Tenmenbak

B-24 Liberator of the 15th USAAF | December 17, 1944

SK | EN

Quick Facts

Who: Ten-man crew of the 15th USAAF
What: B-24J Liberator Tenmenbak, serial number 42-51324
When: December 17, 1944
Where: Kamenická Valley near Omšenie, close to Trenčianske Teplice, Slovakia
Why: Aircraft damaged during a bombing mission and subsequently attacked by German fighters

The Last Mission of Tenmenbak

On Sunday, December 17, 1944, the 15th USAAF launched a major bombing operation against German oil facilities in Upper Silesia. More than 500 American bombers, escorted by hundreds of fighters, attacked targets including the industrial complexes at Blechhammer and Odertal. German fighters intercepted the American formations over Moravia, triggering a major aerial battle known as Bloody Sunday, one of the largest air battles over occupied Czechoslovakia.

Among the 231 B-24 Liberators assigned to attack Odertal was an aircraft with serial number 42-51324. It was a B-24J Liberator assigned to the 764th Bomb Squadron, 461st Bomb Group (Heavy), 15th USAAF. Its home base was Torretta airfield in Italy.

The aircraft had already completed dozens of combat missions and originally carried the name Paulette. Its new crew, led by Second Lieutenant Kenneth B. Smith, renamed it Ten Men Bak, a phonetic rendering of the phrase "Ten Men Back." The name expressed the crew’s hope that all ten men would return safely from their missions. The crew had joined the squadron on November 29, 1944, and the December 17 flight was their first combat mission together.

During the flight, the turbocharger on engine No. 3 failed. At 11:23 a.m., the aircraft fell behind the bomber formation over Slovakia. Smith turned east, hoping to reach the German-Soviet front line. At approximately 11:50 a.m., German Fw 190 fighters from II./JG 300 attacked the bomber.

A 20 mm shell struck the aircraft behind engine No. 2, the inner engine on the left wing, and started a fire. The bomber sustained severe damage, and engine No. 3 subsequently failed as well. Corporal Roland W. Morin, who was manning the ventral ball turret, suffered a fatal wound.

Smith attempted to jettison the bombs, but damage to the hydraulic system had jammed the bomb-bay doors. Realising that the aircraft could not be saved, he ordered the crew to abandon it. The airmen escaped one by one by parachute. Smith remained aboard until last. When the left wing tore away, the bomber plunged toward the ground. Smith managed to bail out and open his parachute only moments before impact.

The wreckage came down in the forested Kamenická Valley near Omšenie, close to Trenčianske Teplice. Corporal Roland W. Morin was the only fatality of the encounter with the enemy. German soldiers took his body to Trenčín, where he was buried. After the war, his remains were transferred to an American military cemetery in France.

The other nine crew members survived the crash. Most were captured by German forces and became prisoners of war. Co-pilot Chester H. Rudel suffered a severe spinal injury when his parachute became caught in the trees. Charles F. Foss later lost part of his arm. Edwin A. Burkhardt evaded capture, hid in the mountains and joined Slovak partisans. In March 1945, he reached Soviet forces with them and eventually returned to American forces in Italy. All nine survivors lived to see the end of the war.

The loss of the aircraft was documented in Missing Air Crew Report (MACR) No. 10683. The story of Tenmenbak preserves not only the history of a major air operation, but also the individual experiences of the airmen whose wartime journey brought them to what is now Slovakia.

The Crew of Tenmenbak

The aircraft carried ten American airmen. Each crew member’s profile includes available birth and death dates and the U.S. state associated with him.

2nd Lt.

Kenneth B. Smith

Pilot
February 18, 1921 – March 11, 2003
Indiana (IN)
Prisoner of war
2nd Lt.

Chester H. Rudel

Co-pilot
September 29, 1918 – July 14, 1986
North Dakota (ND)
Prisoner of war; suffered a severe spinal injury
2nd Lt.

Frank V. Hokr

Navigator
August 1, 1924 – November 26, 2019
Illinois (IL)
Prisoner of war
2nd Lt.

Harry D. Edmiston

Bombardier
December 4, 1919 – February 10, 1985
Texas (TX)
Prisoner of war
Cpl.

Charles F. Foss

Right waist gunner
February 8, 1925 – November 6, 2010
Maine (ME)
Prisoner of war; later lost part of his arm
Cpl.

Homer E. Hymbaugh

Left waist gunner
December 11, 1920 – August 3, 1990
Illinois (IL)
Prisoner of war
Cpl.

Roland W. Morin

Ball turret gunner
January 10, 1922 – December 17, 1944
Rhode Island (RI)
Fatally wounded during the attack; died in the crash
Cpl.

Robert T. Trumpy

Top turret gunner
March 16, 1924 – October 23, 2010
Illinois (IL)
Prisoner of war
S/Sgt.

Urbain H. Granger

Tail gunner
February 12, 1918 – April 23, 2002
Illinois (IL)
Prisoner of war
Cpl.

Edwin A. Burkhardt

Nose gunner
April 14, 1923 – April 4, 2011
Pennsylvania (PA)
Evaded capture and joined Slovak partisans

History of the Memorial Site

The memorial site in Kamenická Valley near Omšenie commemorates the crew of the American B-24J Liberator Tenmenbak, which crashed here on December 17, 1944, following an aerial engagement with German fighters. Its story connects the communities of Omšenie and Trenčianske Teplice with the people who chose to preserve the memory of the American airmen long after the end of World War II.

The memorial was established in September 1994. Those credited with its creation were Peter Modranský, Alojz Malo, Milan Hrušovský, Peter Čížik, Pavol Dorušinec, Anton Psotný, Michal Hanuščin, Ondrej Bajzík, Filip Bednárik, Anton Vašíček, Ľuboš Modranský, Jozef Krajíček, Juraj Rajninec, Július Matuščin and Ladislav Matuščin. Financial support was provided by the local organisation of SDSS in Trenčianske Teplice. The memorial was consecrated by the Roman Catholic parish office in Trenčianska Teplá.

A further renovation took place in November 2008. The work was supported and funded by the Municipal Office of Trenčianske Teplice, the Ronald Reagan Conservative Club and the SDKÚ-DS councillors’ group on the Trenčianske Teplice Municipal Council.

A particularly significant moment in the memorial’s history came in August 2000, when five of the six crew members still living at the time visited Slovakia: Kenneth B. Smith, Robert T. Trumpy, Charles F. Foss, Frank V. Hokr and Edwin A. Burkhardt. Their visit and return to the crash site were made possible through the efforts of Gino Dinucci. The reunion gave the veterans an opportunity to honour Roland W. Morin and revisit the events of December 1944.

The crew’s story and their visit to Slovakia subsequently inspired a book entitled Tenmenbak and a short documentary film. These works preserve the airmen’s memories and personal accounts of the mission, the crash, captivity and the assistance some received from Slovak civilians and partisans.

The history of the memorial is also a story of continued care for a place that matters to the local community and to the families of the American airmen. From its establishment in 1994, through the renovation in 2008 and the redevelopment in 2026, the site has evolved while retaining its purpose: to preserve the names and stories of the men whose wartime journey brought them to Slovakia.

Memorial Renovation in 2026

The 2026 renovation was initiated by the U.S. Embassy in Slovakia, which entrusted Pavol Horňák with its implementation. Through cooperation with the City of Trenčianske Teplice and Spirit of America, the memorial site underwent a comprehensive, ground-up renovation.

The renewed site features a new cross and a new wooden palisade with ten beams, one for each member of the crew. Each beam bears a nameplate commemorating an airman. A new information-panel stand and panel have also been installed to explain the historical circumstances of the crash and the crew’s fate. The memorial area has been landscaped and covered with white decorative gravel.

The original propeller blades from the bomber were carefully restored and repainted, preserving them as historical remains of the aircraft. The renovation thus combines new memorial features with authentic parts of the machine that crashed in the valley in December 1944.

Pavol Horňák would like to express his heartfelt thanks to his father, Ján Horňák; his friend Alojz Šivecký from the team at the Aviation Museum in Košice; and the employees of the Technical Services of the City of Trenčianske Teplice for their help and cooperation throughout the project.

The renovated memorial will be formally unveiled on November 10, 2026. It will continue to honour all ten members of the crew, especially Roland W. Morin, and acknowledge everyone who has helped preserve their memory.

Location

The memorial is located in Kamenická Valley near Omšenie, close to Trenčianske Teplice, near the site where the American B-24J Liberator Tenmenbak crashed on December 17, 1944.

Help Preserve Historical Memory

Do you have photographs, documents, memories, family information or other historical material relating to the B-24 Tenmenbak, its crew, the crash near Trenčianske Teplice, or other Allied airmen connected with present-day Slovakia?

We welcome any additional historical information that can help document and preserve these wartime stories for future generations.

Contact the Project