Originally Posted by
Doctor Cruces
Bristow and British Airways Helicopters did the same to the engines after every rig flight. I don't think they ignited, just turned them over whilst they sprayed something through that took the salt off anf prevented corrosion.
That was back in the seventies when I was but a youngun and standing in as Station Manager at Sumburgh for the airline I worked for.
CHC Scotia Heliport, Aberdeen, I regularly see the helicopters being cleaned at the end of the day's flying. Some sort of sudsy liquid on a long hose, brushes on similar extension and then pressure washed.