Phil,

sorry to hear about your dad. I guess he'll be watching our flying from above now...

For a l'il Tsunami to fly around the house, I'd do a smaller one like the 75% you asked about (it's really 40" span plus wing tips). That's why I wanted to build one in that size. But it only takes about 300W for a 2-2.5 ponder. I bought a pair of low cost 28 mm high kV motors. One of them went into the Pico while the other was needing a home - hence the Vortex.

David.