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Here at LSOZI, we take a break every Wednesday to explore the old steam/diesel navies of the 1833-1954 period, profiling a different ship each week. These ships have a life, a tale all their own, which sometimes takes them to the strangest places.- Christopher Eger

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Warship Wednesday 7 January 2026: Wilbur’s Beachcombing

Above we see the modified Flower (Honesty) class frigate Prasae of the Royal Thai Navy aground behind enemy lines on the Korean east coast, some 75 years ago this week, in January 1951. Several U.N. personnel are standing on the beach near a boat, surveying the near-hopeless situation. An LCVP is also stranded just inshore of the frigate. Note ice on the shore and on the seaward side of the ship.

The hard-luck frigate may have been a loss, but all 111 of her survivors were all successfully plucked off the snow-covered beach by one intrepid “silver eagle” aviator and his primitive eggbeater.

Albeit slowly.

Amid a blizzard.

And under near constant enemy fire.

Meet Betony & Sind

Our subject started life as the Royal Navy’s Flower-class corvette HMS Betony (K274), ordered 8 December 1941– the day of the first Japanese attacks on British Hong Kong and other possessions in the Pacific, kicking off a whole new war.

Laid down 26 September 1942 at Alexander Hall and Sons in Aberdeen as Yard No. 687, the future Betony launched on 22 April 1943 and commissioned on 31 August 1943.

Her inaugural commander was the long-serving Lt. Nicholas Bryan John Stapleton, RD, RNR– who formerly was skipper of the Flower-class sister HMS Amaranthus (K 17), and before that the ASW whaler HMT Southern Pride (K 249).

WWII Service

Our vessel suffered her first loss, with Act/Petty Officer Hubert M. Jones, P/SSX 20752, of her company listed as “died of wounds” on 28 November 1943 without further elaboration.

She was soon on convoy runs, tagging along with OS.59/ KMS.33 out of Liverpool for two weeks before 1943 was out.

After further workups in Scotland and a deployment to the Eastern Fleet at Trincomalee in early 1944, Stapleton handed command of the new Betony over to T/Lt. Percy Ellis Croisdale Pickles, RNVR, on 20 October 1944. While in the Indian Ocean, she performed escort duties for a dozen slow convoys on the CJ (Calcutta to Colombo) and BM/MB (Bombay to Colombo) runs between February and October 1944.

She was loaned to the Royal Indian Navy in January 1945 and assigned to the hardscrabble Burma Coast Escort Force, operating alongside sistership corvettes HMIS Assam, HMS Meadowsweet, and HMS Tulip; the River-class frigates HMS Taff, Shiel, Lossie, Deveron, Test, and Nadder; and the old Town-class destroyers HMS Sennent (ex-USCGC Champlain) and Lulworth (ex-USCGC Chelan) out of Colombo.

When the war was all but over, Betony was officially commissioned on 24 August 1945 into the RIN as HMIS Sind, keeping her same pennant number (K274). Her only “Indian” skipper was T/A/Lt.Cdr. Leonard George Prowse, RINVR, formerly commander of the armed yacht HMS Rion (FY 024), who assumed command in March 1945.

With the corvette suffering from engine troubles, she was nominated for disposal and paid off on 17 May 1946

Bangkok Bound

Thailand had a winding path during WWII. Having fought in 1940-41 with the Vichy French over Cambodia (some things never change!), the country claimed neutrality until a near-bloodless “invasion” by Japan in December 1941, after which it entered into an outright military alliance that only ended post-VJ Day. Ceding territories its troops had seized in Burma and Malaya back to Britain and in Cambodia back to France under an American-brokered agreement in 1946, the country became the 55th nation to join the UN in December 1946 and swung more or less to the West.

This opened the country to military aid, which included receiving two surplus former RIN corvettes from Britain– ex-HMS Burnet/HMIS Gondwana (K 348) and our ex-HMS Betony/HMIS Sind on 15 May 1947. They were given a short refit and recommissioned into the Thai fleet as the frigates HTMS Bangpakong and HTMS Prasae, respectively.

The British also transferred the humble 1,000-ton Algerine-class minesweeper HMS Minstrel (J 445), which became HTMS Phosamton (MSC-451).

The turnover ceremony was held in the naval dockyard of Singapore.

Although third-hand, the two surplus corvettes/frigates and the minesweeper were much appreciated and joined a Thai fleet that included the quaint but decrepit Thonburi-class coastal defense ship HTMS Sri Ayudhya (2,350-tons, 253 ft oal, 15 knots, 4×8″/50s, 4×3″/50s) whose sister had been sunk by the French in 1940, the 1,400-ton Japanese-built sloop HTMS Maeklong (which doubled as the royal yacht and naval cadet training ship), seven remaining pre-war Italian-built 300-ton Trad-class torpedo boats, the two old Armstrong-built Rattanakosindra-class gunboats (800 tons, 174 feet, 2×6″, 12 knots), four long-laid-up Japanese-built Matchanu-class costal submarines, and a handful of old coasters, dispatch, and survey vessels.

Later in 1947, the U.S. transferred three surplus PC-461-class 173-foot subchasers: HTMS Sarasin (ex USS PC-495), HTMS Thayanchon (ex USS PC-575), and HTMS Khamronsin (USS PC-609); and two LSM-1 class landing craft (ex USS LSM-333 and 338), further modernizing the Thai fleet, which by 1950 numbered 1,100 officers and 10,000 ratings.

Things were looking up.

Korea

In the wake of the Korean War in June 1950, Thailand was the first Asian nation (besides the exiled KMT on Taiwan, which is a whole ‘nother story) to offer ground troops to the UN Force. Before the end of the war, the anti-Chinese Prime Minister (former Field Marshal) Plaek Pibulsonggram wholeheartedly contributed over 11,700 ground troops (soon reequipped with U.S. uniforms and small arms), 40,000 tons of rice, and both of the country’s new frigates to the effort.

A newly formed unit of picked men, the 21st Infantry Regiment, Queen’s Guard (Thahan Suea Rachini), was drawn from across the Army.

The two frigates, each with a picked crew of 110 officers and men, were made ready by early October 1950, and they would escort the first battalion of the Thai Army to Korea, with the latter carried on the old Japanese-built transport coaster HTMS Sichang, and the chartered merchant ship Hertamersk.

Prasae’s skipper was Prince (CDR) Uthaichalermlab Wutthichai, 35, who had learned his trade in England and had pinned on his lieutenant bars in 1938 before serving in WWII, and earning the Tritaphon Mongkut Thai among other decorations. Prince Wutthichai, the senior officer afloat, became the commodore of the little Thai squadron headed to Korea.

Some 307 Thai Navy personnel and ~1,200 troops left Thailand’s Khlong Toei port aboard the four ships on 22 October 1950, headed north. They arrived in Pusan on 7 November.

Once attached to the UN Forces on 10 November, the two Thai frigates were given a short overhaul in Japan, which included updated sonar and radar suites, then tasked for a month under CTF-95 as guard ships for the entrance to the naval roads at Sasebo, Japan, with Prasae on the morning shift and Bangpakong overnight.

Then came a more kinetic assignment.

In early January 1951, Prasae and Bangpakong were under Task Force 77 orders on the gun line off the east coast of Korea near the 38th parallel, providing fire support missions to troops ashore with their single 4-inch BL Mk.IXs, steaming with a destroyer force including USS Wallace L. Lind (DD-703) as part of the East Coast Blockading and Patrol Task Group (TG 95.2).

The first shelling operation on North Korea’s east coast by the Thai Navy began on 3 January, firing along the coast between latitudes 38 and 39 degrees North, between the cities of Changjon and Yangyang. On 5-6 January, shelling of railway stations, transportation routes, and military structures in the Chodo area was carried out.

Then came a blizzard that was so severe that it grounded carrier and most fixed wing sorties between 6 and 11 January and filled central Korea with snow showers, haze, smoke, low clouds, 30 knot winds, and fog, dropping visibility to zero and bottoming out thermometers, Prasae drifted into the shallows on the cape of Kisamun-dan in Hyeonbuk-myeon, Yangyang, Gangwon, North Korea. She was hard aground, at a 60-degree angle to the shoreline, just 200 yards offshore.

She was also in enemy held-territory some 16 klicks north of the 38th Parallel.

The Lewis S. Parks Papers in the Harry S. Truman Library contain dozens of Navy images of the rescue operation, digitized (low rez) in the National Archives. They were taken in most cases by U.S. Navy LT William DuCoing, presumably of the USS Manchester, who “witnessed several enemy soldiers killed while on this beach.”

The alert went out, and Task Force 77 sprang into action to save the stranded Thai warship and her crew.

The salvage operation included the old Gleaves-class destroyer/minesweeper USS Endicott (DMS-35), which tried to send in LCVPs to recover marooned Thai sailors, joined by Prasae’s sister Bangpakong, whose small boats attempted to approach the beach without success due to fierce surf and rollers.

Endicott’s sisters USS Thompson (DMS-38), Carmick (DMS-33), and Doyle (DMS-34) moved in to assist and clear lanes for mines. De-beaching lines were attempted by Comstock (LSD-19) and Bolster (ARS-38), which also proved unsuccessful.

Endicott rescued three Thai sailors after they were washed overboard from one of the pulling boats, but unfortunately, a fourth one drowned. Endicott’s doctor and chief corpsman also went ashore to care for casualties until they could be evacuated.

With carrier aircraft grounded due to the poor flying conditions, fire support to keep interloping Chicom and Nork troops at bay was provided by the Cleveland-class light cruiser USS Manchester (CL-83) and her companion destroyers USS English (DD-696), Borie (DD-704), Hank (DD-702), and Forrest Royal (DD-872).

Truman got a White House briefing on Prasae at least ten times during this period as part of his daily situation reports on the war.

Early attempts at using helicopters in the rescue proved fatal.

As noted by NHHC:

On 8 January, a Sikorsky H03S1 of Helicopter Utility Squadron TWO (HU-2) embarked on the carrier USS Valley Forge, maneuvered near Prasae when a rogue wave caused the ship to roll. The helicopter’s rotors hit the mast, causing the mast to collapse and the helicopter to crash in flames, which then ignited 20mm shells, causing more damage to the ship. The crew put the fire out in under 30 minutes. Somewhat miraculously, the helicopter pilot, Lieutenant (junior grade) John W. Thornton, his aircrewman, and a salvage officer all survived the crash, but another Thai sailor drowned.

Manchester was lucky enough to have a replacement Sikorsky HO3S-1 (H-5/S-51) helicopter (“UP27” BuNo 122715) detached from Helicopter Utility Squadron 1 (HU-1) aboard USS Philippine Sea.

Nicknamed Clementine, she was piloted by the one and only Chief Aviation Structural Mechanic, ADC (Aviation Pilot), Duane Wilbur Thorin (NSN: 3165995). An enlisted pilot who joined the Navy in 1939 at age 19 and earned his silver NAP wings after finishing flight training in 1943. The blonde-haired Thorin– eighth son of Swedish emigrants to Nebraska– moved into rotary-wing billets after the war. He had already earned something of a swashbuckling reputation, shuttling out on one-man missions to rescue downed fliers in his contraption, typically while clad in his trademark non-regulation green headgear.

Clementine wasn’t much, with her 450hp R-985 Wasp Junior only enabling her to lift about 900 pounds of useful cargo (pilot included) off the ground on a full tank of gas in good weather, but she was on hand and had enough range to shuttle back and forth from Prasae to Manchester.

With the likelihood that the grounded ship could be pulled off while under fire dropping to zero, and hypothermia setting in with the survivors who were running out of supplies and battling below-zero temperatures overnight, the order went to Clementine to pull them off, typically just two or three men at a time.

On inbound flights to Prasae, Thorin and Clementine dropped off a small medical team under Doc Myers, and a security team under LT Taylor to help guard and mark the LZ for future flights. At one point, they exchanged long-distance shots with a four-man enemy patrol just over the dunes.

They also brought blankets and some hot chow.

Meanwhile, CDR Wutthichai, the stricken ship’s skipper, directed his navigators and gunners to destroy anything that could be useful to the enemy, doused the ship with oil and placed gunpowder in various locations, and then left the ship last.

Wutthichai was likewise the final man that Clementine pulled from the beach.

Over the three days between 11 and 13 January, Chief Thorin and Clementine pulled 126 men from Prasae in 40 sorties, 111 Thai and 15 USN, bringing them all safely to Manchester’s little wooden helo deck.

Of Prasae’s crew, two were killed in the grounding and drawn-out rescue under fire: Petty Officer 2nd Class Chan Muang-am and Petty Officer 2nd Class Phuan Phonsayam, both later posthumously promoted to CPO. Twenty-seven of her crew were injured, with a mixture of frostbite and shrapnel as the cause of wounds.

The unmanned and wrecked hulk of Prasae was destroyed by naval gunfire from USS English on 13 January, via 50 rounds of 5-inch common.

Those not hospitalized in Japan were soon shipped aboard Bangpakong.

As for her sister Bangpakong (ex-Burnet, ex-Gondwana), she remained in Korean service until February 1952 and in Thai service until stricken in 1984.

Epilogue

With the Thai government still eager to contribute to the effort in Korea, the U.S. Navy quickly sold them two laid-up Tacoma-class patrol frigates, late of the Soviet Red Banner Pacific Fleet via Lend-Lease, the USS Glendale (PF-36) and USS Gallup (PF-47), for the princely sum of $861,940.

Transferred in October 1951 at Yokosuka, Glendale became the Thai Navy ship Tachin. Gallup became the Thai Navy ship Prasae. Along with them came five more PC-461s, two LCIs, and three surplus SC-1627-class 119-foot subchasers, these smaller vessels slated for immediate service in Thai coastal waters while the frigates remained deployed.

Following a workup in Japanese waters, the new Prasae and Tachin departed Sasebo on 12 January 1952 in company with sistership USS Bisbee (PF 46) on their first escort mission since their purchase by and addition to the Thailand Navy.

The new pair of frigates served for the duration of the Korean War and well into the tense shift into peace, rotating crews with fresh ones shipped in from Thailand at least twice. Both departed South Korea for their first trip home on 22 January 1956, nearly three years after the shooting had stopped! Some 2,485 Thai naval personnel served in Korean waters, with 1,679 of them receiving UN service medals. Two Thai naval personnel were also awarded U.S. Bronze stars.

In the course of Thailand’s involvement in the Korean War, the country suffered 1,273 casualties, comprising 129 killed in action (including two Navy), 1,139 wounded, and 5 missing. The country maintained a company-sized infantry force in the ROK to watch the DMZ until July 1972. They continue to contribute two officers and 13 enlisted to the more or less permanent UNC Military Armistice Commission-Secretariat (UNCMAC-S) in South Korea today.

Speaking of South Korea today, with the border shifting slightly to the line of contact in place when the armistice was signed, the cape that Praese was grounded on has been part of the ROK since 1953, and these days is often referred to as “38th Parallel Beach,” a popular surfing spot (in the summer).

Chief Thorin fully earned a Distinguished Flying Cross for his rescue efforts on the grounded Prasae, then added a Gold Star to his DFC in November 1951 while flying from the cramped deck of the cruiser USS Toledo (CA-133) to successfully pluck a downed pilot trapped some 60 miles behind the enemy’s lines. He added a second Gold Star to his DFC in January 1952 while operating from USS Rochester (CV-124) for picking up two downed pilots just offshore of Hungnam– while under small arms fire from the edge of the beach– in two separate trips.

Just six months after the rescue of Prasae’s crew, Clementine, the helicopter used so successfully, UP 27 (BuNo. 122715), went missing on a rescue mission near Kosong, Korea, with her pilot killed and crewman taken prisoner. Luckily, Chief Thorin was not at the controls that day.

Thorin’s luck ran out in February 1952 when flying a whirlybird from Rochester on a mission to rescue an injured and critically ill Skyraider pilot off Valley Forge— LT(j.g) Harry Ettenger of VC-35– who was down behind enemy lines and being harbored by anti-Communist North Korean partisans. The mission, over known enemy anti-aircraft positions near Kojo, Korea, was almost successful, but at the last minute, Thorin’s helicopter crashed due to mechanical problems. Taken prisoner along with Ettenger, he was a resident of POW Camp 2 until his release during Operation Big Switch on 2 September 1953. He earned a Silver Star for the mission (recommended for the Navy Cross), adding to his three DFCs.

Thorin made over 130 rescues in hostile territory during the Korean War, not counting those from Prasae.

Thorin was used as the basis for CPO (NAP) Mike Forney, the enlisted CSAR pilot in The Bridges at Toko-Ri by Pulitzer Prize winner James Michener. Icon Mickey Rooney portrayed him in the movie adaptation, which was filmed in Technicolor in 1954 aboard the USS Oriskany (CV-34). Real UP-coded H-5s were used, and Rooney portrayed his based-on-a-real-story character well, albeit with a green tophat and scarf rather than Thorin’s more understated green ballcap.

That’s Hollywood for you.

Meminisse est ad Vivificandum – To Remember is to Keep Alive

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