20 June 1963. A brand new Sikorsky HH-52A Seaguard (S-62C) doing what it was good at– landing in calm(ish) water to make hull-borne rescues, in this case during an exercise. The bird, CG1363 (MSN-62-040), is from the Coast Guard Air Station, Floyd Bennett Field, Brooklyn, 3rd CG District.
USCG Photo 26-G-06-17-63(04), National Archives Identifier 205591343
Sadly, 1363 was destroyed at Trinidad Head near Eureka, California on 22 December 1964, just 18 months after the above photo was snapped. The helicopter crashed into a mountain in IFR conditions during a flood rescue operation in a heavy storm, killing all seven aboard including three crewmen and four individuals that had just been rescued.
“In a quiet inlet of the Bering Sea, a YP Boat gets a coat of paint and a sub ties up for fuel and provisions. The short Alaskan day is ending and lights may be seen in the barracks until total darkness requires a blackout.”
Painting, Oil on Board; by William F. Draper; 1942; Framed Dimensions 20H X 24W NHHC Accession #: 88-189-N
While the naval aspect of the Aleutians Campaign ended strong for the US, with RADM Charlie McMorris’ victory off the Komandorski Islands in March 1943 and the swansong of Operation Cottage five months later, it started rough, at the raid on Dutch Harbor in June 1942, and was a long uphill slog that, considering Nimitz’s big fleet problems in Guadalcanal, 5,000 miles on the other side of the Pacific, was always a backwater.
Uncrewed systems employed by assorted American maritime agencies almost never get any love, from Big Navy on down.
Almost.
It should be of interest these two recent videos from NOAA and the USCG on, respectively, the 25-foot-long DriX uncrewed surface vehicle, and the latter’s Operation Demonstration Coquí which has been working with 26 RDC, a RIB-based USV (including the use of a hand-launched RQ-20B Puma UAV), as well as a neat little VTOL UAV, the FVR-90.
Coast Guard Cutter James, returning from an East Pac deployment, seen at Port Everglades, Florida, Oct 26, 2023, including four Scan Eagle UAV contractors and one of their drones. 231026-G-FH885-1002
Pumas have been seen as well.
Coast Guard Cutter Oliver Henry (WPC 1140) in the Philippine Sea, lobbing a RQ-20B Puma UAS drone from the deck of the 158-foot Sentinel class color while on CTF75 taskings
Kevin Vollbrecht, an engineering development technician with Aerovironment Inc., launches a PUMA AE unmanned aircraft system from the flight deck of Coast Guard Cutter Polar Star during Operation Deep Freeze 2016 in the Southern Ocean Jan. 3, 2016. The UAS will play a role in selecting the optimal route through pack ice as the cutter transits to McMurdo Station, Antarctica. (U.S. Coast Guard photo by Petty Officer 2nd Class Grant DeVuyst)
As for NOAA, they also have Saildrones– which capture amazing footage inside hurricanes, and swimming Ocean Gliders, which don’t get enough attention.
In a recent Warship Wednesday (Coast Guard Ron Three) we touched on the use of the 81mm mortar in two fixed emplacements behind the main 5-inch gun mount on a series of USCG cutters that deployed to Vietnam between 1967 and 1972.
The 81mm mortar was mounted on either side of the No. 1 (5-inch) mount, seen here on USCGC Campbell in 1967.
Developed by the Navy and Coast Guard in two different models (Mark 2 Mod 0 and Mark 2 Mod 1) in the early 1960s, the thought behind such mounts was that they could be used for illumination quicker and easier than shooting star shells from the main gun (which also could conceivably leave the main gun slow to switch gears from lofting illum shells to hitting surface/shore targets with HE).
Plus, the mortars could be used for near-shore naval gunfire support as well.
Rel. No. 6135: USCGC POINT LOMAS FIRED AT SUSPECTED VIET CONG CAVE HIDEOUT: An 81mm mortar shell fired from the 82-foot U.S. Coast Guard Cutter POINT LOMAS (WPB-82321) shatters rocks over the entrance to a suspected Viet Cong cave hideout along a beach in a Viet Cong controlled area near Danang. Rounds from a .50 caliber machine gun, mounted piggyback on the mortar gun also were fired into the cave. Commanding the POINT LOMAS is Lieutenant Keith D. Ripley, USCG of Baltimore, Md. The 82-footer was stationed at Port Aransas, Texas, before reporting for duty with Coast Guard Squadron One’s Division 12, based at Danang, Vietnam, in July 1965.
The Navy also heavily used them on just about everything that moved that was smaller than 165 feet in length, as detailed by Bob Stoner GMCM (SW) Ret. over at Warboats.org.
Navy 50-foot coastal patrol craft (PCF); Navy 75-foot fast patrol boats (PTF, “Nasty”-class); Navy 95-foot fast patrol boats (PTF, “Osprey”-class); Navy 164-foot patrol gunboats (PG, “Ashville“-class); miscellaneous riverine craft which were mostly converted LCM-6 landing craft: MON (monitor); CCB (command and control boat); Zippo (flame thrower boat); ASPB (assault support patrol boat); HSSC (heavy SEAL support craft); and advanced tactical support bases such as SEA FLOAT/SOLID ANCHOR (Nam Can) and BREEZY COVE (Song Ong Doc).
Cam Ranh Bay, Republic of Vietnam. Gunner’s Mate Second Class Robert Phalen, left, and another crewmember of Fast Coastal Patrol Craft 42 (PCF 42) prepare to fire an 81mm Mortar while on patrol, 18 October 1968. 428-GX-K60314
South Vietnam. Engineman Second Class McCune drops a projectile into a mortar on the deck of the fast coastal patrol craft (PCF-3) of Coast Division 11 as Boatswain’s Mate First Class Byerly stands by to fire on the Viet Cong unit position. Photographed by F. L. Lawson, 17 July 1967. 428GX-K40159
GMCM Stoner:
The mortar itself is mounted on a very robust tripod and uses clamps to control traverse and elevation angles. Unless fitted with NO FIRE zone mechanical stops, the mortar has 360 degrees of traverse and -30 degrees of depression, and +71.5 degrees of elevation. Its rate of fire is 18 rounds/minute at 45 degrees elevation in DROP FIRE mode and 10 rounds/minute in TRIGGER FIRE mode. Sights for the mortar are attached to the left side of the elevation arc. The weight of the Mk 2 Mod 0 was 593 pounds; the weight increased to 677 pounds in the Mk 2 Mod 1 (with machine gun). The range of the 81mm (direct) was 1,000+ yards; (high angle, indirect) was 3,940 yards. The maximum effective range of the .50 Browning machine gun was 2,000 yards; the maximum range was 7,440 yards.
From the 1966 manual, OP 1743, of the Mark 2 Mod 0:
Post-Vietnam, the Navy’s nascent riverine and littoral capability transitioned to Boat Support Units which later changed their name to become Coastal River Squadrons, then later the Special Boat Squadrons and SBTs, with some Mark 2s remaining in service, especially in reserve outfits, into the mid-1980s.
Likewise, the USCG kept their Mark 2s on stateside cutters– both on small 82- and 95-footers as well as high endurance 255-to-378-foot cutters– into the early 1980s.
USCGC Cape Jellison (WPB-95317) getting some time in off Seward Alaska in the early 1980s with their 81/.50 cal mount
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Warship Wednesday, Nov. 27, 2024: Ron Three
French Navy image
Above we see the white-hulled U.S. Coast Guard Reliance-class cutter Valiant (WMEC 621), steaming alongside the French Navy’s surveillance frigate FS Ventose (F733) on 29 Sept. 2024, while underway in the Windward Passage. Valiant, built in the 1960s, originally carried a 3″/50 DP gun of the same sort they used to put on submarines in WWII, but since the 1990s has only carried a 25mm chain gun forward. Ventose, which is only marginally larger than the cutter, totes a 3.9″/55 DP gun in a CADAM turret recycled from the old carrier Clemenceau.
The French, in their design concept behind Ventose and her sisters, intended them for solo overseas constabulary service, roughly akin to what the USCG’s large cutters have done for over a century Sadly, the Coast Guard long ago landed their big guns and today just have 57mm pop guns on even their largest cutters.
It wasn’t always like that.
Coast Guard Squadron Three
Immediately after the Gulf of Tonkin Incident in 1964, the Navy got heavily involved in Southeast Asia. One rub of the situation was that road-poor Vietnam had a river and stream-dotted 12,000-mile coastline and a myriad of some 60,000 small craft in its littoral. That meant the only way you could halt and screen this shallow-water maritime traffic was by getting your own shallow-water assets and the saga of the “Brown Water Navy” and Operation Market Time was born.
By August 1965, TF 115 comprised eight large U.S. Navy vessels (primarily DERs augmented by MSOs and MSCs), 11 Coast Guard WPBs, 15 VNN Sea Force ships, and 215 junks. These were soon augmented by hundreds of the new 50-foot PCFs (Swiftboats), and the Navy sent more and more old destroyers and escorts into the near-shore zone for interdiction and naval gunfire support.
ADM Roy Johnson, Commander Pacific Fleet, forced in March 1967 to reassign Market Time DERs to a new interdiction campaign, known as Operation Sea Dragon, against lines of communication in North Vietnam, requested five Coast Guard high endurance cutters (WHECs) to replace the DERs in the Market Time barrier. Thus was born Commander, Task Unit (CTU) 70.8.6 (Coast Guard Squadron Three).
The Ships
In early 1967, the Coast Guard had 37 of what they termed at the time “high endurance cutters,” larger ocean-going vessels that were expected to be pressed into service as destroyer escorts/patrol frigates should WWIII start.
Between 4 May 1967 and 31 January 1972, no less than 31 HECs completed lengthy deployments to Vietnam, one of them twice. These weren’t short cruises. All were at least six months long while many were well past that to nine or ten months. Keep in mind this was while the agency was still part of the civilian U.S. Transportation Department (they have been part of Homeland Security since 2003) and not transferred wholesale to the Navy as in WWI and WWII.
These 31 ships included six of six 327-foot Treasury-class cutters that had seen convoy escort and amphibious landing operations in WWII; nine of 18 smaller and almost as well-traveled 311-foot Casco-class cutters (former WWII Navy Barnegat-class small seaplane tenders); nine of 13 stubby 255-foot Owasco-class cutters which entered service just after WWII, and the seven of nine brand-new 378-foot Hamilton-class cutters which included such modern features as helicopter hangars and gas turbine powerplants.
Nine of the 18 311-foot Casco class cutters would serve in CGRON3 off Vietnam– and two of them would transfer to the RVNN at the end of their U.S. service (listing via the 1960 ed of Janes)
A big reason these were sent to Vietnam was that they had a relatively shallow draft (12.5 feet on the 311s and 327s, 17 on the 255s, and 15 on the 378s), allowing them to operate close to shore, surface search radar (SPS-23, augmented by SPS-29 air search), had a decent commo suite that allowed interfacing with Big Navy C4I assets, had crews familiar with sometimes sketchy coastwise interdiction in a littoral, and, most importantly, all carried a simple and easily supportable Mark 12 DP 5-inch gun (in enclosed Mk 30 single mountings with local Mk. 26 Fire Control) and knew how to use it.
The Deployments
In all, the 31 cutters sent to Vietnam steamed 1,292,094 combined miles on station, spending some 62.6 percent of their time underway conducting 205 Market Time patrols.
Five Casco class Barnegat class cutters 311 USCG Squadron Three, probably taken in Subic Bay on the way to Vietnam in 1967
CGRON3 headed to Vietnam in a column from Subic Bay
This was enabled by 1,153 underway replenishments and a smaller number of vertical replenishments.
At sea off Vietnam. Australian destroyer HMAS Hobart approaching a Mispillion class replenishment oiler USS Passumpsic (AO-107) as it is tanking a Coast Guard 311-foot HEC, likely CGC Pontchartrain. AWM Photo P01904.005 by Peter Michael Oleson.
The Coast Guard sent eight deployments of HECs to support CGRON3 with the first five each comprised of five high-endurance cutters. The sixth deployment included three high-endurance cutters, with two of the three turned over to the Vietnamese Navy at the end of the tour. The seventh and eighth deployments each consisted of just two cutters.
First Deployment
USCGC Barataria (WHEC 381) 4 May 67 — 25 Dec 67 (Casco) USCGC Half Moon (WHEC 378) 4 May 67 — 29 Dec 67 (Casco) USCGC Yakutat (WHEC 380) 4 May 67 — 1 Jan 68 (Casco) USCGC Gresham (WHEC 387) 4 May 67 — 28 Jan 68 (Casco) USCGC Bering Strait (WHEC 382) 4 May 67 — 18 Feb 68 (Casco)
Naval Base Subic Bay – USCG Squadron 3, first deployment, showing five freshly-painted Casco-class cutters alongside the repair ship USS Jason (AR-8) in late April before heading to Vietnam. Note this is before the Coast Guard adopting their now famous bow “racing stripe” 221206-G-G0000-120
A rusty and hard-serving USCGC Barataria (WHEC 381) off Vietnam in late 1967 showed a less than gleaming appearance. Note she doesn’t have a racing stripe yet and her 26-foot Monomoy is away. 230807-G-M0101-2004
Barataria set a fast pace of effectiveness during her deployment in Vietnam waters. Underway 83 percent of the time, the cutter cruised over 67,000 miles without a major mechanical or electrical failure. Keeping a close watch on all moving craft in her surveillance area, Barataria detected, inspected, or boarded nearly 1,000 steel-hulled vessels traversing her area, any one of which could have been a trawler trying to sneak supplies to the enemy. Barataria was called upon many times to use her main battery against shore-based enemy troops who were aggressively engaged with Allied forces. Representative of the high state of readiness and training of the cutter’s men is the fact that U.S. Army spotter planes reported all rounds on target, never once falling out of the target area. On one mission three direct hits were scored on point targets that had been spotted by aircraft. She returned to the US on 12 January 1968 and was reassigned to San Francisco.
Second Deployment
USCGC Androscoggin (WHEC 68) 4 Dec 67 — 4 Aug 68 (Owasco) USCGC Duane (WHEC 33) 4 Dec 67 — 28 Jul 68 (Treasury) USCGC Campbell (WHEC 32) 14 Dec 67 — 12 Aug 68 (Treasury) USCGC Minnetonka (WHEC 67) 5 Jan 68 — 29 Sep 68 (Owasco) USCGC Winona (WHEC 65) 25 Jan 68 — 17 Oct 68 (Owasco)
255-foot Owasco class USCGC Minnetonka (WHEC 67), Vietnam
Of the above, Winona noted in her history that:
She steamed 50,727 miles, spent 203 days at sea, treated 437 Vietnamese, sunk one enemy trawler, destroyed 50 sampans and damaged 44 more, destroyed 137 structures and damaged 254, destroyed 39 bunkers and damaged 27, destroyed two bridges and damaged another, destroyed 3 gun positions and killed 128 enemy personnel, expending a total of 3,291 five-inch shells.
“W O W . . . . . .The initials of these three high endurance cutters spell out that expression of surprise as they nest alongside Riviera Pier at the U.S. Naval Base, Subic Bay, R.P. The three, Winnebago, Owasco, and Winona, along with a fourth unit of Coast Guard Squadron Three, the Bibb, was in Subic Bay for inchop, outchop, and upkeep, marking the first time that this many ships of the five-cutter squadron had visited there since it was formed 18 months ago. The squadron is a part of the Seventh Fleet’s Cruiser Destroyer Group and the cutters serve on the Coastal Surveillance Force’s Operation Market Time in Vietnam.” COMCOGARDRONTHREE PHOTO NO. 101068-01; 18 October 1968; Dale Cross, JOC, USCG, photographer
Owasco’s history notes that on her Vietnam deployment:
By the end of her tour overseas, she had supplied logistical support to 86 Navy Swift boats and 47 Coast Guard 82-foot patrol boats. She had detected 2,596 junks and conducted 178 “actual boardings and 2,341 inspections,” exceeding the “results of any Squadron Three cutter thus far.” She conducted 17 Naval Gunfire Support Missions, firing 1,330 rounds of 5-inch ammunition.” She was officially credited with killing four enemy soldiers, destroying 18 bunkers, and damaging 10, destroying 11 “military structures” and damaging 17, destroying 550 meters of “Enemy Supply Trails,” destroying 1 sampan, 1 loading pier, and interdicting 3 “Enemy Troop Movements.” She carried out 49 underway replenishments while in theatre and her medical personnel carried out 7 medical and civil action programs (MEDCAP), treating 432 Vietnamese civilians.
Fourth Deployment
USCGC Spencer (WHEC 36) 11 Feb 69 — 30 Sep 69 (Treasury) USCGC Mendota (WHEC 69) 28 Feb 69 — 3 Nov 69 (Owasco) USCGC Sebago (WHEC 42) 2 Mar 69 — 16 Nov 69 (Owasco) USCGC Taney (WHEC 37) 14 May 69 — 31 Jan 70 (Treasury) USCGC Klamath (WHEC 66) 7 Jul 69 — 3 Apr 70 (Owasco)
Both Taney and Spencer had already seen much WWII service, with the former being at Pearl Harbor and the latter a bona fide U-boat slayer. Here, on April 17, 1943, USCGC Spencer sinks U-327. National Archives Identifier: 205574168 https://catalog.archives.gov/id/205574168
Fifth Deployment
USCGC Hamilton (WHEC 715) 1 Nov 69 — 25 May 70 (Hamilton) USCGC Dallas (WHEC 716) 3 Nov 69 — 19 Jun 70 (Hamilton) USCGC Chase (WHEC 718) 6 Dec 69 — 28 May 70 (Hamilton) USCGC Mellon (WHEC 717) 31 Mar 70 — 2 Jul 70 (Hamilton) USCGC Pontchartrain (WHEC 70) 2 Apr 1970 — 25 Oct 1970 (Owasco)
Sixth Deployment
USCGC Sherman (WHEC 720) 22 Apr 70 — 25 Dec 70 (Hamilton) USCGC Bering Strait (WHEC 382) 17 May 70 — 31 Dec 70 (Casco) USCGC Yakutat (WHEC 380) 17 May 70 — 31 Dec 70 (Casco)
USCGC Castle Rock (WHEC 383) 9 Jul 71 — 21 Dec 71 (Casco) USCGC Cook Inlet (WHEC 384) 2 Jul 71 — 21 Dec 71 (Casco)
Interdiction
The primary reason for these big cutters to be in Vietnamese waters was to sanitize them by combing out vessel traffic smuggling contraband, primarily small arms and munitions, to Viet Cong guerillas in the south. They did this in spades, closing with some 69,517 vessels in the five years that CGRON3 was part of Market Time. Of these, no less than 50,000 were inspected alongside, while 1,094 were boarded and searched.
At Sea – USCG Squadron 3, Vietnam. Note the 26-foot Mark V Motor Surf Boat, YAK2, likely from CGC Yakutat, dating the photo to 1970. The nine-man crew includes at least two M16s and five flak jackets, hinting at a five-man boarding team. 221206-G-G0000-119
CGC Winona on Market Time Patrol by JOC Dale E. Cross, USCG. Note the M16-armed Coastie on the lookout to the right while the flak-vest-equipped junior officer goes over a mariner’s papers. 231220-G-G0000-107
CGC Winona on Market Time Patrol by JOC Dale E. Cross, May 16, 1968. Release No. 36-68 231220-G-G0000-106
New armaments were fitted to assist with this type of seagoing asymmetric warfare. Cutters typically picked up at least two (later cutters carried as many as six) .50 caliber air-cooled M2 Brownings on pintel mounts.
Also new were pintel-mounted 81mm mortars which could be used either for launching illumination parachute rounds, in counter-ship operations, or in suppressing fire near-shore (out to 4,500 yards).
At Sea – USCG in Vietnam – Market Time – Squadron Three with a detainee on deck, one of at least 128 detained and handed over to local ARVN assets. Note the loaded M2 .50 cal to the left and the sidearm-equipped CPO on watch. 221206-G-G0000-121
CGC Klamath on Market Time, showing off her new 50 cal and mortar emplacement
The 81mm mortar was mounted on either side of the No. 1 (5-inch) mount
311-foot Casco (Barnegat) class cutter Half Moon firing the 5″/38 on NGFS in Vietnam. Note the two mortars on the base of the superstructure between the ship’s Hedgehog ASW device
Campbell’s mortar team
Campbell’s mortar team “hanging an 81” ashore
The circa early 1960s small arms lockers for HECs included 40 M1 rifles, five M1 carbines, 17 .45 caliber M1911s, two Thompson SMGs, and two M1919 .30-caliber LMGs. With Vietnam on the schedule, this was updated.
Clark’s Commandos: CGC Klamath’s Market Time boarding team. Note the M16s, flak vests, .45s, and shotguns
Campbell’s boarding team, casual in flak vests and cut-off dungaree shorts, complete with M16s
From Shots that Hit, a Study of USCG Marksmanship, 1790-1985 by William Wells:
The cutters exchanged their M1 rifles and Thompson SMGs for the M16 rifle. However, many Coast Guardsmen were exceptionally adept at procuring arms of any nature. The use of revolvers in many calibers and models was common, as were communist weapons of which the AK-47 was the favorite. In addition to the M16, the M79 grenade launcher and the M60 machine gun were added. As far as weapons on board the cutters, it was an anything-goes allowance.
Naval Gunfire Support
The large cutters of CGRON3 conducted no less than 1,368 combined NGFS missions, firing a staggering 77,036 5-inch shells ashore. Keep in mind that most of these cutters only carried about 300 rounds in their magazines, so you can look at that amount of ordnance expended being something like 250 ship-loads.
Minnetonka (WHEC-67) providing fire support during the Vietnam War. Note the loose uniform of the day
Minnetonka’s 5-inch “Iron Hoss” blistered after all-night fires
USCGC Wachusett (WHEC-44) NGFS Vietnam
CGC Waschusett At Sea with USCG Vietnam Squadron 3, logging gunfire missions, with the spades due to “digging dirt.” 221206-G-G0000-118
USCGC Cook Inlet conducts a fire support mission off the coast of Vietnam, in 1971
Color photograph of Cutter Duane performing gunfire support mission with its forward 5-inch gun off the coast of Vietnam. U.S. Coast Guard photo.
5/”38 from USCG Hamilton-class cutter providing NGFS off Vietnam
Powder and shell consumption was so high that some cutters would have to underway replenish or VERTREP 2-3 times a week while doing gun ops.
“Crewmen cart high explosive projectiles across the deck of the 311-foot U.S. Coast Guard Cutter Half Moon for the ship’s five-inch gun to hurl at a Viet Cong emplacement near a U.S. Special Forces Camp in the Song on Doc area, South Vietnam.” Coast Guard Photo Rel. No. 6215; 12/67;
To the casual observer, the all-white hulls of Market Time’s high-endurance cutters looked like angels of mercy, but the 5-inch 38-caliber gun mounts on these ships could let loose significant destructive power upon an unsuspecting enemy up to nine miles away. Nine men worked in the cramped confines of these turrets, enduring extreme heat and the ever-present smell of gun grease and cordite, to place ordnance on targets.
In built-up areas like Song On Doc, where the Viet Cong often sheltered in structures, the methodology for dislodging defenders was to set the initial rounds to burst in the air to kill anyone exposed outdoors. Assuming troops will then run for bunkers and slit trenches soon after a bombardment begins, the next shots would be set to hit the ground and explode. Gunners would then walk the rounds across a target area like a checkerboard so as to cover as much of the kill zone as possible. White phosphorus represented the grand finale. Since many Vietnamese structures were made of bamboo, it did not take many well-placed WP rounds to transform a small village or small settlement into smoldering ashes. Shards of white phosphorus extending outwards from an airburst shot literally created a rain of fire, igniting everything in a wide dispersal area.
Commander Herbert J. Lynch, who commanded Winona (WHEC-65) in early 1968, claims it was “nothing to fire 50 rounds of shoreside support. We did so much shooting we had to re-barrell the gun.”
The shallow draft of the cutters was key.
Again, Sherwood:
Although many of these rounds consisted of unspotted harassment and interdiction missions that did little more than tear up ground and knock down palm trees, when Coast Guard vessels were allowed to fire at actual targets, the results could be devastating. For instance, on 27 August, Half Moon conducted a gunfire mission against Viet Cong troops operating on the Ca Mau Peninsula in An Xuyen Province. Subsequent intelligence reports stated that 5-inch fire destroyed three enemy buildings and killed 11 Viet Cong.
On 26 September 1967, Yakutat (WHEC-380) destroyed or damaged 27 fortified enemy positions, four sampans, and an enemy canal blockade in a single gunfire support mission off the coast of An Xuyen Province.
The high endurance cutters, with their relatively shallow 22-foot draft, were the only ships with 5-inch guns capable of operating in the shallow waters of An Xuyen Province and much of the rest of the IV Corps area.
“Sometimes we would go into areas with only one or two feet clearance between the hull and sea floor,” recalled Captain Robert W. Durfey, who commanded Rush (WHEC-723) in 1970, but “fortunately the bottom was mostly mud.”
The Cutter Rush, working with an Australian destroyer, brought its guns to the aid of a small Special Forces camp in the village of Song Ong Doc. The village, located in the middle of Viet Cong-held territory, was being overrun. Gunfire from the two ships drove off the attackers and left 64 Viet Cong dead.
The results, as reported back by ground and air observers, included 2,612 structures destroyed, another 2,676 damaged, and body counts (Vietnam was big on body counts) including 529 enemy KIA and 243 enemy WIA.
Surface engagements
When it came to fighting often heavily-armed enemy cargo trawlers, several pitched sea fights, typically at night, are all but lost to history.
One such fight in March 1968, as told by Sherwood:
The Coast Guard cutter Androscoggin (WHEC-68) made radar contact with the infiltrator at 2047 local time and began maintaining covert surveillance. Early in the morning of 1 March, the trawler crossed into the 12-mile contiguous zone 22 miles from Cape Batangan, and Androscoggin soon challenged it by firing an illumination round. The trawler responded with machine gun fire, and Androscoggin returned fire with her 5-inch 38-caliber guns, hitting the trawler in the starboard quarter. Army helicopter gunships, Point Welcome, Point Grey, and PCFs -18 and -20 joined the attack as the trawler headed toward the beach. At 0210, the trawler beached itself and blew itself up in two attempts. During the battle, machine-gun rounds hit Androscoggin and other units but caused no casualties. Salvage crews later recovered a variety of military cargo from the scene, including 600 rifles, 41 submachine guns, and 11 light machine guns along with ammunition. Of the North Vietnamese crew, all that was recovered was a head and a full set of teeth.
Another fight on the same night saw Winona close to within 550 yards of an armed trawler that lit up the cutter with a mix of .50 caliber and .30 caliber machine guns, hitting the little 255-foot cutter at least 13 times and wounding three of her crew. Once Winona got her 5-incher into play, however, the trawler “disintegrated” with the entire fight lasting just two minutes.
From her history:
“We shadowed the trawler for six long hours into the night before it finally turned for the beach, our cue to intercept. Closing to 700 yards we illuminated and challenged them to stop when a running gun battle ensued. The effect in the night outfourthed the 4th of July. .50 cal. tracers, fiery red in the black, streaked both ways, punctuated by 5″ gun flashes, white with the intensity of burning magnesium. The ricochets whined off into the distance, or metal piercing rounds thwacked through steel. For seven minutes we fought until a 5” round found home at the base of the trawler’s deckhouse, and the night was day, and our ship rocked from the explosion that rained debris on our decks. For meritorious achievement that night, Captain Lynch was awarded the Bronze Star. Lt. Commander [J.A.] Atkinson, conning officer, Lt. [M.J.] Bujarski, gunnery officer, and BM3 “Audie” Slawson, director operator were awarded Navy Accommodation Medals. All four were authorized a Combat “V”.”
There were no enemy survivors. Enemy fire pierced Winona’s hull and deckhouse six times and also left several dents but she sustained no personnel casualties.
Capt. Paul Lutz describing the battle between the cutter Sherman and the large armed trawler SL3 at the mouth of the Mekong on the night of 21 November 1970:
“Sherman sinks armed enemy vessel, SL3, at Mekong River mouth, 21 November 1970” by John Wilinski
After the first round in direct fire with point detonating rounds, I saw an explosion and a bright illumination of the enemy vessel. I knew that prior enemy vessels had usually destroyed themselves when caught by allied forces and accordingly I thought it must be a self-destruct explosion. However, as our succeeding rounds showed as they hit there was the same marked explosion and a vivid illumination of the enemy vessel. Sherman was firing her forward 5″ 38 caliber gun at a maximum rate of fire (as I remember 18 rounds/minute) and every round hit and brilliantly illuminated the enemy. The rhythmic hit, hit, hit, etc. were synchronized with the firing of Sherman’s 5-inch gun and were awesome to observe. After about 8 to 10 rounds (and hits), taking about one half a minute the enemy ship was stopped and brightly burning.
Navy divers later found the trawler full of .60 caliber machine guns and recoilless rifles along “with enough ammunition and weapons to arm a division.”
Motherships
Operating between two and 20 miles offshore, these big cutters were often the closest thing to “The Fleet” that was available to the truly small boats that were running missions inshore.
They proved a home away from home for the growing fleet of CGRON1’s 82-foot patrol boats, of which ultimately 26 were deployed to Vietnam.
Point class cutter refueling from USCGC Dallas in Vietnam
Point class refueling from USCGC Dallas in Vietnam.
USCGC Point Lomas (WPB-82321) alongside the 327-foot USCGC Duane WHEC 33 1968 Vietnam
They also proved of vital support to Navy PCFs, with the small 50-foot Swiftboats typically having to swap out crews every 24 hours to remain on station. This meant lots of hot meals provided for these Brown Water sailors in the cutters’ mess, cold seawater showers, and a place to drop off mail and grab an (often warm) bunk. Then of course the boats would top off their fuel and water, and grab some snacks and ammo as a parting gift before motoring off with a rotated crew.
CGC Bibb in Vietnamese waters with a six-pack of nursing Swiftboats 200227-G-G0000-1003
The cutters also served as a floating hospital, with the ship’s corpsmen and public health service doctors ready to do what they could.
Wounded Swiftboat personnel being transferred to USCGC Campbell
As told by Mendota, who was only a 255-footer herself, a good 30 feet smaller than any cramped destroyer escort fielded in WWII!:
Mendota was not only home to the 160 men who were permanently assigned as her crew. She also served as a mother ship to U.S. Navy Swift boats and their crews, and to a lesser degree the Coast Guard 82-foot patrol boats, which operated in the inner barrier closer to shore. Mendota serviced the 82-footers 40 times during her stay while the Swift boats received logistic support daily, and the crews alternated being on board Mendota every other day. The medical staff also aided 51 men who had been wounded in action.
In all, CGRON3 logged 1,516 small craft replenishments over its five-year history.
Medcaps
As part of the “winning hearts and minds” concept, these big cutters were also active in humanitarian initiatives during lulls in combat. Ongoing Medical Civil Action Program, or MEDCAP, services saw the cutters land their medical personnel ashore to provide public health aid to locals.
This is well-told by Chief Hospital Corpsman Joseph “Doc” White, who served on CGC Bering Strait in 1970 and had to race ashore to respond to an attack on Song Ong Doc village.
Chief Joe White providing medical care to local Vietnamese and their children during a visit to a village in South Vietnam. (Via Mrs. Misa White, USCG photo 201218-G-G0000-1003)
“Doc” White providing medical care to wounded Vietnamese villagers. (Via Mrs. Misa White, USCG photo 201218-G-G0000-1005)
Besides the MEDCAPs, the cutter’s crews were also involved in assorted Civic Action Projects that ranged from installing playground equipment at a village school to passing the hat for enough donations for a refrigerator for the Saigon School for Blind Girls.
She was assigned to Coast Guard Squadron Three, Vietnam, serving in theatre from 2 March to 16 November 1969, while under the command of CDR Dudley C. Goodwin, USCG. She was assigned to support Operation Market Time, including the interdiction of enemy supplies heading south by water and naval gunfire support [NGS] of units ashore. By July 1968, she had conducted 12 NGS missions, destroying 31 structures, 15 bunkers, 2 sampans, and 3 enemy “huts.”
Combat duties were not all the cutter did. The Sebago’s medical staff, including the cutter’s doctor, Public Health Service LT Lewis J. Wyatt, conducted humanitarian missions in Vietnam, treating over 400 villagers “for a variety of ills.” The crew visited the village of Co Luy, 80 miles south of Da Nang, and built an 18-foot extension to a waterfront pier for the villagers. She also served as a supply ship for Coast Guard and Navy patrol boats serving in Vietnamese coastal waters.
The crew of Mendota also participated in humanitarian missions while serving in Vietnam. These missions were concentrated on the village of Song Ong Doc, on the Gulf of Thailand. The medical team conducted MEDCAPS (Medical Care of the Civilian Population), treating over 800 Vietnamese for every variety of medical malady during 14 visits to the village. The crew also helped rebuild a small dispensary. In addition, assistance was rendered to Vietnamese and Thai fishermen who were injured while fishing. U.S. and South Vietnamese forces were also treated by the medical personnel.
Being the Coast Guard, the big cutters took a break from walking their Market Time beat to respond to numerous calls for assistance from mariners in distress.
This included Bibb responding to the Thai M/V Daktachi and her shop crafting her a new drive shaft for her broken fuel pump, Campbell aiding the Filipino vessel Carmelita which had a broken propeller shaft and was drifting in the San Bernadino Strait, Morgenthau rescuing 23 survivors from the sinking merchant ship Joy Taylor, and Owasco pulling off the crew of the SS Foh Hong and towing the flooded vessel to safety. One cutter, Winnebago, chalked up three different maritime rescues, going to the assistance of the swamped Vietnamese coastal freighter Thuan Hing, pulling 35 people from the distressed M/V Fair Philippine Anchorage, and responding to an SOS from SS Aginar.
Endgame
As part of Vietnamization, the Coast Guard did a lot of out-building for the South Vietnamese Navy. The 26 Point class cutters of CGRON1 were all handed over in warm transfers by 1971. Of the 18 311-foot Casco-class cutters operated by the USCG, seven– Absecon, Chincoteague, Castle Rock, Cook Inlet, Yakutat, and Bering Strait — were transferred to South Vietnam in 1971 and 1972.
The last two, Bering Strait and Yakutat, were selected to be used by the Vietnamese Navy as offshore patrol units and operated hybrid mixed crews for the last half of 1970. This earned Bering Strait a haze-grey scheme.
Profile photograph of High-Endurance Cutter Bering Strait in a rare paint scheme of haze gray with Coast Guard “Racing Stripe.” Mackinaw. (Mrs. Misa White)
As detailed by Tulich:
They arrived in Subic Bay in June 1970 with a small cadre of Vietnamese on board, which was supplemented by another contingent at Subic. The VNN personnel were taught the operations of the ship and soon took over important positions in CIC boarding parties, NGFS details, and repair crews. The VNN also performed the external functions of the ship, especially boardings. The VNN officers soon became underway and in-port OODs. Teams assumed engineering watches, navigated, piloted, and provided all the control and most other positions in the NGFS teams. Their training became apparent when a combined USCG/VNN rescue and assistance party from Yakutat extinguished a serious fire and performed damage control on a USN landing ship.
The transfer of Bering Strait and Yakutat at the end of their 1970 deployment, in full color (but silent):
CGRON3 was formally disestablished on 31 January 1972, leaving three shore establishments– the Con Son and Tan My LORAN stations and the USCG Merchant Marine Detachment in Saigon– as the last remnants of the service’s efforts in Vietnam. Even those would be gone by 5 May 1973 when the final Coast Guard personnel departed the country.
Ingham returning from Vietnam in 1969
USCGC Duane (WHEC-33) returning from Vietnam, 1968
Between 1965 and 1973, the USCG sent some 8,000 men to Vietnam– nearly a quarter of its active force– with the bulk of these, more than 6,000, being those afloat with CGRON3.
Of the seven large cutters handed over to the VNN in 1971-72, six escaped to the Philippines after the fall of Saigon in 1975 and went on to be used to varying degrees by the Filipino Navy for another decade. The seventh ship, the former CGC Absecon, was captured and bore a red flag as part of the Vietnam People’s Navy into the 1990s.
The Coast Guard eventually whittled down its remaining Vietnam Veteran cutters with two, Taney and Ingham, preserved as floating museums in Maryland and Florida, respectively.
USCGC Ingham, both a WWII and Vietnam Vet, retired in 1988, is well-preserved in Key West (Photo: Chris Eger)
The last cutter in service that had fired shots into Vietnam in anger, CGC Mellon, only decommissioned on 20 August 2020, capping a 54-year career.
Ironically, Mellon is slated to be transferred to the Vietnam People’s Coast Guard at some point in the future, where she will join former CGRON3 sister Morgenthau, which has been flying a red flag since 2017.
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You can almost feel the sea spray on your eyelashes in this one.
U.S. Coast Guard Cutter Munro (WMSL 755) crews interdict a vessel suspected of smuggling drugs in international waters of the Eastern Pacific Ocean, October 2024. Munro is the sixth Legend-class national security cutter homeported in Alameda, California. U.S. Coast Guard courtesy photo.
U.S. Coast Guard Cutter Munro (WMSL 755) crews interdict a vessel suspected of smuggling drugs in international waters of the Eastern Pacific Ocean, October 2024. Munro is the sixth Legend-class national security cutter homeported in Alameda, California. U.S. Coast Guard courtesy photo.
Of note, Munro just offloaded 29,000 pounds of cocaine, with an estimated value of $335.8 million, Tuesday in San Diego.
The nose candy came from a series of nine separate suspected drug smuggling vessel interdictions or events off the coasts of Mexico and Central and South America by Munro, USCGC Vigorous, USCGC Hamilton, and the USS St. Louis (LCS-19), during September and October– the mix showing you just how crowded it is getting in 4th Fleet (USNAVSOUTH) in the East Pac, and how much of a white hull operation it is.
Speaking of recruiting, the USCG just established its first Hawaii-based JROTC, the 14th in the nation. Enrollment nationwide is expected to be 1,200 cadets.
Coast Guard JROTC instructors are hired and employed by the school district and certified by the service. Instructors must be Coast Guard retired, selected reserve, or qualified veterans with at least eight years of service.
The Coast Guard Cutter Stratton (WMSL 752) transits Glacier Bay, Alaska, on Aug. 1, 2024, while patrolling the region. U.S. Coast Guard courtesy photo.
She also logged 334 deck landing qualifications with CG Air Station Kodiak’s MH-60 helicopter aircrews, responded to the 738-foot cargo tanker SS Pan Viva which was beset by a storm north of Dutch Harbor, conducted 20 boardings, did a GUNEX off Dutch Harbor, steamed with the Flight IIA Arleigh Burke USS Kidd (DDG 100), called at CFB Esquimalt (where she picked up three RCN ship riders) and pulled off the “first at-sea refueling evolutions for a national security cutter in the high latitudes.”
It would seem that the crew of Stratton has earned the holidays off.
The Northern Lights illuminate the night sky above the Coast Guard Cutter Stratton (WMSL 752) while operating in the Arctic, Aug. 28, 2024. Stratton’s crew returned to its homeport in Alameda, Calif., on Nov. 4, after completing a 110-day patrol in the Arctic Ocean, Chukchi Sea, and Bering Sea. U.S. Coast Guard courtesy photo.
The last couple of weeks saw three different medium endurance cutters return to their East/Gulf Coast homeports after extensive tours in support of Joint Interagency Task Force-South (JIATF-South), which included clocking in with Homeland Security Task Force-Southeast (HSTF-SE) and Operation Vigilant Sentry.
While OVS, which targets Caribbean maritime mass migration, was first approved in 2004 and is not country-specific, it has gone into overdrive with the recent lawlessness in Haiti following the collapse of that country’s military and police, resulting in a paltry 400 Kenyan police being dropped in by the UN to fight the gangs.
To show just how busy the USCG is in trying to stem the tide of Haitians trying to make it anywhere but Haiti, take these snippets into consideration.
USCGC Mohawk (WMEC 913) completed a 62-day migrant interdiction operations patrol in the Florida Straits on 11 October, interdicted and rescued 41 migrants from unseaworthy vessels, and ultimately repatriated 53, having taken custody of 12 from smaller cutters.
She worked alongside U.S. Customs and Border Protection – Air and Marine Operations air and boat crews along with the Puerto Rico-based 158-foot Sentinel class Cutters Charles Sexton (WPC 1108), Raymond Evans (WPC 1110), Isaac Mayo (WPC 1112), and the buoy tender Maple (WLB 297).
A Coast Guard Cutter Mohawk (WMEC 913) small boat crew rescues 25 migrants from a disabled vessel, on Aug. 20, 2024, while underway in the Florida Straits. Mohawk’s crew conducted a 57-day deployment to carry out maritime safety and security missions in the Seventh Coast Guard District’s area of responsibility. (U.S. Coast Guard photo by Ensign Brian Morel)
USCGC Resolute (WMEC-620)worked with the crews of Coast Guard Cutters William Trump and Reliance to interdict an overloaded and unseaworthy vessel with 181 migrants off the coast of Haiti. “Resolute’s crew worked throughout the night to safely transport Haitian migrants to Coast Guard Cutter Reliance, allowing the crew to provide timely shelter and care to dozens of men, women, and children.” This was in addition to bagging 9,690 pounds of cocaine and 5,490 pounds of marijuana on intercepted go-fasts and sailing vessels and transferred from the Dutch OPV Holland which had a team from U.S. Coast Guard Law Enforcement Detachment 102 embarked.
Not a bad 38-day haul for this elderly 210-foot cutter.
Resolute’s crew sported some interesting threads for the cruise, highlighting their counter-drug ops.
The crew of Coast Guard Cutter Resolute unloaded interdicted narcotics onto Sector St. Petersburg South Moorings, Florida, on Oct. 23, 2024. Armed Coast Guardsmen stood watch over the interdicted drugs to ensure security and accountability of the seized contraband. (U.S. Coast Guard photo by Petty Officer 1st Class Riley Perkofski)
USCGC Bear (WMEC 901)wrapped up a 58-day homeland security and counter-drug patrol in the Windward Passage on 7 October. “While on patrol, Bear crew members successfully deterred over 200 migrants aboard an overloaded vessel from reaching the United States unlawfully by sea, safely ensuring their return to Haiti.
Bear’s crew also intercepted 107 migrants in a joint operation with Coast Guard Cutter Kathleen Moore (WPC 1109). And during two separate events, Bear’s crew repatriated 169 migrants to Haiti.”
A Coast Guard Cutter Bear (WMEC 901) small boat crew interdicts an overloaded vessel unlawfully bound for the United States by sea with over 100 migrants on board, Sept. 15, 2024, while underway north of Haiti. Operation Vigilant Sentry’s mission is to deter unlawful migration while also making sure that dangerously overloaded vessels are stopped to prevent loss of life at sea. (U.S. Coast Guard photo by Petty Officer 1st Class Jeremy Wilbanks)
A vintage deck gun system that was once a staple of the U.S. Navy and Coast Guard has quietly fired its final shots.
Designed by the famed munitions firm of OTO Melara of La Spezia, Italy, and marketed from 1963 onward as the 76/62C Compact, the remote-controlled 76mm (3-inch) gun with its characteristic bubble dome was an immediate hit with NATO and Western fleets, eventually seeing service with 60 nations.
West German Type 148 missile boats show their 76mm OTO guns during a visit to the UK, in 1977
The reason it was so popular was that using aluminum alloys, a water-cooled gun barrel, and an automatic loader with an 80-round magazine, it delivered much better performance than any manned 3-inch gun mount in service at the time while weighing much less. Guided by the ship’s onboard radar and fire control system, it could engage air targets as high as 13,000 feet and surface targets out to 20,000 yards.
The 76/62 designation comes from the bore (76mm) and barrel length (62 caliber), the latter figure denoting a 4,724mm long barrel, which translates to 15.5 feet.
The 76/62C Compact, seen in its components from a 1980 U.S. Navy training publication:
Note the gun control panel which was mounted in the ammunition handling room below deck under the mount. The mount captain fired the gun from the panel while two ammunition loaders stood by to reload the magazine.
A look under the hood so to speak, showing off the details of the gun itself and its magazine.
The mag used two concentric rings of shells, each holding 35 rounds, with a hydraulic motor rotating the screw feeder– which held another six rounds not unlike that of a common “six-shooter” revolver. Together with the four rounds held in the loader drum, the gun held 80 shells, which could be expended in just under one minute.
A view of the magazine rings of the MK-75 gun aboard USCGC Mohawk (WMEC 913) while underway in the Atlantic Ocean, Sept. 1, 2022. (U.S. Coast Guard photo by Petty Officer 3rd Class Jessica Fontenette)
The types of “war shot” rounds in U.S. service included High Explosive Point Detonating (HE-PD), High Explosive Infrared (HE-IR), Variable Time Non-fragmenting (VT-NF), High Explosive Variable Time (HE-VT), and High Explosive Radio Frequency proximity (HE-RF).
Exercise and training shells included the Blind-Loaded and Plugged (BL&P) round with a live round that had an inert projectile while wholly inert rammable and non-rammable dummy and gauging rounds were also available.
Crew load 76mm rounds into the magazine of the MK-75 gun aboard USCGC Mohawk (WMEC 913) while underway in the Atlantic Ocean, Sept. 1, 2022. HE-PD rounds can be seen in the outer ring and blue-colored BLP target rounds are peeking out of the inner ring. (U.S. Coast Guard photo by Petty Officer 3rd Class Jessica Fontenette)
The gun control panel below-deck under the mount, complete with its view of the magazine rings. Seen on the USCGC Midgett (WHEC 721) in June 1999. USCG photo by PA2 Alice Sennott
Shells were brought on and off the packed in grey shipping containers, loaded old-school via chain gangs.
Sailors aboard the Oliver Hazard Perry-class guided-missile frigate USS Rodney M. Davis (FFG 60) move 76mm rounds during an ammunition onload. Rodney M. Davis, based out of Everett, Wash., is on patrol in the 7th Fleet area of responsibility supporting security and stability in the Indo-Asia-Pacific region. (U.S. Navy photo by Mass Communication Specialist 3rd Class Derek A. Harkins/Released)
For a great look at the inner guts of the 76/62C Compact, check out this short video from the German Navy, which has used the gun since 1965. Don’t worry if your German is rusty, the video speaks for itself.
With the U.S. Navy opting to mount a smaller 3-inch gun on its planned Oliver Hazard Perry-class frigates in the 1970s– a big change from the manned 5-inch guns mounted on the Knox-class frigates that preceded them– the Pentagon went with the Italian “robot gun” design.
A destroyer escort, USS Talbot (DEG-4), in late 1974 had an Italian-produced 76/62C Compact installed on her bow forward of the superstructure in place of the ship’s original 5-inch manned mount which used a design that dated to World War II.
USS Talbot seen circa 1974-75 with an OTO Melara 76/62C Compact installed. (Photos: U.S. Navy History and Heritage Command)
The Naval Systems Division of the FMC Corporation in 1975 won the U.S. contract to build the 76/62C Compact in Pennsylvania under license from OTO Melara and delivered the first American-built model in August 1978. The Navy, which designated the gun the MK 75, went on to install them in 51 Oliver Hazard Perry-class frigates built between 1975 and 1989, along with six Pegasus-class hydrofoil fast attack craft and on the Coast Guard’s 13 new Bear-class cutters that were constructed in the same era.
Likewise, when the Coast Guard’s 12 Vietnam-era Hamilton-class cutters were modernized starting in 1987, they received the MK 75 to replace their outdated 5-inch mounts. The guns were also installed on a series of warships built in the U.S. for overseas customers (Israel, Egypt, Australia, et.al).
The frigates carried the MK 75 atop their superstructure as the bow, the traditional location, was occupied by a missile launcher and its below-deck magazine.
October 2002. USS Sides (FFG 14) fires her 76mm dual-purpose gun at ex-USS Towers (DDG 9) during a SINKEX near San Diego. (Photo: U.S. Navy)
May 2011. The Oliver Hazard Perry-class guided-missile frigate USS Thach (FFG 43) fires its MK-75 76mm mounted gun while underway off the coast of Brazil. (Photo: U.S. Navy)
August 2014. The Oliver Hazard Perry-class guided-missile frigate USS Rodney M. Davis (FFG 60) conducts a live-fire exercise of its MK 75 76mm/62 caliber gun. (Photo: U.S. Navy)
One of the frigates, USS Simpson (FFG-56), part of Surface Action Group Charlie, had the first combat use of the MK 75 in U.S. service when, in April 1988, used the gun to destroy Iranian naval and intelligence facilities on the Sirri oil platform during Operation Praying Mantis.
Another frigate, USS Nicholas (FFG-47)used her MK 75 during Desert Storm in January 1991 to clear Iraqi troops placed on nine oil platforms in the northern Persian Gulf off of occupied Kuwait. As reported at the time, the frigate “fired three shots at each platform to set the range, followed by about 20 rounds of high-explosive shells, ‘for effect.’ The effect was to demolish quickly all the remaining bunkers.”
The speedy hydrofoils, meanwhile, wore their MK 75 as a hood ornament.
As did the Coast Guard cutters.
Coast Guard Cutter Harriet Lane firing a commemorative shot on 30 May 2019 to honor the 158th anniversary of its namesake’s action near Fort Sumter, South Carolina. (Photo: USCG)
The water-cooled barrel, using salt water during the firing process and a freshwater flush from the ship’s onboard supply after the firing ceased, led to often extreme muzzle shots with the intersection of steam and propellant.
The crew of Coast Guard Cutter Northland conducts a live firing of the MK 75 76mm weapons system while underway, on September 20, 2020, in the Atlantic Ocean. (Photo: USCG)
March 2000. The Coast Guard Cutter Tampa’s 76mm gun blasts a projectile at a moving target during live-fire exercises. Participants took turns firing at “robo-ski,” a small, remote-controlled jet ski. Tampa gunners hit the target every time. USCG Photo by ET3 Shane Taylor.
The gun uses a saltwater cooling system and a freshwater cleaning run after firing concludes, seen here on USCGC Escanaba in 2028.
All things come to an end
However, there has been a slow-motion end to this story that started with the retirement of the hydrofoils in 1993, and the frigates losing their MK 75s by 2015 in a series of refits. This left the Navy, who “owns” the installed weapons on Coast Guard cutters, still on the hook for logistics contracts with BAE systems and OTO Melara (now Leonardo) for parts and support.
Those days are gone as the 76/62C is out of production both in the U.S. and Italy, with Leonardo replacing the system in its catalog with the faster-firing (though still with only an 80-round ready magazine) and more stealthy 76/62 Super Rapid (SR) Gun Mount.
Eventually, the Ordnance Shop at the Coast Guard yard took ownership of the MK 75 program and was even tapped to support the guns on frigates and cutters transferred overseas.
Since then, the Hamilton class has all retired and has been transferred overseas and now the Bear class cutters are in the process of being stripped of their MK 75s during refits, and replaced by smaller (albeit currently produced) MK 38 25mm guns. Overseas allies are similarly phasing out the gun.
This brings us to the coda of the Bear-class USCGC Mohawk (WMEC 913) firing her MK 75 for the last time this summer, an event that was held during a gunnery exercise in the Florida Straits. The service said in a press release this week that it was a “significant historical event” as Mohawk was “the last in its class to fire the onboard Mk 75 gun weapon system.”
Coast Guard Cutter Mohawk’s (WMEC 613) Mk 75 weapon system fires, Aug. 16, 2024, during a gunnery exercise in the Florida Straits. Mohawk was the last Famous-class medium endurance cutter to fire the onboard Mk 75 mm gun weapon system as large caliber weapon systems onboard these cutters are being modernized for the service life extension program. (U.S. Coast Guard photo by Ensign Brian Morel)
Perhaps once the mount is phased out for good, the USS Aries Museum, the only preserved U.S. Navy hydrofoil, can pick up one of the old MK 75s to help complete her Cold War profile.
Last week, NOAA announced that they had awarded a contract to Lockheed Martin Aeronautics, based in Georgia, for two specialized C-130J Hercules to become the next generation of hurricane hunter aircraft.
Of course, this will probably lead to a bean counter in D.C. to either push the weather recon mission to NOAA altogether or absorb it into the 53rd WRS– with the latter likely.
The NOAA C-130s will replace the service’s two long-serving WP-3D Orions, nicknamed “Kermit” (N42RF) and “Miss Piggy” (N43RF), which have operated since the mid-1970s. The Navy, which helps support these old birds, is looking to divest its last P-3 platforms, VQ-1’s EP-3E Aries II, in 2025, while VXS-1 operates a handful of NP-3s on research roles, so the writing is on the walls.
“Adding these highly capable C-130J aircraft to our fleet ensures NOAA can continue to provide the public, decision-makers and researchers with accurate, timely and life-saving information about extreme weather events,” said Rear Adm. Chad Cary, director of the NOAA Commissioned Officer Corps and NOAA Marine and Aviation Operations. “NOAA is using our more than 50 years of experience gathering data on hurricanes and other atmospheric phenomena to enhance the capabilities of these specialized new aircraft.”
