Transmission fan. There are 2
magnets in opposing fan blades
Connection cable for fan rpm.
Connect to Exp input on the ECU
The fan should be mounted on the main shaft first. Secure it with the collar.
Fasten the rpm sensor with the hex bolts to the gear housing using blue loctite. Make sure that
clearing between the sensor and the fan is not more than 1mm.
Power Supply
Power for all electrical components of the turbine (starter / glow plug / ECU / fuel pump /
fuel and gas valves) are supplied by the six-cell, 1250 mah ECU battery. The amount of
battery capacity used per flight is approximately 300-400 mah. This includes starting
and cool down. The ECU NiCad battery
must
be recharged after two (2) flights!
JETCAT USA
recommends recharging after every flight, making it a routine that is not
overlooked. The battery should be cycled periodically, to prevent NiCad memory
problems that lower the battery’s capacity. If you use Lithium batteries, we suggest
unplugging the ECU at the end of the day to prevent over discharging.
Charging the Battery
Do not charge the battery, with a quick charger using negative discharge pulses, when
connected to the ECU. This will destroy the electronics of the ECU. The only
recommended method is to disconnect the battery from the ECU and charge it directly.
If you are absolutely sure that this is not the case with your charger, the battery can be
charged using a Y cable.
Glow Plug
A modified, (non-idle bar) glow plug (McCoy 9) is appropriate. The glow plug is installed
on the turbine with the washer. Do not over-tighten or you may damage the threaded
bushing. Light torque is fine; there is no vibration to loosen it. The glow plug is modified,
so that two turns of the element extend beyond the bottom of the plug. With a pin, pull
out two turns of the element. Make sure the plug glows brightly red. The limits menu
features an adjustment for glow plug voltage. If high voltage plugs are used (Rossi R8),
a higher value than the default will be required. This adjustment is described later.
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