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
editFrom 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
editEngines on display
editSpecifications (HFM-2)
editData 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
See also
editComparable engines
Related lists
References
edit
Wikimedia Commons has media related to Haacke HFM 2.
- ^ "Aerodromas » History". aleksotasair.lt. Archived from the original on 2017-02-24. Retrieved 2017-02-23.
- ^ a b "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.
- ^ a b "Rieseler I and II". Archived from the original on 26 October 2021. 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". Archived from the original on 15 October 2022. Retrieved 26 February 2017.
- ^ "The Udet Sporting Two-seater". Flight. XV (10): 122.