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GTP 70-52 GAS TURBINE ENGINE |
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Model and Type
GTP 70-52 Turboshaft, 2- stage centrifugal compressor, 1 combustion chamber, 1-stage
turbine
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Compressor
1st stage and 2nd stage single -entry impellers pressed and pinned on shaft supported in
plain bearing at front and in ball bearing at rear. Radial diffuser. pressure ratio 3.3:1,
and air mass flow 2.0 lb. sec, at 40,800 rpm.
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Combustor
Reverse air flow. 1 duplex fuel burner.
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Turbine
Radial inflow type. Turbine wheel with integral shaft supported in 2 ball bearings ahead
of wheel. Exhaust temperature 1310 F (710C)
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Exhaust
Fixed area single exhaust outlet. |
Power take-off
Reduction gearbox at front of unit. Output shaft 6,000 rpm. |
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Control System
Electro-pneumatic type. Automatic starting. Acceleration, load and speed controls.
Pneumatic exhaust temperature limiter. |
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Fuel System
AiResearch integral fuel system. Pump, 230 psi, governor, internal relief valve, and flow
control with filter-all incluster. |
Ignition System
Bendix-Seintilla or G.L.A. ignition. 1 igniter. |
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Lubrication
Dry sump system, 90 psi air cooled oil cooler, tank. |
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Width and height
30.0 in and 25.0 in. |
Length
31.0 in. |
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Weight
200 lb. |
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Fuel specification
Gasoline, Kerosene, JP-4,8 JP-5 |
Fuel consumption
1.7 Ib/shp-hr |
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Power/Weight
0.71 shp/lb. |
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Oil specification
Mil -L-23699, L-7808 |
Oil Consumption
0.02 phr. |
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Rating Max cont.
160shp/40,800 rpm/sea level. |
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