Power & Performance
The novel PT6A configuration has proven to be a key attribute to its success: its rearward, reverse flow inlet and forward facing turbine section providing fast maintenance turn-around through on-wing hot section refurbishment. The PT6A is a two-shaft engine with a multi-stage compressor driven by a single-state compressor turbine and an independent shaft coupling the power turbine to the propeller through an epicyclic concentric reduction gearbox. |
Inspections
Engine Run-Up and Performance:
Accessories Replacement:
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Engine Operating Limits:
Reliability - PT6A-67R:
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Performance
Engines
Propellers
Interior Dimensions
Width (at floor) Height Length Volume Weight Maximum Take-Off Weight Cargo Basic- Operating Weight Maximum Useful Load Maximum Fuel Capacity
Standard Long Range Tanks Cruise Speed Maximum Cruise Standard Cruise Low Fuel Flow
Maximum Cruise Standard Cruise Low Range (Standard Cruise- 45min Reserve) Standard Fuel Long Range Fuel Single Engine Ceiling |
BT-67
Pratt & Whitney PT6A-67R
1424 SHP Hartzell 5 Blade Aluminum
7 feet 6 feet, 6 inches 42 feet, 2 inches 1225 cubic feet 30,000 lbs 16,000 lbs 14,000 lbs 772 Gallons (5,172 Ibs) 1,542 Gallons (10,332 lbs) 215 Knotts (95% Torque) 205 Knotts (90% Torque) 174 Knotts (70% Torque) 152 Gallons/Hour 145 Gallons/Hour 122 Gallons/Hour 950 Nautical Miles (80% Torque) 1,860 Nautical Miles (80% Torque) 14,000 ft @ 27,000 lbs |
Piston DC3
Pratt & Whitney R-1830
1200 HP HSD 3 Blade 138"
7 feet 6 feet, 6 inches 33 feet, 10 inches 905 cubic feet 26,900 lbs 17,815 lbs 9,085 lbs 800 Gallons, (5,359 lbs) N/A 173 Knotts (700 HP) 160 Knotts (600 HP) N/A 119 Gallons/Hour 100 Gallons/Hour N/A 1,160 Nautical Miles N/A 9,000 ft @ 26,200 lbs |