| A-7 | |
|---|---|
| |
| Hall-Scott A-7a at the National Air and Space Museum | |
| Type | Piston aero engine |
| National origin | United States of America |
| Manufacturer | Hall-Scott Motor Car Company |
| First run | 1910s |
The Hall-Scott A-7 was an early liquid-cooled aircraft engine manufactured by the Hall-Scott company of Berkeley, California. Using a straight-4 configuration, the engine developed 90 horsepower (67 kW) as the A-7 and 100 horsepower (75 kW) as the A-7a. In service these engines suffered from reliability problems and were prone to catch fire while in operation.