Extreme Flight Yak 54 88''-0.jpg 48.1 KB · Views: 37 This is an electrified version of the Extreme Flight Yak 54 88". Its got a Hacker A60-24S on a 12C Hyrdronoic battery. It flies great, and the CG is perfect so it balances inverted. This variant requires: Extreme Flight Yak 54 88''_EA