RE: Mini C Airboat
Here's a link for a vid for this Mini C Airboat. It shows it running a 2 blade 6X5 and a 3 blade 7X5 both on 2s lipo. I did run it on 3s lipo which made it much faster but the torque roll was worse.
[link]http://youtu.be/vXU-oXv6xq0[/link]