Haacke HFM-2
The Haacke HFM-2 was a German two cylinder flat engine built in the early 1920s.[1]
| HFM-2 | |
|---|---|
 | |
| HFM-2a on display at the Finnish Airforce Museum | |
| Type | Flat-twin aero engine |
| National origin | Germany |
| Manufacturer | Haacke Motorenbau, Johannisthal (Berlin) |
Variants
From Flight[2]
- HFM-2 (22 kW (30 hp))
- HFM-2a (22–26 kW (30–35 hp)); as HFM-2 apart from 120 mm (4.72 in) bore
Applications
- Albatros L.66[3]
- Dietrich-Gobiet DP.VII[4]
- Działowski D.K.D.1[5]
- Dobi-I[6]
- Gabriel P 5[7]
- Mayenberger amphibian[8]
- Rieseler R.I[9]
- Rieseler R.II[9]
- Rieseler R.III[10]
- Silesia S-3[11]
- Silesia S-4[12]
- Udet U.1[13]
- Udet U.2[14]
Engines on display
- Finnish Airforce Museum
Specifications (HFM-2)
Data from Flight[2]
General characteristics
- Type: Four-stroke horizontally opposed twin cylinder
- Bore: 112 mm (4.4 in)
- Stroke: 140 mm (5.5 in)
- Dry weight: 60 kg (132 lb)
Components
- Valvetrain: Overhead valve
- Oil system: Camshaft-operated twin plunger pumps
- Cooling system: Air-cooled
Performance
- Power output: 22 kW (30 hp) at 1,300 rpm
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References
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Wikimedia Commons has media related to Haacke HFM 2. |
- "Aerodromas » History". aleksotasair.lt. Retrieved 2017-02-23.
- "The Haacke 30 hp aero engine". flightglobal.com. Retrieved 2017-02-23.
- "The German exhibits". Flight. Vol. XV no. 24. 12 June 1924. pp. 384–5.
- "The Dietrich-Gobiet Sport Monoplane". Flight. Vol. XVI no. 21. 22 May 1924. pp. 286–7.
- Cynk, Jerzy (1971). Polish Aircraft 1893-1939. London: Putnam Publishing. p. 601. ISBN 0 370 00085 4.
- Serryer, J (13 March 1924). "Les avions Dobkevicius". Les Ailes (143): 2–3.
- Cynk, Jerzy (1971). Polish Aircraft 1893-1939. London: Putnam Publishing. pp. 584–6. ISBN 0 370 00085 4.
- "Mayenbergen amphibian". Retrieved 26 February 2017.
- "Rieseler I and II". Retrieved 26 February 2017.
- "Rieseler III". Retrieved 26 February 2017.
- Cynk, Jerzy (1971). Polish Aircraft 1893-1939. London: Putnam Publishing. pp. 552–3. ISBN 0 370 00085 4.
- Cynk, Jerzy (1971). Polish Aircraft 1893-1939. London: Putnam Publishing. pp. 594–5. ISBN 0 370 00085 4.
- "Udet U.1". Retrieved 26 February 2017.
- "The Udet Sporting Two-seater". Flight. XV (10): 122.
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