United States Air Force - USAF (since 1947)

Few minutes after takeoff from Kabinburi Airstrip, the engine failed. The aircraft stalled and crashed in a wooded area and was destroyed. Both pilots were injured.

Shortly after takeoff from Saigon-Tan Son Nhat Airport, while climbing, the crew informed ground about the failure of the left engine and elected to return for a safe landing. On final approach, as he was unable to lower the landing gear, the captain decided to make a go-around and completed a circuit. While on a second approach, the airplane went out of control and crashed in a rice paddy field located few km from the runway threshold. All 25 passengers and 6 crew members were killed. The left propeller was feathered at the time of impact.
Crew:
Cpt Karl David Sobolik,
Lt Col William Affley Lynch,
Cpt Carroll Gene Hogeman,
Cpt John Richard Humphrey,
Cpt Joe H. Trickey,
S/Sgt Alan Ralph Steffen.

The aircraft was engaged in a paradropping mission, carrying 35 paratroopers and two pilots. Shortly after takeoff from Dầu Tiếng Airport, while in initial climb, the airplane was hit by enemy fire. Hydraulic lines were ruptured and the fluid caught fire. The crew was able to make a circuit to return for an emergency belly landing. The airplane belly landed and came to rest onto runway. All 37 occupants were slightly injured and the aircraft was damaged beyond repair.

The crew departed Barksdale AFB, Louisiana, at 1500LT on a training flight to Kenneth Ingalls Sawyer AFB (K. I. Sawyer AFB), Wisconsin. The goal of the mission was to test the performances of a new ground reconnaissance radar. While cruising by night at low altitude, the airplane struck trees, stalled and crashed in a dense wooded area located south of Stone Lake. The aircraft was totally destroyed and all nine crew members were killed.
Crew:
Cpt Curtis E. Robertson, pilot,
1st Lt Darrick R. Negron, copilot,
Lt Col Jack Atherton, pilot instructor,
Cpt Edward E. Kamph, radio navigator,
1st Lt Jerome P. Calligari, navigator,
Maj James H. Crook, navigator instructor,
Cpt Michael J. Dunlap, early warning operator,
A1C Gerald D. Turney, air gunner,
M/Sgt Lonnie Woodard, flight engineer.

The aircraft was involved in a ground crash test on behalf of the Flight Safety Foundation and assistance of North American Aviation. With no one on board, the aircraft was crashed at a speed of 130 knots against a concrete wall and was completely destroyed. The weapon cylinder in the cargo bay remained intact.
Thanks to Chris Baird - www.arizonawrecks.com

The four engine airplane departed Otis AFB, MS, in the evening of November 10 on a maritime patrol flight over the Atlantic Ocean, carrying 15 passengers and a crew of four. At 0130LT, while cruising at a height of 200 feet, the airplane nosed down and crashed into the ocean about 200 km east of Nantucket. The crew of a fishing vessel who was near the crash site was able to quickly intervene but only few debris were found, such as life vests and personal stuffs. According to eyewitnesses, one of the engine was on fire at the time of the accident.

The aircraft was used in psychological warfare role. It was fitted with loudspeakers for the delivery of propaganda messages. In flight, an engine failed, forcing the crew to attempt an emergency landing in an open field. The aircraft was damaged beyond repair while all four crew members were rescued.

The crew was involved in a defoliant mission when, cruising at low height, the aircraft was struck by enemy fire. The crew was able to completed an emergency landing 13 km west of Lai Khê. While the aircraft was damaged beyond repair, all three crew members were rescued 25 minutes later by the crew of a helicopter.

While cruising at low altitude in poor weather conditions, the airplane struck the slope of a hill located in the region of An Khe. A crew member was killed while two other occupants were rescued.

After touchdown at Cam Ranh Bay Airport, the airplane was unable to stop within the remaining distance and overran. It lost its undercarriage and came to rest few dozen yards further on. There were no casualties but the aircraft was written off.