- Source: Packard 1A-1500
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.
Applications
Boeing Model 15
Boeing XP-4
Curtiss Falcon
Douglas XO-2
Loening OL
Specifications (1A-1500)
Data from STATISTICS OF ALL THE AERO ENGINES OF PACKARD
= 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)
See also
Packard 1A-2500
Comparable engines
Curtiss D-12
Fairey Prince (V-12)
Rolls-Royce Kestrel
Related lists
List of aircraft engines