This is probably how...
1) Spawn on the CV... or land on it...
2) Back up the plane, by the method in previous posted, to the very back of the CV, and stop just before your back wheels fall off the side (to get max runway length).
3) Hold spacebar (for full brakes) and then throttle up to max, including WEP if the plane has it.
4) Suddenly release the brakes... (kinda slingshots plane, at least you don't lose runway length waiting for engine to 'catch up' to full throttle.)
5) I guess we need to hit the left rudder a tad to miss the island...
6) Just before the end of the runway (front of the CV), drop full flaps...
The idea is to get as much speed as you possibly can and then drop flaps at the last moment to buy time to get even more speed once you are airborne...
Don't drop flaps at start of take off because they will reduce your speed!
AND check your trims, turn off combat trim, all three trims should be manually centered (combat-trim gets a mind of its own sometimes, inefficiency can cause loss of precious speed.)
editing again... might as well back the plane up to the back left corner, that way there is no need to tap the left rudder to miss the island...