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Starter Generator – DC 250SG Series
The 250SG Series DC Starter Generator is manufactured or cataloged by Aircraft Parts Corp. (Skurka). The Starter-Generator is used as an engine-driven source of DC power in a 28-volt aircraft electrical system and as a source of starting power for lightweight turbine engines. An efficient integral fan draws air in at the anti-drive end of the generator to permit self-cooled operation. The DC output is 30 Volts and 250 Amperes with a continuous operating speed of 12,000 RPMs. The external starting power is 28 VDC Max and 800 Amperes Max. Generally, these Starter Generators are used on turboprop aircraft serving the commercial and military sectors.
Part numbers within this series include but may not be limited to 250SG111Q, 250SG112Q, 250SG114Q,
250SG115Q, 250SG116Q, 250SG117Q, 250SG118Q, 250SG120Q, 250SG122Q, 250SG123Q, 250SG123Q-2, 250SG124Q, 250SG125Q, and 250SG127Q.
Ayres, Ayres S2R-T41, Ayres S2R-T65 Thrush Commander, Beechcraft King Air 100, Beechcraft King Air 90, DeHavilland UV-18, DHC-6 Twin Otter, Dornier 228, Douglas DC-3 Turbine, EDO MK105, Embraer EMB 110, Piper Cheyenne PA31
250SG111Q, 250SG112Q, 250SG114Q, 250SG115Q, 250SG116Q, 250SG117Q, 250SG118Q, 250SG120Q