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The Packard 1A-1500 was an American 12-cylinder liquid-cooled 60-degree Vee piston aircraft engine designed in 1924.[1] Test flown in the second prototype Douglas XO-2, it proved to be unreliable. Only 29 engines were built.
| 1A-1500 | |
|---|---|
| Type | Liquid-cooled V-12 piston engine |
| Manufacturer | Packard |
| First run | 1924 |
| Number built | 29 |
Data from STATISTICS OF ALL THE AERO ENGINES OF PACKARD[2]
General characteristics
- Type: V-12 liquid-cooled piston aircraft engine
- Bore: 5+3⁄8 in (136.5 mm)
- Stroke: 5+1⁄2 in (139.7 mm)
- Displacement: 1,498 in3 (24.5 L)
- Dry weight: 720 lb (326.5 kg)
Components
- Valvetrain: Four valves per cylinder, overhead camshaft
- Cooling system: Liquid-cooled
Performance
- Power output: 500 hp (370 kW) at 2,000 rpm maximum continuous;520 hp (390 kW) at 2,200 rpm for takeoff
- Specific power: 0.347 hp/cu in (15.8 kW/L)
- Power-to-weight ratio: 0.722 hp/lb (1.187 kW/kg)
Comparable engines
Related lists
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