I’m “thinking” about a Cirrus (without having ever sat in one, much less driven from the left seat). In reviewing performance characteristics, I’m very curious about an anomaly I can’t find any background on: The SR22T has a longer takeoff distance and lesser climb rate than a non-turbo SR22 (according to the manufacturer’s website). Why???
With identical airframes and MTOW’s., and with nearly identical power ratings (315 vs 310), it makes zero sense to this engineer that takeoff roll for a 315hp turbo is almost 50% longer than for a 310hp non-turbo (1,517’ vs 1,082’) AND rate of climb is (modestly) less at 1,203 FPM vs 1,270 FPM. The fact that the turbo make about 10% more torque than the non-turbo (315hp @ 2,500 vs 310hp @ 2,700) doesn’t help my confusion.
Is it possible the composite prop of the turbo is significantly less efficient than the aluminum prop of the non-turbo? That doesn’t make sense to me either, but it’s the most logical explanation I can come up with.
What say you, COPA members???