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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.[1] Test flown in the second prototype Douglas XO-2 it proved to be unreliable. Only 29 engines were built.
Applications Specifications (1A-1500) Data from STATISTICS OF ALL THE AERO ENGINES OF PACKARD[2]
General characteristics Type: V-12 liquid-cooled piston aircraft engineBore : 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 Performance Power output: 500 hp (370 kW) at 2,000 rpm maximum continuous;520 hp (390 kW) at 2,200 rpm for takeoffSpecific power : 0.347 hp/cu in (15.8 kW/L)Power-to-weight ratio : 0.722 hp/lb (1.187 kW/kg)See also Comparable engines
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References Notes Bibliography