The Evolution was originally designed for a TAS of 338 KTAS @ FL250. Current aircraft are realizing cruise speeds of 308 KTAS. In collaboration with the original Program Manager of the aircraft, Aerotek Aviation has decided to improve this already excellent aircraft design.
The cowling and installation package (firewall forward) required re-design in order to meet P&W installation recommendations. We are utilizing the 850 SHP (1080 THP) PT6A engine (-41, – 42 from the popular Beechcraft king-Air 200). This allows the engine to maintain 550 SHP up to FL250 as intended in the original design. The extra horsepower coupled with better fuel specifics at altitude allow the pilot to cruise much closer to the intended design cruise speed. In addition, cruise speeds comparable to PT6A-135A powered Evolutions can be achieved with a reduction in fuel flow due to the -41/-42 better power section. The new firewall forward package includes:
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