The 802 was eventually projected to be capable of producing 3000 horsepower , a power level that the Duplex-Cyclone would equal and surpass in the post-war years, up to some 2,610 kW (3,500 hp) through a trio of power-recovery turbines per engine in their exhaust systems in later subtypes, mechanically connected to the Duplex-Cyclone's crankshaft.