Individually Owned: 150,657
Corporate Owned: 137,281
Hirth 3500 Ser Aircraft Engine
| Manufacturer Name | Hirth |
| Model Name | 3500 Ser |
| Aircraft Engine Type | Reciprocating |
| Horsepower or Pounds of Thrust (For Reciprocating Engines) |
270 hp |
| Thrust | n/a |
| Number of aircraft regsitrations with this engine type | 8 |