need help with a line for my config

[madmedic 0]

I am working on a pilot who will only be wearing his helmet if he is actually in an airplane. (using hidden selections)

Trouble is...I dont know what the first line of the script should say.

How do I make the script check if the pilot is in an airplane?...ONLY an AIRPLANE, (I dont want him to have on the mask/helmet if he is in a helicopter)

thanks for any help