No fatalities

Maritime patrol aircraft ditched near Isle of Portland due to fuel exhaustion (K8711)

Isle of Portland, United KingdomFlight

On October 14, 1939, an Avro 652 Anson (registration K8711) operated by Royal Air Force - RAF was involved in an aviation accident near Isle of Portland, United Kingdom in flight. No fatalities were reported. Investigators recorded the probable cause as: Fuel exhaustion necessitated an emergency ditching after reduced visibility from thick fog during a night maritime patrol flight. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A); 8 related events involving the same aircraft type or operator are linked below.

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Primary reportUpdated 2026-08-04Data APIEditorial standards

A maritime patrol aircraft was forced to ditch in the sea near the Isle of Portland after encountering thick fog and running short on fuel during a night operation. All four crew members were rescued before the plane sank.

What happened

The incident involved a maritime patrol mission departing from RAF Thorney Island. During the night phase of the flight, the crew faced significantly reduced visibility caused by thick fog. As the aircraft's fuel reserves became critically low, the pilot made the decision to ditch the plane in the water. The emergency landing occurred approximately three kilometers northeast of the Isle of Portland. Following the ditching, all four individuals on board were successfully rescued from the water. The aircraft subsequently sank and was not recovered.

Findings

The primary driver for the emergency ditching was the combination of adverse weather conditions and fuel exhaustion. The thick fog likely complicated navigation and increased fuel consumption or delayed a safe landing, forcing the crew to choose the sea as the only viable option for survival.

Probable cause

Fuel exhaustion necessitated an emergency ditching after reduced visibility from thick fog during a night maritime patrol flight.