You are right but why should I go into all of that detail? I've spun my wheels before on other threads giving all of this detailed info only to hear crickets from the OP. Now I give the cliff notes version. If they figure out what they are doing then we can get in deeper. I have no idea what the OP is doing and I would wager that he doesn't either.. It started out looking like a small foamy twin powered plane question and now it's a car?
Whatever it is GOOD LUCK !