Individually Owned: 150,657
Corporate Owned: 137,281
Rotax 503 Dcdi Aircraft Engine
| Manufacturer Name | Rotax |
| Model Name | 503 Dcdi |
| Aircraft Engine Type | 2 Cycle |
| Horsepower or Pounds of Thrust (For Reciprocating Engines) |
52 hp |
| Thrust | n/a |
| Number of aircraft regsitrations with this engine type | 572 |