LEADING JET TURBINE Co., Ltd. ATJ TURBINES
9
Installation turbine engine
1. The engine should be mounted using the ATJ engine mount or an
approved equivalent. The securing strap should be tightened gently so
as not to mark the engine casing.
2. Fuel FASTO fitting should be routed similarly clear of the intake.
3. The fuel pump should be mounted at least 300mm away from the front
of the engine. The pump can emit electrical pulses that cause the speed
sensor to transmit incorrect rpm information to the ECU. The fuel pump
should be mounted with the spindle in the vertical position with the
motor uppermost. In the event of any fuel seeping from the pump this
will not pass through the electric motor. Note the pump is supplied
fitted with built in suppression to reduce radio frequency noise.
4. The centre of the fuel tank should be mounted laterally, as near to the
centre of gravity (CG) of the model as possible. This will minimize the
CG shift as the fuel is used during flight.
5. Any air ducting to the inlet of the engine must have a minimum area of
95mm square.
6. If an extended exhaust duct is required, it should be approved by ATJ
turbine. We have found that an exhaust over 90 mm diameter gives
optimum engine performance, base on turbine engine thrust and size.
7. Extreme care should be exercised to ensure that no foreign object,
loose parts of the model. Or debris is allowed to enter the compartment
where the engine is installed.
We recommend testing the engine on a test stand prior airframe
installation. You should have a clear idea of how to arrange the
components needed to run the engine. The main issue is the fuel tank,
you will need to arrange the CG in the centre of the tank and adjust the
receiver and ECU batteries to achieve the correct location.