Hirth HM 501
The Hirth HM 501 is a German aircraft engine from the Second World War .
development
The HM 501 appeared in 1939 at the same time as the HM 500 as its six-cylinder version and as the successor to the HM 506 A , which it replaced. From it, the structure unit with cylinders was crank drive and control over, the mold was changed the crankcase of electron having a closed tunnel shape with pressed-in bearing rings for crank and camshaft received. In addition, the oil tank, which was previously located inside the housing, was moved to the outside and all add-on parts were placed on the rear of the engine to reduce the front resistance. The HM 501 did not go into series production because the aviation industry did not develop suitable aircraft types for the performance class it covered. As a test, it was installed in a Fw 44 and also served as a drive for the Ar 231 .
construction
The HM 500 is an air-cooled six-cylinder , four-stroke , in- line engine with single-row suspended cylinders , automatic ignition and fresh oil dry sump lubrication . Starting can be carried out both electrically and manually.
Technical specifications
| Parameter | Data (HM 501 A) |
|---|---|
| length | 1272 mm |
| width | 485 mm |
| height | 662 mm |
| drilling | 105 mm |
| Hub | 115 mm |
| Cylinder displacement | 0.995 L. |
| Total displacement | 5.970 L. |
| compression | 6.2 |
| Firing order | 1-5-3-6-2-4 |
| Starting power | 160 PS (118 kW) at 2550 rpm |
| Climb performance | 145 hp (107 kW) at 2470 rpm |
| Continuous output | 130 hp (96 kW) at 2380 rpm |
| Displacement | 26.80 hp / l |
| Dry matter | 148 kg |
| Installation dimensions | 155 kg |
| Performance mass | 0.93 kg / hp |
| Fuel consumption | 230 g / PSh with take-off power 220 g / PSh with climb and continuous power |
| Lubricant consumption | 2-3 g / PSh |
| Octane number | 80 |
Individual evidence
- ↑ Bruno Lange: Type manual of German aviation technology . In: German aviation . tape 9 . Bernard & Graefe, Koblenz 1986, ISBN 3-7637-5284-6 , pp. 317 .
- ↑ Kyrill von Gersdorff, Kurt Grasmann: Aero engines and jet engines . In: German aviation . Bernard & Graefe, Munich 1981, ISBN 3-7637-5272-2 , pp. 128 .
- ^ Helmut Schneider: Airplane Type Book . Handbook of the German aviation and accessories industry. Reprint of the original edition from 1944. Gondrom, Bindlach 1986, ISBN 3-8112-0484-X , p. 394/395 .