Thanks for the compliment on the heavy lift project it was fun, the plane weighed 7 lbs at 1000 square inches and it lifted 23.5 lbs for just over 30 lbs all up. Wish there was enough interest to do it again.

The flying wings that work well are all very similar. Optimizing the wing loading with control deflection to get maximum speed and maneuverability was the priority for this one. As a result the later improved versions had a combination motor mount/fuel tank assembly instead of separate. As the electronics and servos got smaller the doghouse on the back was dropped and everything was inside the wing cleaning it up considerable. The wing tip plates became smaller and most changed them to a profile that personalized them.

The biggest innovation was finding out that once built and flown you could remove the tip plates and shorten the wing up to 4 inches a side and just reapply the tip plates and fly without having to readjust for the CofG. The plane flew the same except the roll rate increased dramatically again increasing the maneuverability. We actually tried reducing the span even more but performance started to suffer so we settled on a 40 inch span down from 48.

Dennis