Monthly Archives: April 2013

The US Military’s Backpack Atomic

Back in the late 1950s the US military was enamored with using ‘atomics’ as much as possible.  The Navy had nuclear depth charges, the air force had nuclear tipped air-to-air and surface to air missiles to obliterate swarms of Soviet bombers, and the Army even had nuclear artillery shells and recoil-less rifle rounds.

Congressmen loving the W54 as used on the Davy Crocket. I mean who couldn't love a 50-pound nuke!

Congressmen loving the W54 as used on the Davy Crocket. I mean who couldn’t love a 50-pound nuke!

Speaking of which, at this time the W54 warhead was hatched. This was about the smallest US warhead ever used at just 10.75 inches diameter (270 mm), about 15.7 inches long (400 mm), and hefted slightly over 50 pounds (23 kg). It could be variable yielded due to its implosion type of design from anywhere ranging in 10 tons to one kilotons of TNT equivalent.

It was also very dirty–when fired it would produce an almost instantly lethal radiation dosage (in excess of 10,000 rem) within 500 feet (150 m), and a probably fatal dose (around 600 rem) within a quarter-mile (400 m). The W54 was designed by Los Alamos Scientific Laboratory and built by the United States Atomic Energy Commission. Around 400 units were manufactured from 1961 until early 1962. These were given to the USAF who used them as the warhead of a few AIM-26A Falcon AAM and the AGM-45 Walleye ASM’s. The Army used them on the 2-mile range (talk about your balls glowing in the dark!) M-29 Davy Crockett Weapon System, a tactical nuclear recoilless gun for firing the M388 nuclear projectile. Then there was a couple hundred left that were used in a distinctly more…simple..delivery system.

By foot.

Called the MK54 Special Atomic Demolition Munition (SADM), the W54 was attached to a battery-powered code-decoder lock and firing unit, packed inside a waterproof/shockproof case and the whole affair crammed into a very well-padded OD rucksack (the H-912 transport container). This gave a 163-pound overall weight that could be toted by a beefy paratrooper or frogman where it needed to go.

(1965 Sandina Labs Film on its use)

The concept behind the SADM was that it could be paradropped or combat swam behind enemy lines by a 2-3 man team of Green Berets or Navy SEALs (both of which were founded by Kennedy in the early 1960s). Said commandos could plant the device at an enemy arsenal depot, a strategic crossroads or bridge, key stockpile, important factory (the Soviets loved to have everything made at one BIG factory), or in a harbor. Once planted the device could be set to go off on a delay while the troops were extracted by Skyhook, helicopter, small plane, or (in the case of the SEALs) by small boat or submarine offshore.

A view of the interior components of the W45 MADM, showing (from left) the packing container, warhead, code-decoder, and firing unit. The MADM was a similar design to the SADM


A view of the interior components of the W45 MADM, showing (from left) the packing container, warhead, code-decoder, and firing unit. The MADM was a similar design to the SADM

Besides this, more low-speed engineering units could use the SADM to destroy key points in West Germany should 10,000 Warsaw Pact tanks swarmed over the Fulda Gap. It wouldn’t be outside the vein of thought that at least a few (deniable) SADMs were prepositioned overseas in foreign capitals in time of crisis should they be needed.

A SADM on display in New Mexico (inert of course) left is the device housing, right is thebackpack

A SADM on display in New Mexico (inert of course) left is the device housing, right is the backpack

The locked storage suitcase that the SADM rested in when not being hurled out of airplanes, smuggled over the boarder on the back of a yak, or going for a drag by a frogman

The locked storage suitcase that the SADM rested in when not being hurled out of airplanes, smuggled over the border on the back of a yak, or going for a drag by a frogman

The H912 Rucksack. It looks comfy because it HAS to be. Afterall it has 163-pounds of atomic love in it capable of bringing 1-kiloton of party favors to the get together.

The H912 Rucksack. It looks comfy because it HAS to be. Afterall it has 163-pounds of atomic love in it capable of bringing 1-kiloton of party favors to the get together.

They were withdrawn in 1988 and are not currently maintained (probably because they came up with a classified replacement that doesn’t weigh 160-pounds).

Just saying.

Warship Wednesday, April 10 The Last Swedish Parsnip!

Here at LSOZI, we are going to take out every Wednesday for a look at the old steam/diesel navies of the 1859-1946 time period and will profile a different ship each week. – Christopher Eger

Warship Wednesday,  April 10, 2013

Gustav_V_-_Sverige_class_coastal_Ba

Here we see the Swedish Pansarskepp HSvMS Gustav V as she looked in broadside in the 1940s. Pansarskepps ( literally “armored ships” ) was a peculiar design that was popular in the Baltic from about 1900-45. These short, shallow-draft ships could hug the coastline and hide from larger capital ships while carrying big enough guns to be able to brutally bring the pain to any landing ship escorted by a shallow draft light cruiser or destroyer approaching from offshore. Sweden had kept out of wars since Napoleon was around, but she was still very wary of not only Russian and German but British designs on the Baltic. With her neutrality only as good as the ships that could protect it, the country built a series of 15 coastal defense vessels or Pansarskepps from 1888-1918.

nonhybrid-parsnip
And no, they are not commonly referred to as ‘parsnips.’

Here’s a brief rundown:

Svea-class coastal defense ship 3000-3300 tons, 14 kts, 2 x 254mm (10 in) m/85 or m/89 guns
HMS Svea
HMS Thule
HMS Gota

Oden-class coastal defense ship 3445 tons, 17kts, 2 x 254 mm (10 in) m/94
HMS Oden (launched1897)
HMS Niord (1899)
HMS Thor (1898)

Dristigheten-class coastal defense ship
HMS Dristigheten (1900) -3445 t, 16.5kts 2 x 210 mm (8.2 in) m/98

Äran-class coastal defense ship 3,650 tons, 17kts, 2 x 210 mm (8.2 in) m/98
HMS Äran (August 1901) – Stricken 1947
HMS Wasa (September 1901)
HMS Tapperheten (November 1901) – BU 1952
HMS Manligheten (December 1903)
HMS Oscar II (1905) –

Sverige-class coastal defense ship 7,633 tons full load, 23kts,  4x 283 mm (11.1 inch 45 cal.) 8x 152 mm (6 inch 50 cal.)
HMS Sverige (ordered 1912, comm May 1915)
HMS Drottning Victoria (September 1917)
HMS Gustav V (January 1918)

Gustav V in her WWII camo. It was a green Baltic battleship with a white 'coast guard' style racing stripe so that Swedish coastal artillery kept the friendly fire to a minimum.

Gustav V in her WWII camo. It was a green Baltic battleship with a white ‘coast guard’ style racing stripe so that Swedish coastal artillery kept the friendly fire to a minimum.

The Gustav V, as you can see, was the last of the baker’s dozen of these craft to come off the line in Sweden and by all rights, the most advanced of the design. Laid down at Kockums, Malmö (the same company that makes Sweden’s AIP Subs today) on 12/1914, just four months after the outbreak of WWI.

She was launched on 31/1/1918 and finally commissioned in January 1922. She was quite a bit longer than her 1912-designed sister ship and class leader Sverige. This fact, coupled with minor changes to the ship’s armament and major ones to her engineering made Gustav V was the crown jewel of the Swedish fleet from 1922 through 1957.

Note the pre-WWI style of ornate stern work. The US, and other Western navies did away with this around 1909 but the Gustav V, completed in 1922, still retained this classic styling from a more civilized era

Note the pre-WWI style of ornate stern work. The US and other Western navies did away with this around 1909 but the Gustav V, completed in 1922, still retained this classic styling from a more civilized era

She served in WWII and helped keep Sweden neutral even with the large Kriegsmarine and Soviet Navies coming within a very close range on occasion. The Weimar Germany-era Deutschland class was a series of three Panzerschiffe (“armored ships”), better known as Pocket Battleships, which were based in part from lessons learned by the Swedes with the Gustav.

Swedish coastal defense battleship HSwMS Gustav V, using extensive camouflage, a serious tactic used to great extent by the Swedes, especially for air defense

When compared,  the 14500-ton SMS Graf Spee carried six 11-inch and 8x 5.9-inch guns to the 7700-ton Gustav V’s four 11-inch and 8x 5.9-inch guns. The Swedish ship had much heavier armor but the German ship was built to run five knots faster and make round-the-world cruises, something the Swedes had no use for. As a final proof-of-point, the Gustav could float and fight in 20-feet of water whereas the German pocket battleships needed 24 (and a Soviet Gangut class battleship required 30).

The Gus in profile 1930s

The Gus in profile 1930s

So the Swedes had a group of tiny battleships, about the size of a frigate in today’s navies, for almost forty years. The 1938 edition of Jane’s Fighting Ships even lists the Swedish Pansarskepps of the Sverige class as battleships.

Built on hulls that were only about the size of today's frigates, the Gustav carried an armarment larger than any gun armed cruiser. It included four large 11-inch guns and 8 smaller 5.9-inchers.

Built on hulls that were only about the size of today’s frigates, the Gustav carried an armament larger than any gun-armed cruiser. It included four large 11-inch guns and 8 smaller 5.9-inchers.

Well, Gustav lived a quiet life and in 1957 at age 35 was tied up to the pier for the last time– the Soviets had decommissioned the last of their WWI-era Gangut class battleships the year before. Her two sister ships, Sverige and Drottning Victoria were laid up in 1947 and their parts had been used to help Gustav V stay operational for another decade.

But her story was not over. Gustav’s 8x 152 mm (6 inch 50 cal.) Bofors QF guns were removed and mounted around Sweden for use as Coastal Artillery should the Soviets (or Germans, or Norwegians, or British, or whoever feel froggy) and were only retired in the 1980s. The disarmed ship herself was still used as a training hulk and pierside until 1970 when she was scrapped.

The end of the Pansarskepp era.

A few of her guns still remain emplaced around Sweden to this day. While its 1900s tech, these EMP-immune guns could ruin the paintjob of Soviet ships well into the 1980s if needed. The Swedes no longer use these guns, but still have thier breechblocks (just in case)

A few of her guns still remain emplaced around Sweden to this day. While its 1900s tech, these EMP-immune guns could ruin the paint job of Soviet ships well into the 1980s if needed. The Swedes no longer use these guns, but still have their breech-blocks (just in case)

In fact, when Gustav was scrapped, she was arguably the only battleship still ‘in service.’ At the time the US Iowa-class battleships were all in mothballs and had been since the 50s. The British Vanguard was scrapped in 1960 and the Turkish battle-cruiser Yavuz (formerly the Kaiser’s Goeben, launched in 1911) had been struck in 1954 by the Turks and her hulk scrapped in 1973 after an offer to sell her back to Germany was refused.

Guess the Swedes had the last laugh on that one.
swedish parsnip

Specs:
Displacement: 7,239 tonnes standard, 7,755 tonnes full load (some sources list 7633 as FL)
Length: 396.6 ft (120.9 m)
Beam: 18.6 m (61 ft)
Draught: 6.7 m (22.0 ft)

Armour

Belt: 200/150–60 mm (7.9/5.9-2.4 in)
Turret: 8 in. Front, 4 in. Sides, 4 3/8 in Rear
Conning Tower: 175/100–60 mm (6.9 in)
Deck: 1 5/8 in.
Redoubt: 4 in.
Barbettes: 6 in.
Small Turrets: 5 in. Front, 3 in. Sides

Machinery

2 shafts; Westinghouse Geared Turbines (Manufactured by Motala Company) in Gustaf V 22,000 SHP; originally with 12 Yarrow-type coal-fired boilers with (originally) 761-tons bunkerage of coal. The provided a nominal range of 3300-miles. This was seen as plenty for the Baltic region of operations.  In the 1930s half of the ships, 12 boilers were replaced by 2 oil-burning Penhöet type boiler.  This upgrade slightly increased speed and allowed the ship to use both oil and coal for strategic reasons to operate on alternative fuel if the Swedish oil supply was ever cut off). Fuel stowage was 360ts of coal and 273ts of oil after this.

Armament

  • 4x 283 mm (11.1 inch 45 cal.) Bofors guns (2 twin turrets), load in 17 seconds, rated as cramped, dividing partition between guns. These guns could fire a 672.4 lbs. (305 kg) Arrow Nose Shell to  31,700 yards (29,000 m), capable of penetrating 13.5-inches of armor at 6500-yards. These four guns could fire a total of a dozen rounds every minute at targets up to 29-km away.
  • 8x 152 mm (6 inch 50 cal.) Bofors QF guns (1 twin turret superfiring over the forward 11-inch battery, and 6 single turrets, 3 on each beam)
  • 4x 75 mm Bofors AA cannons mounted forward of the rear 11-inch battery
  • 2x 57 mm short-barreled Bofors cannons (6 pdr.)
  • 9x 6,5 mm MG
  • 2x 457 mm (18 in) TT

Armament after modernization (late 1930´ts to WW-II)

The underwater torpedo tubes were removed and the underwater torpedo room was converted into an artillery central plotting room to serve the installation of modern range meters and fire control equipment for heavy, secondary, and AA-gunnery.

All small gunnery and 2x152mm (6 inch 50 cal. ) were removed and replaced with modern Bofors 75mm, 40mm, and 20mm Anti-aircraft gunnery. (2 x 2 – 25mm/58, 4 x 1 – 25mm/58; + 1 x 2 – 40mm/56cal M32, 2 x 2 – 20mm/66cal M40, 4 x 1 – 20mm/66cal M40

The range of the 281 mm (11 inch) main-artillery was upgraded by new ‘Arrow Point’ ammunition. An upgrade at the time to the guns that would have enabled them to fire to 35-degrees elevation (from the 1912-era 25-degrees) which would have added some 10,000-m to their range, was canceled.

Complement  450 after reconstruction

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A Conversation between Gun-owners in 2063

alg-cobble-hill-coffee-shop-cover

Leonard and Colin sat at the counter and waited on their breakfast to be served up. As they waited, Colin tapped the screen of his tablet and showed his buddy an article that just popped up.

The headline flashed, “Senate to Debate Gun Control Act of 2063 Today.”

Colin shrugged, “What else is there to debate? The vultures have already taken everything good away.”

Leonard nodded, “I remember when I was a kid back in 2013, and my Pop and I stood in line at Big Box one morning for two hours to buy any 5.56 ammo they had.”

“I can’t remember when it was that easy. You are a few years older than me.” Colin shifted on his stool. “Speaking of which, got any .22 to spare? My club is out.”

The days of walking into a store and buying ammunition over the counter had come to a screeching halt with the Ammunition Regulations of the 2030s. It seemed that some nut bought a few boxes of shotgun shells at a local store and then went to a school to settle a score with the imaginary demons in his head. To protect the kids now, the only way to get your ammunition was through membership in your local (highly regulated) shooting club…..

Read the rest in my column at GUNS.com

The Ruger Service Six Series: Wheelgun Muscle, 70s style

Let’s take a time trip back to 1972. Roberta Flack and Don Mclean are on the radio, The Godfather has just been released, a gallon of gas (leaded) cost 36-cents, and almost every cop in the land carries a revolver. It was in this climate that Bill Ruger decided to introduce a line of solid-frame double action revolvers. These guns would go down in history as the Ruger ‘Six’ series.

Read the rest in my column at GUNS.com

Security_Six

Lever Action Shotguns: Two great flavors that taste weird together

Back in 1887 John Moses Browning, the Da Vinci of small arms development, was doing some work for Winchester. At the time, that company was primarily known for lever action rifles but, they wanted to break into the shotgun market and approached Browning to design one.  He was allowed to use any action he wanted—as long as it was lever.
Read the rest in my column at GUNS.com

winchester 1887s

The Appleseed Marlin 795 Liberty Training Rifle

Marksmanship is a dying art in the United States that has been a staple of our country since the Revolutionary War. A group of grassroots volunteers known as the RWVA has teamed up with Marlin to produce a special model rifle to help change that.

Around the country every year, at shooting ranges from coast to coast, hundreds of Project Appleseed events are held that are open to the public. At these events, students of all ages learn to shoot a 20″ target out to 500 yards or a milk jug at 250 yards, using a standard, rack grade rifle, surplus ammo, iron sights, from field positions. These are put on by the RWVA.

The Revolutionary War Veterans Association (RWVA), a group of volunteer second amendment true believers that advocate training of rifle marksmanship and our early American heritage. While they allow any shooter with any rifle to come and train, it’s recommended that a 22LR rifle with good iron sights and a sling be used. This brings us to the Marlin 795.

Read the rest in my article at Marlin Forums

appleseed 795

Odd Russian Music Video….lots of blood

Great music video for Biting Elbows (a russian punk rock group that sounds like a cross between Black Flag and Rancid) Entitled “Bad Motherf*ucker”. While its totally implausible, nice first person action scenes that include a Gsh-18 pistol in action (but bad teacupping!), some AK love, a running fight through a MIG graveyard, etc. Probably NSFW warning on this one….

The Grendel Pistols: The forgotten polymers (and the birth of Kel-tec)

Anyone versed in guns is quick to point out that if you want a lightweight compact pistol, odds are you want something with a lot of polymer in its construction. Today when we say small polymer pistol, most people think Kahr, Kel-Tec, Ruger and maybe even Glock with their new Model 30s.

Few however remember the humble, yet innovative Grendel pistols—guns that contributed greatly to what we now accept as commonplace in the compact polymer pistol world.

Read the rest in my column at GUNS.com

grendel p10

The ZIP22 an Answer in Search of a Question

With all of the ergonomics of a nice staple gun but without the quality, there is a new player on the compact/oddball 22LR market.

The ZiP22

According to US Firearms website on the ZiP, it was designed because, “we believe consumers just want to pull the trigger as affordably as they can . . . all day long.”

With that, the gun is a very forward-looking design that is almost overly safe to fire. Something like this shows potential for training safe firearms use for new shooters, or an affordable plinker for informal target shooting, survival, camping, or pest control applications.

Kind of in the same vein as the Boberg series of pistols, the ZiP22 is a bullpup-style handgun in which the trigger guard is located well forward of the frame. As such, it does not have a pistol grip that you are used to, or a slide that cycles over the shooter’s wrist. This means that the gun, while having a very respectable 5.25-inch long barrel, is still just under 6-inches overall length, which is very handy.

Read the rest in my column at Firearms Talk.com

zp with extended mag

Spotted, LCS and JHSV Building Together

Was passing through Mobile and saw this outside of Austal’s docks. The 418-foot long Independence-class (PCU) USS Coronado (LCS-4) and the 337-foot long Spearhead class Joint High Speed Vessel (JHSV) USNS Choctaw County (JHSV-2) which was originally ordered as the US Army Ship Vigilant.

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Both are under construction.

Coronado is set to commission this year and will be the second LCS to feature a high-speed trimaran hull and will be designed to (hopefully) defeat littoral threats and provide access in coastal waters for missions such as mine hunting, naval special warfare support, anti-submarine warfare and surface warfare.

DSCN4491
Specs when finished of Coronado :
Displacement:     2,176 tons light, 2,784 tons full, 608 tons deadweight
Length:     127.4 m (418 ft)
Beam:     31.6 m (104 ft)
Draft:     13 ft (3.96 m)
Propulsion:     2× gas turbines, 2× diesel, 4× waterjets, retractable Azimuth thruster, 4× diesel generators
Speed:     40+ knots, 47 knots (54 mph; 87 km/h) sprint
Range:     4,300 nm at 20+ knots
Capacity:     210 tonnes
Complement:     40 core crew (8 officers, 32 enlisted) plus up to 35 mission crew
Sensors and
processing systems:
Sea Giraffe 3D Surface/Air RADAR
Bridgemaster-E Navigational RADAR
AN/KAX-2 EO/IR sensor for GFC
Electronic warfare
& decoys:
EDO ES-3601 ESM
4× SRBOC rapid bloom chaff launchers
Armament:
BAE Systems Mk 110 57 mm gun
4× .50-cal guns (2 aft, 2 forward)
Evolved SeaRAM 11 cell missile launcher
modular Mission modules
Aircraft carried:
2× MH-60R/S Seahawks
MQ-8 Fire Scout

DSCN4492
The JHSV was originally ordered by the US Army (yes, they have ships too)  to transport U.S. Army and U.S. Marine Corps company-sized units with their vehicles to forward areas ‘intratheather’. This is soft power” missions — responding to natural disasters, providing humanitarian assistance, conducting port visits and training partner military forces, among others. Its based on the Hawaiian Superferry. Since its built to commercial standards (its aluminum), manned by civilians(operated by the Military Sealift Command -MSC), has neither a well deck nor a landing ship bow ramp, and is unarmed (well there are four mounts for M2/Mk19/M240 style crewserved weapons if needed), its not capable of making ampibious assaults on hostile beaches. However it IS capable of everything but and the idea is that it will free up legit Ampibs for that purpose while it handles the light duty ‘operations other than war’ stuff in what is termed today as ‘permissive environments’. Of course it a situation like off the Somali coast, it could be used with CRRC type rubber boats with marines aboard, or SWCC guys in fast boats with frogmen.

But then again, look at what happened to the civilian crewed and unarmed RFA Sir Tristain and RFA Sir Galahad (both the same general size as the JHSV) in the Falklands . Hopefully the big blue will keep these JHSVs out of harms way as a lesson from 1982.

Specs when finished of USNS Choctaw County (JHSV-2)
Tonnage:     1,515 tonnes
Length:     103.0 m (337 ft 11 in)
Beam:     28.5 m (93 ft 6 in)
Draft:     3.83 m (12 ft 7 in) — that’s pretty shallow
Can turn in an 86 foot diameter
Propulsion:     Four MTU 20V8000 M71L diesel engines with Four ZF 60000NR2H reduction gears (waterjets, not props)
Speed:     43 knots balls out. (35 when fully loaded)
Range = 1200 nm
Troop Capacity = 312 seated airline style seats and 144 berths that can be rotated for long trips
Weight/cargo Capacity = 635 tons in a 20,053 square feet cargo area which could carry 280 cars, Abrams tanks, or 6 shipping containers with a loading ramp that can support the M1.
Crew = 22 MSC civilian mariners plus 17 USN commo/support
Cost = $250M each, $2.5B program
Aircraft carried: landing pad for upto CH-53 heavy-lift helicopter, ondeck storage space for HH-60 sized helicopter.

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