A Lesro air boat kit designed some years ago for I believe, IC engines. Then also brushed electric. I started off brushed, then brushless, but always found it top heavy, moderate speed and difficult to control in a wind. Now fitted with 2 x 64mm EDF units, twin rudders. it is around 5" lower than previous. Not a fast electric by any means, but good enough for now. may upgrade to more blades at some point. (Motor: EDF Unit x 2) (ESC: Hobbywing x 2) (8/10)