Continental O-526

O-526
	The sole Cessna 620, powered by Continental GSO-526A engines
Type	Piston aircraft engine
National origin	USA
Manufacturer	Continental Motors
Major applications	Cessna 620
Produced	1957

Last updated March 21, 2025

The Continental O-526 is a family of air-cooled flat-6 aircraft piston engines built by Teledyne Continental Motors.^[1]

Development

Constructionally similar to the O-470 series the O-526 has larger cylinders of increased bore and stroke, giving a displacement of 526 cu in (8,620 cc). The O-526 was introduced with reduction gearing and a supercharger as the GSO-526 for the Cessna 620.

Specifications (GSO-526)

Data fromJane's all the World's Aircraft 1955-56.^[1]

General characteristics

Type: 6-cylinder air-cooled horizontally opposed aircraft piston engine
Bore: 5.125 in (130.2 mm)
Stroke: 4.25 in (108 mm)
Displacement: 526 cu in (8.62 L)
Length: 52.8 in (1,340 mm)
Width: 36 in (910 mm)
Height: 23.9 in (610 mm)
Dry weight: 540 lb (240 kg)dry

Components

Fuel type: 91/96 Octane
Cooling system: Air-cooled

Performance

Power output: 320 hp (240 kW) at 3,000 rpm for take-off
Specific power: 0.58 hp/in³ (26.5 kW/L)
Compression ratio: 6.0:1
Power-to-weight ratio: 0.593 hp/lb (0.97 kW/kg)

References

1 2 Bridgman, Leonard (1955). Jane's all the World's Aircraft 1955-56. London: Jane's all the World's Aircraft Publishing Co. Ltd.

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[JAWA5556-1] 1 2 Bridgman, Leonard (1955). Jane's all the World's Aircraft 1955-56. London: Jane's all the World's Aircraft Publishing Co. Ltd.

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