- Source: Praga D
The Praga Hostivař D was a four-cylinder, air-cooled, horizontally opposed aircraft engine first produced in Czechoslovakia in 1936 but which enjoyed its greatest success after World War II due to the explosion in popularity of sports flying. A version for helicopters was produced post World War II as the Praga DH
Applications
Mráz M-2 Skaut
Aero XE-II
IFIL-Reghin RG-6 (1957)
Specifications (Praga D)
Data from Jane's All The World's Aircraft 1951–52.
= General characteristics
=Type: four-cylinder, air-cooled, horizontally opposed
Bore: 95 mm (3.74 in)
Stroke: 100 mm (3.93 in)
Displacement: 2.836 L (173 cu in)
Length: 894 mm (35.19 in) (with propeller boss)
Width: 810 mm (31.89 in)
Height: 546 mm (21.5 in)
Dry weight: 67 kg (148 lb)
= Components
=Valvetrain: 1 inlet and 1 outlet valve per cylinder
Fuel system: Zenith carburettor
Fuel type: 72 octane
Oil system: Dry sump pressure lubrication
Cooling system: air
= Performance
=Power output: 56 kW (75 hp) at 2,650 rpm
Cruising power: 42 kW (56 hp) at 2,400 rpm
Specific power: 19.7 kW/L (0.43 hp/cu in)
Compression ratio: 6:1
Specific fuel consumption: 235 g/hp hour (0.52 lb/hp hr) at rated power, 220 g/hp hour (0.48 lb/hp hr) at cruise power
Oil consumption: 2 - 6 g/hp hour (0.004–0.013 lb/hp hour)
See also
Related lists
List of aircraft engines
References
Bridgman, Leonard (1951). Jane's All The World's Aircraft 1951–52. London: Sampson Low, Marston & Company, Ltd.
Further reading
Media related to Praga D at Wikimedia Commons
Bridgman, Leonard, ed. (1947). Jane's all the World's Aircraft 1947. London: Sampson Low, Marston & Co. p. 37d.
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