Umless you are about to land unnanounced into someones airport 7700 will be of no use to you if you are on fire.
Getting it down quick will be more important than switching on the transponder for 10 seconds and switching it off again. Chances are ATC would consider it to be a spurious selection anyway.
Far more important would be to use that brief time to tell someone you are on fire or have smoke and are forcelanding and cutting all electrical power.
As for fire protection clothing other than wearing nomex, cotton is best but frankly none will protect you for very long plastics will obviously burn into the skin and are the worst.
Pace
Last edited by Pace; 1st October 2012 at 07:22.