Packard 1A-1500

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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.^[1] Test flown in the second prototype Douglas XO-2 it proved to be unreliable. Only 29 engines were built.

Applications

Specifications (1A-1500)

General characteristics

Type: 12-cylinder liquid-cooled Vee piston aircraft engine
Bore: 5 ³⁄₈ in (136.5 mm)
Stroke: 5 ¹⁄₂ in (140 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: 520 hp (387.8 kW) at 2,200 rpm for takeoff
Specific power: 0.27 hp/in³ (12.4 kW/L)
Power-to-weight ratio: 0.53 hp/lb (0.87 kW/kg)

References

Wikimedia Commons has media related to Packard aircraft engines.

Notes

↑ Gunston 1989, p.109.

Bibliography

Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9
Aircraft Engine Historical Society

v t e Packard aircraft engines

Piston engines	A-1500 A-2500 DR-980 V-1650 X-2775

Turbine engines	XJ41 XJ49

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