Airspeed AS.10 Oxford

The crew left RAF Brawdy in the evening on an experimental night radar meteorological research flight. Aircraft was due to overfly a marker dropped into the sea taking readings at 100 feet intervals up to 1,500 feet using a radar altimeter to secure accuracy. At 0200LT, while descending to 200 feet, the aircraft impacted the sea. No recovery of bodies or wreckage proved possible. Aircraft and crew were from the RAF Radar Meteorological Flight based at Defford, but detached to Brawdy for this particular sortie.
Crew:
F/Lt Daniel Joseph Cotter, pilot,
F/Sgt Arthur Edward Bedwell, navigator,
W/O Edward Moore, observer.
Source:
http://www.thunder-and-lightnings.co.uk/memorial/entry.php?id=164

The crew encountered poor weather conditions with low visibility due to snow storm. While flying at low altitude, the twin engine aircraft hit tree tops and crashed in a wooded area located in New Barn Farm, Temple Guiting. All three crew members were killed.
Crew (3rd AFU):
F/O Gordon Alexander Aubrey,
P/O Thomas Gould,
Sgt Howard Bryant Montgomery.

The pilot, sole on board, was completing a training sortie from RAF Wheaton Aston. While performing steep turns at a height of some 2,000 feet, he lost control of the aircraft that dove into the ground and crashed in flames in a field. The pilot was killed. It is believed that the loss of control may have been caused by two unidentified RAF Spitfire that distracted the Oxford's pilot by making a quick pass from his position.
Crew (21st AFU):
F/O James Smellie.

The twin engine aircraft left RAF Cranwell for a cross country navigation flight. Around 45 minutes later, the weather worsened with low clouds. To maintain a visual contact with the ground, the pilot decided to reduce his altitude when the aircraft hit the slope of Mt Shutlingsloe. Three crew members were killed while two others were injured.
Crew:
F/O Horace Keith Shawyer, pilot,
F/Lt Horace Garth Featonby, pilot, †
LAC Fred Roscoe, †
Cpl Albert Joseph Burd,
LAC George Fishwick. †

The crew was performing a training sortie from RAF Warboys. While cruising at low altitude in poor visibility, the twin engine aircraft hit the slope of Mt Rushup Edge located southwest of Edale. The aircraft was destroyed and all four crew members were injured.
Crew (PFNT):
F/Lt Brian Gipson, pilot,
F/Lt Douglas Ivor Jones, copilot,
F/Lt William John Barclay, navigator,
F/O Victor Percival Skone-Rees, bomber.

On approach to RAF Church Lawford, the twin engine aircraft was too low, hit tree tops and crashed in a wooded area. Both crew members were killed.
Crew (1533 BAT):
W/O Frank Needham, pilot,
Sgt Eric Kershaw, pilot.

On final approach, the crew decided to perform a go around. For unknown reason, the twin engine aircraft overshot, hit tree tops located at the end of the runway and crashed in flames in a wooded area. Both pilots were killed.
Crew (18th PAFU):
F/O Albert William John Lyons, pilot,
F/O Alexander Stephen Lees, pilot.

En route, the crew encountered poor weather conditions with a snowstorm. Due to icing conditions, the captain ordered his second to bail out and attempted to make an emergency landing when the aircraft went out of control and eventually crashed in a wooded area. While the second pilot was unhurt, the captain was killed.
Crew (18th AFU):
F/O D. J. Turner, pilot,
F/O Fred Waddingham, pilot.

While cruising in a snowstorm, the pilot encountered a double engine failure and was forced to attempt an emergency landing. While trying to land, the aircraft impacted trees and crashed in a wooded area. A crew member was killed while both other occupants were injured.
Crew:
F/Lt Norman Butler Worswick, pilot,
F/Sgt J. R. Payne,
F/O Frank Reid Miller. †

While conducting a GEE exercise, the pilot lost control of the aircraft that dove into the ground and crashed in a prairie. All three crew members were killed.
Crew:
P/O Micheal Larkin, pilot,
F/Lt Ivor Reginald Sims, observer,
Sgt George William Stafford, observer.