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ASN Wikibase Occurrence # 53775
Last updated: 17 October 2021
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Time:02:40 LT
Type:Bristol Beaufort I
Owner/operator:22 Squadron Royal Air Force (22 Sqn RAF)
Registration: N1146
Fatalities:Fatalities: 4 / Occupants: 4
Aircraft damage: Written off (damaged beyond repair)
Location:North Sea -
Phase: Combat
Departure airport:RAF Bircham Newton, Kings Lynn, Norfolk
Destination airport:
Bristol Breaufort Mk.I N1146 (OA-R), 22 Squadron, RAF: Written off (presumed destroyed) when lost (failed to return) from combat operations on 10 September 1940. All four crew killed. According to the official Air Ministry File into the incident (File AIR 81/3178): "Sergeant R D Gunn, Sergeant C S F Beer: killed; Sergeant S G Twitchin, Sergeant J Murray: missing believed killed; failed to return from air operations, Beaufort N1146, 22 Squadron, 10 September 1940

Beaufort N1146 Operation: Boulogne. Took off from RAF Bircham Newton, Kings Lynn, Norfolk at 01:30 hrs, last heard on W/T at 02:40 hrs. At 02:45 hrs the Beaufort flew between Orfordness and Yarmouth according to Casualty File AIR81/3178.

Sgt R D Gunn pilot
Sgt S G Twitchin Navigator
Sgt J Murray Wireless/Op
Sgt C S F Beer Air Gunner

Sgt Gunn is buried in Norfolk, Sgt Beer was recovered on Texel, Friesian Islands, and is buried in Den Burg. The others were not recovered and are commemorated on the Runnymede Memorial


1. Royal Air Force Aircraft N1000-N9999 (James J Halley Air Britain, 1977 p 5)
2. National Archives (PRO Kew) File AIR 81/3178:

Revision history:

17-Dec-2008 11:45 ASN archive Added
16-Aug-2019 23:21 Dr. John Smith Updated [Operator, Total fatalities, Total occupants, Other fatalities, Phase, Departure airport, Source, Narrative]
16-Aug-2019 23:21 Dr. John Smith Updated [Time]
19-Aug-2019 17:58 stehlik49 Updated [Operator]
18-Sep-2020 07:22 TigerTimon Updated [Cn, Other fatalities, Location, Country, Source, Narrative]

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