I was wondering what version of the FOKKER DVII we have in game. there were three different engines available for the DVII...the standard engine,the high compression engine and the overcompressed BMW engine.all maunfacturers used all three enginegs,with overcompressed BMW equiped a/c designated DVII F. the thing that made the DVII change from a great fighter to an outstanding a/c was the bmw engine
The engine was successful, but the real breakthrough came in 1917, when Max Friz integrated a basically simple throttle butterfly into the "high-altitude carburettor", enabling the engine to develop its full power high above the ground. Burning a special high octane fuel of gasoline blended with Benzole, the carburettor adjusted the richness of the fuel-air mixture according to the aircraft's altitude. It enabled the engine, now dubbed BMW IIIa, to develop a constant 200 horsepower (150 kW) up to an altitude of 2000 meters -a decisive advantage over competitors' engines.this also enable a short burst of power of 230-240hp at low altitude,extended low alt use of extra power resulted in engine detonation.
German and British horspower ratings apparently differed. Postwar British tests put the rating of the BMW IIIa at 230 hp. This corresponds to British ratings of the Mercedes DIIIa engine being rated by the British as 180 hp (German rating of 170 hp) and the DIIIau at 200 hp (German-180 hp). This discrepancy may explain the significant difference in performance of the BMW IIIa equipped Fokker D.VIIF both against Mercedes powered D.VII's and their Allied opponents. The standard German Pferdstärke metric horsepower unit was expressed in the early 20th century as being a unit of almost exactly 735.5 watts, while the British unit for mechanical horsepower was based on the older 33,000 ft-lb/min figure, which translates to 745.7 watts instead. wish we had the F dvii
