Hirth HM 508
Jump to navigation
Jump to search
The Hirth HM 508 was an air-cooled, eight-cylinder, 60° cylinder bank angle inverted-V aircraft engine built in Germany in the 1930s.[1] It had a bore and stroke of 105 mm × 115 mm (4.1 in × 4.5 in) and developed 210 kW (280 hp) at 3,000 rpm.
Variants
- HM 8U
- HM 508A
- HM 508B
- HM 508C
- Template:Cvt[2]
- HM 508D
- Template:Cvt at 3000 rpm[3]
- HM 508E
- Template:Cvt
- HM 508F
- HM 508G
- HM 508H
- Template:Cvt, low fuel consumption variant, with centrifugal supercharger geared at 3.86:1 crankshaft speed for long-range record breaking aircraft.
Applications
- Ambrosini S.7
- Gotha Go 146
- Gotha Go 149
- Heinkel He 116
- IMAM Ro.63
- Messerschmitt Bf 108
- Siebel Fh 104
- Weserflug We 271 Experimental aircraft
Specifications (HM 508D)
Data from Flugzeug-Typenbuch. Handbuch der deutschen Luftfahrt- und Zubehör-Industrie 1944,[4] Jane's fighting aircraft of World War II,[3] Jane's all the World's Aircraft 1938[5]
General characteristics
- Type: 60° V-8, inverted air-cooled piston engine
- Bore: Template:Cvt
- Stroke: Template:Cvt
- Displacement: Template:Cvt
- Length: Template:Cvt
- Width: Template:Cvt
- Height: Template:Cvt
- Dry weight: Template:Cvt dry, unequipped
- Template:Cvt wet, equipped
Components
- Valvetrain: 1 inlet and 1 exhaust under-valve per cylinder driven by pushrods and rockers
- Supercharger: Centrifugal supercharger geared at 4.47:1 crankshaft speed
- Fuel system: 2x Pallas-Zenith 65 VAH2 carbutettors
- Fuel type: 87 Octane gasoline
- Oil system: Pressure system for crankshaft, pistons and reduction gear at Template:Cvt: splash lubrication for camshaft and supercharger
- Cooling system: Air-cooled
- 1x Double Bosch magneto
Performance
- Power output:
- Template:Cvt at 3,000 rpm (5 minutes) at sea level
- Template:Cvt at 2,920 rpm (30 minutes) at sea level
- Template:Cvt at 2,790 rpm (max. continuous) at sea level
- Compression ratio: 6.2:1
- Specific fuel consumption: Template:Cvt at max continuous
- Oil consumption: Template:Cvt at max continuous
- Power-to-weight ratio: Template:Cvt
- B.M.E.P.: Template:Cvt
- Reduction gear: Stoekicht sun and planet gears 0.666:1
See also
Comparable engines
Related lists
References
<templatestyles src="Reflist/styles.css" />
Script error: No such module "Check for unknown parameters".