Even a warm hangar can be dangerous. The RAF used to have an Andover (HS748) based in Norway. They found that if you took the warm aircraft out of the hangar and there was still precipitation, the snow used to melt to the airframe giving clear ice and a bigger problem. The trick was to open the hangar doors an our before removing the aircraft thus keeping it clear of snow and ice, but cooling it to ambient.
Last edited by Dan Winterland; 14th August 2007 at 00:34.
Reason: spilling