this link below might help figure some of the designs
http://www.nextcraft.com/highlift_rc_setups.html
"Dick" wrote in message
news:LaCKg.3597$ub5.2808@trnddc07...
After seeing the KP-5 Kappa Aircraft import's Fowler flap operate on the
Sport Pilot tv program, I was wondering what the simplest, least
complicated
mechanically/structurally sound means to operate would be.
It appeared to be some sort of extendable track??
My first thought, is that doesn't appear to be very simple.
Comments?
Thanks, Dick