The funny thing is that, they might be a bit pricy, especially the big ThunderPower LiPo packs needed for F3A (around $400-$600 depending on final configuration), but the cost to "refuel" them is oh so CHEEP.

Compare the battery/motor cost to a YS DZ140 (and dozens and dozens of gallons of fuel) and it doesn't look so bad.

I saw Jason fly the Acro 2 at SEFF. It wasn't underpowered at ALL by anyone's reckoning. In fact, a lot of folks just stared, slack-jawed, in amazement.

Rick.