Pratt & Whitney R-1830 Twin Wasp
Code: R-1830
4-Stroke
Confirmed
Key Specifications
Manufacturer
Pratt & Whitney
(United States)
Family
Wasp Series
Displacement
30.0 L (1830.7 ci)
Power Output
746 kW / 1000 hp 1000.4 hp / 1014.3 PS
Torque
2,500 Nm
1843.9 lb-ft / 254.9 kpm
Configuration
Radial 14 Cylinders
Fuel Type
Aviation Gasoline
Induction
Naturally Aspirated
Unit Converter
Detailed Specifications
| Manufacturer | Pratt & Whitney (United States) |
|---|---|
| Family | Wasp Series |
| Stroke Type | 4-stroke |
| Configuration | Radial 14 Cylinders |
| Displacement | 30,000.0 cc (1830.7 ci) |
| Bore × Stroke | 140.0 mm × 140.0 mm (5.512 in × 5.512 in) |
| Compression Ratio | 6.7:1 |
| Power Output | 746.0 kW (1000.4 hp / 1014.3 PS) |
| Torque | 2,500.0 Nm (1843.9 lb-ft / 254.9 kpm) |
| Valvetrain | OHV |
| Fuel System | Carburetor |
| Fuel Type | Aviation Gasoline |
| Induction | Naturally Aspirated |
| Cooling System | Air-cooled |
| Oil Capacity | 45.0 L (47.6 qt) |
| Weight | 590.0 kg (1300.7 lbs) |
| Production Years | 1932 - 1950 |
| Data Quality | Confirmed |
Applications
| Vehicle/Equipment | Manufacturer | Years | Notes |
|---|---|---|---|
| Douglas DC-3 | Douglas Aircraft | 1935 - 1945 | Most successful transport aircraft in history |
| PBY Catalina | Consolidated Aircraft | 1936 - 1945 | Flying boat, served in all theaters of WWII |
| Consolidated B-24 Liberator | Consolidated Aircraft | 1940 - 1945 | Heavy bomber, most produced American aircraft of WWII |
| Grumman F4F Wildcat | Grumman | 1940 - 1945 | US Navy fighter aircraft |
Historical Timeline
1932 - 1932
First Run
The R-1830 Twin Wasp first runs in East Hartford, Connecticut. Initial power output is 800 hp.
1940 - 1945
World War II Production
Production peaks during WWII. At its height, a new engine rolls off the line every 30 minutes.
1945 - 1945
End of Production
Total production reaches 173,618 units, making it the most produced aviation engine in history.
2023
Still Flying
Hundreds of R-1830s are still airworthy today, powering restored DC-3s, PBYs, and warbirds around the world.
Notes & Observations
Still Flying
Hundreds of R-1830s are still airworthy today, powering restored DC-3s, PBYs, and warbirds around the world.
Added: 2026-02-26