well, first, the center of gravity's too far back and..;) Hey, it's great modeling. I thought the original blade tips looked 'strange'..but I've only even been in a helicopter once (and that the 'ol 'egg beater' 60's type..;)..so what do I know?..;) Maybe just a couple of smaller fans under the cockpit, and you're dealing..of course, I don't know what that would do to the propwash of the back props vis-a-vis turbulence, downdrafts, etc..;)
It's only a model
-Patsy, MPATHG..;)

I wish I'd said that.. The Staircase Wit

anahl nathrak uth vas betude doth yel dyenvey..;)