WEP setup.

[JG53Frankyboy]

in my limited experince so far only the 109 and Spit II has WEP.
the 109 is easy, map a button, WEP wil be engaged and disanges after 1min automaticly.

the Spitfire you have to "remove" the safety from the throttle...you can do that by mouse or a button. THAN you can push the lever more forward and you will get ~9lb/sqin boost instead of 6 (IIRC)

the Hurricanes has also this function. it looks just different , its a red nob you can pull out. BUT, at least i could not manage to get a higher boost after that action.