PC6H2 - One 255kW (340hp) Lycoming GSO480B1A6 geared and supercharged six cylinder piston engine driving a three blade constant speed propeller. PC6/B2H4 - One 410kW (550shp) Pratt & Whitney Canada PT6A27 turboprop.
PC6H2 - Max speed 233km/h (126kt), max cruising speed 216km/h (117kt), economical cruising speed 190km/h (103kt). Initial rate of climb 550ft/min. Service ceiling 17,400ft. Max range with no reserves 1500km (810nm). PC6/B2H4 (Utility version) - Economical cruising speed 213km/h (115kt). Initial rate of climb 940ft/min. Max operating ceiling 25,000ft. Range with max payload at economical cruising speed and no reserves 730km (395nm), range with max internal fuel 925km (500nm), with external fuel 1610km (870nm).
PC6H2 - Empty 1250kg (2755lb), max takeoff 2200kg (4850lb). PC6/B2H4 - Empty 1130kg (2491lb), max takeoff 2800kg (6173lb).
PC6H2 - Wing span 15.14m (49ft 8in), length 10.20m (33ft 6in), height tail down 3.20m (10ft 6in). Wing area 28.8m2 (310sq ft). PC6/B2H4 - Wing span 15.87m (52ft 1in), length 10.90m (35ft 9in), height 3.20m (10ft 6in). Wing area 30.2m2 (324.5sq ft).
Pilot and passenger on flightdeck, with standard seating for six in main cabin. Max seating for 11 including pilot. Alternative layouts include two stretchers and three medical attendants, or 10 skydivers. Some equipped for agricultural spraying.
Over 500 Porters of all versions have been built, including 100 under licence in the USA and against various military orders.