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1A-1500
Packard 1A-1500

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 38 in (136.5 mm)
  • Stroke: 5 12 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)

See also[]

Notes[]

  1. Gunston 1989, p.109.

Bibliography[]

All or a portion of this article consists of text from Wikipedia, and is therefore Creative Commons Licensed under GFDL.
The original article can be found at Packard 1A-1500 and the edit history here.
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