Individually Owned: 150,657
Corporate Owned: 137,281
Rolls-Royc Rr O-300-D Aircraft Engine
| Manufacturer Name | Rolls-Royc |
| Model Name | Rr O-300-D |
| Aircraft Engine Type | Reciprocating |
| Horsepower or Pounds of Thrust (For Reciprocating Engines) |
145 hp |
| Thrust | n/a |
| Number of aircraft regsitrations with this engine type | 2 |