Harwell AFB

The airplane departed RAF Harwell at 2244LT on June 25 on an operation to Bremen. While returning to base the following morning, it was shot down by a German fighter and crashed into the sea off Harlingen. All six crew members were killed.
Crew:
Sgt James Stewart Leather, pilot,
Sgt Harry Bloor, pilot,
Sgt John McKelvie Dunn Oliver, observer,
Sgt Ronald Thomas Fage, wireless operator,
Sgt David Thomson Stanners, air gunner,
Sgt Gordon Lake, air gunner.

The airplane departed RAF Harwell at 2241LT on June 25 on an operation to Bremen. Over the target area, it was shot down by the German Flak and crashed in Hemelingen. All six crew members were killed.
Crew:
P/O David Christopher Evans, pilot,
Sgt Ronald Idris Coffin, pilot,
Sgt Thomas Phillip Morgan, observer,
Sgt Alfred George Leyland, wireless operator,
Sgt Michael Sweeney, air gunner,
Sgt J .McRewin Kennedy, air gunner.

The crew left RAF Harwell in the day on a bombing mission to Bremen, Germany, with 1,066 other aircraft. Following an uneventful mission, the aircraft was returning to UK and was overflying The Netherlands when it was shot down by the German Flak. It went out off control and crashed into the Wadden Lake, off Harlingen. All six crew members were killed.
Crew (15th OTU):
Sgt James Stewart Leather, pilot,
Sgt Harry Bloor, pilot,
Sgt John McKelvie Dunn Oliver, observer,
Sgt Ronald Thomas Fage, wireless operator and air gunner,
Sgt David Thompson Stanners, wireless operator and air gunner,
Sgt Gordon Lake, air gunner.

The airplane departed RAF Harwell on a map reading and fuel consumption test flight. In failed to return to base and is believed to have crashed into the Irish Sea off Anglesey. Lost without trace.
Crew:
Sgt Norman Victor Lloyd, pilot,
Sgt James William Bingham Cockburn, wireless operator,
Sgt James William Ashby, air gunner,
Sgt Edwin Alfred Bailey,
Sgt Leslie James Grove,
Sgt William Hurley,
Lac Ronald Douglas Jeffrey MacDonald.

The airplane departed RAF Harwell at 2340LT on May 30 on an operation to Cologne. Over Belgium, it was shot down by a German fighter and crashed in Waasmont. All five crew members were able to bail out and became PoW.
Crew:
W/O John Edward Hatton, pilot,
P/O J. B. Harper, navigator,
F/Sgt R. Hill, wireless operator,
Sgt Reginald John Collins, air gunner,
Sgt Freferick Raymond Hindle, air gunner.

The airplane departed RAF Harwell at 2314LT on May 30 on an operation to Cologne. Over Belgium, it was shot down by a German fighter and crashed in Montigny-le-Tilleul. Three crew members were killed and two others became PoW.
Crew:
Sgt Dennis John Paul, pilot,
W/O Stanley Maurice Green, observer, †
F/Sgt Thomas Leo Lyons, wireless operator, †
Sgt James McCormack, wireless operator, †
F/Sgt "Bunny" Evans, air gunner.

The crew of Wellington HX433 were carrying out a fuel consumption test flight from RAF Harwell near Didcot prior to the aircraft being ferried to the Middle East. The weather during the 28th May 1942 was reasonably good, but there was between 4 & 7/8th cloud over the high ground of Wales. At some point in the flight the aircraft had entered cloud and flown off course, the Court of Inquiry stated by at least 20 degrees. While still in cloud the Wellington flew into the shear rock wall on the North East face of 2830 ft high Mynydd Moel above Dolgellau a short way below the summit and completely disintegrated. Wreckage cascaded back down the mountain, landing on the steep and unstable scree slope below the cliff where some of it burned. At 21:15 a message was received by the Senior Medical Officer at RAF Towyn informing him that an aircraft had crashed in the mountains to the south of Dolegllau, he set out in the ambulance with a single orderly to the nearest road access. When they arrived they were told by the local Police that they had already discovered 4 bodies but that recovery during the night would be impossible due to the location of the wreckage. During the night enquiries were made to determine which aircraft had failed to return and how many crew there were. The following morning a larger team made up of the Medical Officer, 2 Orderlies a Sergeant and 8 Airmen together with the local Police and farmers made their way up to the wreckage and with “great difficulty” recovered the 6 bodies from the scree slope, which the RAF MO described as a “very steep slope, covered with large boulders”.
Crew:
F/Sgt William John Peter Grant, pilot,
F/Sgt Henry Lawrence Davis, pilot,
Sgt George Douglas Graham, observer,
Sgt John Ingram McDowell, wireless operator,
Sgt Clifford James Thomas, wireless operator,
Sgt Herbert Noel Williams, air gunner.
Source: https://www.peakdistrictaircrashes.co.uk/crash_sites/wales/vickers-wellington-hx433-mynydd-moel/

The airplane departed RAF Harwell on a training sortie. In flight, one of the engine failed. The pilot attempted an emergency landing when control was lost and the airplane crashed into the sea off the South Stack Lighthouse. All three crew members were killed.
Crew:
Sgt Eric Boaler, pilot,
Sgt Alfred Longhurst, pilot,
Sgt Cornelius Gerard Roughan, observer.

The crew was completing a local training sortie at RAF Harwell. On final approach, the pilot initiated a go around. While climbing to a height of about 200 feet, the airplane stalled and crashed in a field near the airbase. All seven crew members were killed.
Crew:
Sgt William Frederick Gerrard Hughes, pilot,
P/O John Semple Lindsay,
Sgt Cecil Charles McAllister, wireless operator,
Sgt Arthur Ernest Payne, wireless operator,
Sgt Walter John Albert Smart, observer,
Cdt Richard John Ayres,
C/Sgt W. A. Hughes.

While cruising in low visibility due to heavy rain falls, the Wellington collided with a RAF Supermarine Spitfire registered R6686. Both aircraft crashed in a field located in Broadwater, Cold Ashton, north of Bath. All seven occupants in both aircraft were killed. They were engaged in a training flight on behalf of the 15th OTU.
Crew:
W/O George Ernest Leeke, pilot,
Sgt Walter Frank Good, observer,
F/Sgt Stanley William Pook, wireless operator and air gunner,
Sgt Eric Coleman, wireless operator and air gunner,
Sgt Frederick Keith Fairclough, wireless operator and air gunner,
Sgt William Wilson, wireless operator and air gunner.