ENGINE MANUAL
IAE50R – AA
E1.01.05 – E
Issue date: 25.Jan.2018
Page: 18-3
Revision no: 9
18.3.3
Fuel filters
No fuel filters are provided by Austro Engine GmbH. Therefore a filter of 40 microns or better
with a flow capacity of least 80 liters per hour at 0.1 bar pressure drop must be fitted in the
fuel delivery line after the pumps.
18.3.4
Pressure Regulator
No fuel pressure regulator is supplied with this engine. It is the responsibility of the aircraft
manufacturer / installer to provide the injector with the fuel regulated at three bar pressure. A
manifold depression tapping points is provided at the throttle body spacer for connection to
the pressure regulator.
18.3.5
Water in Fuel
The fuel system shall incorporate suitable means if isolating, removing, and checking for the
presence of water in the fuel system before each flight.
18.3.6
Fuel Lines
Fuel lines must be routed away and protected from hot engine and exhaust components. Fuel
line should be of sufficient quality and appropriate to the pressures transmitted. Fuel hose end
connections must be of threaded taper seat type and should be permanently swaged to the
hoses. Push–on type hose connections are not acceptable for high–pressure fuel systems.
Return hose diameter from the fuel pressure regulator should not be smaller than the fuel
feed hose to the fuel rail.
No primer system is required with fuel injection.
The whole fuel system must be able to allow a minimum fuel
flow rate of 80 liters per hour.
18.4
Oil System
Oil tank is supplied by the aircraft manufacturer but must have a minimum usable capacity of
500 ml for each hour of engine running with a strainer of mesh size not larger than 0.5 mm.
Line connections:
The oil connection line between the tank and the pump should be calculated to provide AT
THE PUMP INLET a minimum flow of 8 ml per minute at -10 °C by gravity flow rate. The flow
rate of the pump is pre–set and will not require adjustment.
