Individually Owned: 150,657
Corporate Owned: 137,281
Franklin 2A4 Series Aircraft Engine
| Manufacturer Name | Franklin |
| Model Name | 2A4 Series |
| Aircraft Engine Type | Reciprocating |
| Horsepower or Pounds of Thrust (For Reciprocating Engines) |
49 hp |
| Thrust | n/a |
| Number of aircraft regsitrations with this engine type | 37 |