Model 502-6 Gas Turbine Engine
Model and type
502-6. Turboshaft,( free turbine), The gas generator incorporates a 1-stage centrifugal compressor,2 through-flow combustors,1-stage axial flow turbine. The power turbine incorporates an axial flow turbine wheel assembly, a planetary reduction gear.
Air inlet in front of unit. Single stage centrifugal, Single-entry impeller mounted on main shaft supported in 2 bearings. one ball, one bushing. air mass flow 3.5 Ib/sec/36,500 rpm.
Two through-flow type.
(Gas generator) 1-stage axial flow turbine. Maximum temperature 1225. F (663)C.
(power) axial flow free turbine wheel attached to main gear train pinion and reduction gear.
Fixed area single outlet,exhausted upward.
Reduction gearbox at rear of unit. Output shaft 2,750 rpm.
Woodward integral fuel system. pump, governor, internal relief valve, and flow control.
2 Bendix air-gap, ignition system. and 2 glow-type igniters.
Sump type, 35-70 psi Pressurized system.
Width and height
23.20 in and 23.34 in
Kerosene, or Jet-A
Oil spec; consumption
160 shp at 23,725 rpm power turbine rpm.
Copyright © 1998 Avon Aero Supply, Inc.