Why can the Quest Kodiac and Cessna Caravan not exceed 200 knots?
PT6 from Pratt and Whitney in other implementations like Epic E1000 and Pilatus PC12 can cruise at over 300 knots.
The Kodiac and Caravan are advertised at only ~180 knots. Why is there such a difference?
Is the fixed landing gear the problem for such a limitation on speed?