www.VelocePlanes.com/ANG
140 ktas on 135 non turbo HP engine @1500 ft on pre-built prop. so simply add a turbo to that and gain 2 knots per 1,000 ft roughly - and your at 156 ktas at 8,000 ft. bump that up to 145 HP - and 162 ktas - and go to 160 hp turbo custom made constant propeller for this plane speeds and weight and your at the "impossible physics some think they know this plane cannot do" for 180 ktas at 8,000 ft. Then simply add 2 more knots per 1,000 ft – and at 18,000 ft – you are at 200 ktas with 160 HP turbo engine.