Ok many thanks blackdog, by the way, when I push the wep in the Spitfire this button go only forward but don't move back, How come? :confused:

In the Spitfire, you push it. In the Hurricane, you pull out the plug. Same engine, different control but they both do the same thing.

Bye Moggy you are right, but how come, the WEP of the Spitfire it move only forward and not back so is it always engaged ? :confused:

Bye Ivo,:-)

you still have to push your throttle forward too 110% and you are able to pull it back too 100% ;)

Yes we don't know if this is a bug or that only the ground crew can return this to its original position :) i think its a bug but time will tell. just be sure to return it to 100 percent or lower when out of the woods.