Almost finished lofting the fuse by now...kinda I just got a hand on this...

Hi Bob,

Glad to hear from you. In my math I´ve included the prop and spinner. Just to give me a final figure of how much a complete powerplant would weight. I have to come with a airframe weighing a max of 2200 in order to come below 5kg. Since I´m planning building out of balsa, white glue, minimal epoxi, dope and litespan I think a 2600g finished airframe (with l/g and wheels) figure is more realistic.
Anyway by that time I hope FAI set the max weight to 12lbs (5.5kg)....