E-Help R&D 2017, the bowsprit Dolly and rewound motor

Calm air flatland performance testing of the 105 KV rewound motor (building seen on another popular video on this channel). Testing propeller Menz 34x14. Also explaining the bowsprit dolly system. Motor unit now fixed for the E-Help Student system. Tesla batteries next. First the 18650. Hopefully also the 2170 batteries at 270 wh/kg which means doubling energy density compared to present LiPo 125 wh/kg.