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The fuel system is designed to deliver clean fuel to the engine at the
pressure and flow that are necessary for all engine operating conditions.
The airframe fuel system contains the necessary boost pumps, transfer
pumps, selector/shutoff valves, strainers and filters required to supply fuel
to the engine(s) and to manage the fuel load distribution in the airplane.
The engine is equipped with a fuel system which consists of a fuel heater,
high-pressure fuel pump, fuel filter, fuel control unit, start control or flow
divider unit and a manifold with fuel injection nozzles.
The fuel control unit is either a hydro-pneumatic or a hydro-mechanical
system which meters the correct amount of fuel to the engine to maintain
the gas generator speed selected by the pilot via the power control lever. It
also controls fuel flow scheduling during engine starting, acceleration and
deceleration.
The PT6A engine is approved for operation with all commercial jet fuels,
JP-4, JP-5 and for a maximum of 150 hours during any overhaul period with
all grades of aviation gasoline. Specific grades of diesel fuel are approved
as alternate fuels for restricted use. No engine adjustments are required
in changing from one fuel to another, nor is it necessary to purge the fuel
system when changing fuels, except when using alternate fuels.
For listings of approved fuels and fuel additives refer to the appropriate
Service Bulletins for each PT6A engine model.
fuel system
The fuel system is designed to deliver clean fuel to the engine at the
pressure and flow that are necessary for all engine operating conditions.
The airframe fuel system contains the necessary boost pumps, transfer
pumps, selector/shutoff valves, strainers and filters required to supply fuel
to the engine(s) and to manage the fuel load distribution in the airplane.
The engine is equipped with a fuel system which consists of a fuel heater,
high-pressure fuel pump, fuel filter, fuel control unit, start control or flow
divider unit and a manifold with fuel injection nozzles.
The fuel control unit is either a hydro-pneumatic or a hydro-mechanical
system which meters the correct amount of fuel to the engine to maintain
the gas generator speed selected by the pilot via the power control lever. It
also controls fuel flow scheduling during engine starting, acceleration and
deceleration.
The PT6A engine is approved for operation with all commercial jet fuels,
JP-4, JP-5 and for a maximum of 150 hours during any overhaul period with
all grades of aviation gasoline. Specific grades of diesel fuel are approved
as alternate fuels for restricted use. No engine adjustments are required
in changing from one fuel to another, nor is it necessary to purge the fuel
system when changing fuels, except when using alternate fuels.
For listings of approved fuels and fuel additives refer to the appropriate
Service Bulletins for each PT6A engine model.
fuel system
Summary of Contents for PT6A Turboprop
Page 1: ...Key NEW OWNER WISDOm YOUR PT6A turboprop ...
Page 5: ......
