Tech Spec's
Prop-Liners of America , Inc.
58 Lindbergh Drive
Brainard Airport
Hartford, CT 06114
Phone:860-684-4988 Email:
wbradshaw@prop-liners.com
Piasecki H-21
Technical Specifications
| First Flight: | April 11, 1952 |
| Number Built: | 500+ for military and commercial service |
| Length: | 86 feet 4 inches |
| Rotor Diameter: | 2 @ 44 feet 6 inches each |
| Height: | 16 feet |
| Max Take-Off Wt.: | 13,300 lbs. |
| Empty Wt.: | 8,000 lbs. |
| Max Cruising Speed: | 135 mph 117 kts |
| Normal Cruising Speed: | 98 mph 85 kts |
| Service Ceiling: | 10,000 feet |
| Fuel Capacity: | 300 US gallons |
| Range: | 450 miles |
| Fuel Type: | 100/130 octane |
| Fuel Consumption: | N/A |
| Engine: | 1 Wright R-1820-103 rated @ 1425 HP |
| Seating: | 19 Passengers |
| Crew: | 2 Pilots |
Engine Specifications |
Wright R-1820-103 |
| Type: | 9 cylinder air cooled radial |
| Length: | 48.35 inches |
| Diameter: | 55.25 inches |
| Bore: | 6.125 inches |
| Stroke: | 6.875 inches |
| Displacement: | 1820 cubic inches |
| Compression Ratio: | 6.80 to 1 |
| Dry Weight: | 1362 lbs. |
| Ignition: | Magnetos; Bosch S9LU-3 |
| Fuel Grade: | 100/130 octane |
| Carburation: | Bendix PD-12K19 |
| Performance: | Take-Off: 1425 HP @ 2700 RPM
Normal: 1275 HP @ 2500 RPM |