Here is the "Tadpole's" bigger relative, the "FrogBipe" v4.2 that John also made from F3 blue core foam.
Personally, I think he owns stock in this stuff!
WingSpans - 39” Upper, 23” lower
Weight - 4.8 oz.
Motor - GWS 50XC
Prop - red Sky Zap 4.25X?
Battery - K880
Click here for a larger image.