This thread is very intersting.

I think the idea could easily take shape. I know on a smaller 40-60 size plane, I don't think the extra weight would be worth it. But when you have 30 lb plane that have 50 something pounds of thrust when they are 30% planes, then I think that the extra weight wouldn't be that much of a problem.

I like the idea more of the variable pitch rotors like from a tail rotor from a helicoper and have like a Hacker motor powering them from a belt drive in the fuse.

I like this idea, and think it would be possible. But, if it didn't work, then it would look great to have little fans at the tips

I say go for it

~Michael~