Suffering from low-endurance? Drinking up too much fuel? Let those problems be a thing of the past, with these high-efficiency turbine engines! They will consume four times less fuel than previous turbines, without sacrificing mass or power! How? We increased their power and put a throttle limiter via XML. Comes in 1x power (white), 2x power (black), 5x power (blue), 10x power (red), and 20x power (grey). Comes in J15, J50, J90, BFE150, BFE300, and VTOL varieties. Get yours now! Credit me if you use this in any of your designs. Or not. You don't have to. I won't be mad. Just, disappointed.