I flew it again today with my OS 50 SX, funny to have a $150 engine on the front of a $10 piece of foam! 2 flights to an empty tank, about 10 minutes each. The flight is a combination of BIG glider and ultra light trainer. I was flying backwards under power in a 10mph breeze, every landing has been zero ground speed.

There is no lateral flex because the leading edge is a 2x2, and a piece of plywood. (way tailheavy plane, needs lots of nose weight so I thought I'd make use of it!), but front to back, it's annother story! You can watch it flex as you do a nearly motionless fly by, and "high speed" dives are not a good thing, not enough elevator to recover without slowing down.

It's not the every day at the field plane, but it was fun. I'll keep working around the problems, and try to get it flying even better. I have lots of ideas.

As to flying the 4x8 sheet of Coroplast, that's one heavy, flexing plane! Maybee you could get it to flap in the breeze, and fly like a bird! A full sheet of insulation foam weighs less than 4 lbs.

No one has asked about transporting a one piece plane that's nearly 5 foot across. Thank goodness for the motorhome!

Gordon