BMW 802

The BMW 802 was an air-cooled aircraft engine with 18 cylinders arranged in two 9-cylinder stars in a row ( radial engine ). Bore and stroke were related as in the BMW 801 for each 156 mm. The engine capacity was accordingly 53.67 l

As with almost all multiple radial engines, the rear star was offset so that the cylinders were not obscured by those of the front star. The cooling air could flow onto the cylinder of the rear so the star directly.

A single-stage, three-speed mechanically driven supercharger made ​​for a take-off power of 2,600 hp. In 12,000 m altitude, the power was still 1,600 hp. The transmission was a four-leaf air adjustment screw with a 3.80 m diameter. BMW also developed an engine cowling, which enabled improved aerodynamics in inner and outer area. This panel was derived from a similar project of the BMW 801. It does not was employed. The project was set towards the end of World War II on the orders of the Reich Air Ministry (RLM).

P.8011

The engine is based on the BMW 802, but it has two exhaust gas turbochargers and drives two counter-rotating three-bladed propellers. The starting power was 2800-2900 hp.