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1966 Felthorpe Trident crash

Crash of a Trident airliner in a pre-delivery flight in 1966

Field	Value
name	Felthorpe Trident crash
occurrence_type	Accident
image	Trident 62a.jpg
image_upright	1.15
caption	A Trident identical to the accident aircraft, here photographed during a display flight
date
summary	Deep stall due to pilot error
site	Felthorpe, Norfolk, United Kingdom
coordinates
aircraft_type	Hawker Siddeley Trident 1C
operator	Hawker Siddeley
tail_number	G-ARPY
origin	Hatfield Aerodrome
destination	Hatfield Aerodrome
occupants	4
crew	4
fatalities	4
survivors	0

On 3 June 1966, a newly built Hawker Siddeley Trident jetliner crashed during a pre-delivery test flight near the village of Felthorpe, Norfolk, England, killing all four crew. The aeroplane had entered a deep stall from which the crew were unable to recover. It was the first loss of a Trident aircraft.

Aircraft and crew

Aircraft

The aircraft involved was a tri-jet Hawker Siddeley Trident 1C, registration that was about to be delivered to British European Airways.

Crew

The crew were pilots Peter Barlow and George Errington, and technicians E. Brackstone-Brown and G.W. Patterson.

Accident flight

The aircraft was making its first flight, which was a routine test flight to enable the aircraft's Certificate of Airworthiness to be issued. There were four crew on board. The aircraft took off from Hatfield Aerodrome at 16:52. Tests established that the stick shaker operated at 102 kn, and that stall recovery system operated at 93 kn. The crew then disconnected the stall warning systems in order to ascertain the actual margin left after the warning had been given before the aircraft stalled. On this particular flight, the aircraft was being operated with its centre of gravity towards its aft limit.

Shortly after 18:30, the pilot reported that the aircraft was in a "superstall". At the time, the aircraft was observed to be configured for landing.

Investigation

The Accidents Investigation Branch opened an inquiry into the accident. The investigation found that accident was the result of the pilot delaying recovery manoeuvres for too long, thereby allowing the aircraft to enter a deep stall from which it was impossible to recover.

References

Sources

Deep Stall Disaster Flight International, 20 November 1968 p909-910

References

"Hawker Siddeley Trident Accidents". Shockcone.
"G-ARPY Accident description". Aviation Safety Network.
"DH121 Trident". de Havilland.
"History". Felthorpe Flying Group.

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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