1986 British International Helicopters Chinook crash 1986 British International Helicopters Chinook crash On 6 November 1986, a Boeing 234LR Chinook helicopter returning workers from the Brent oilfield crashed on approach to land at Sumburgh Airport in the Shetland Islands. At from the runway the helicopter had a catastrophic forward transmission failure which de-synchronised the tandem rotors, causing the blades to collide. The helicopter crashed into the sea and sank. 43 passengers and two crew members were killed in the crash; one passenger and one crew member survived with wounds. The helicopter was normally based at Aberdeen Airport but had been based at Sumburgh Airport since 3
Birdman Chinook 2008, described the Chinook Plus 2 with the HKS 700E engine: The factory claims that a first time builder can complete the Chinook Plus 2 in 220 hours of labour. The rights to the Chinook Plus 2 were sold to US company, the Aeroplane Manufactory in 2013, which put the design back into production in 2016. The Chinook WT-11 design won Reserve Grand Champion at AirVenture in 1983 and again in 1984. In August 1983 test pilot Dennis Maland flew a WT-11 with the standard Rotax 277 engine to a height of . In November 1984 Jack Hughes flew a