| 1A-1500 | |
|---|---|
| Type | Liquid-cooled V-12 piston engine |
| Manufacturer | Packard |
| First run | 1924 |
| Number built | 29 |
The Packard 1A-1500 was an American 12-cylinder liquid-cooled 60-degree Vee piston aircraft engine designed in 1924. Test flown in the second prototype Douglas XO-2 it proved to be unreliable. Only 29 engines were built.