| Garrett GTP70 Gas Turbine |
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| A common surplus APU found in the USA. A typical Garrett unit featuring a single can type reverse flow combustion chamber and radial impellors. This unit was built to drive a large 400 Hz alternator. A heavey single spool unit which sometimes comes fitted in a metal box type fire-proof enclosure.
These units sometimes appear on ebay.com and are also available from avonaero.com. |
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| Garrett GTP70 Specification Power Output...............................................160 Bhp RPM............................................................40,800 Compressor.................................................Two-stage Centrifugal Impellers Combustion Chamber...................................Reverse Flow Can Type with Single Burner Turbine.........................................................Radial Inflow Impeller Starting........................................................Electric Starter Ignition.........................................................High Energy Fuel System.................................................Gear Pump with Centrifugal Governor, Acceleration and Temperature Controls Lubrication System.......................................Return Dry-Sump with engine driven Oil Cooler and Blower Layout......................................................... Single spool with reduction gearbox, output speed 6,000 rpm. Weight..........................................................91 kg Applications.................................................Airborne APU and GPU |