Turbine Battery; Charging The Turbine Battery; Fuel / Fuel Supply - GRAUPNER JetCat P60 Instructions D'utilisation

[Seite 9]
Connect fuel
valve to bottom
socket.
[Seite 10]

Turbine battery

All the turbine's operating components (starter motor / glowplug / ECU / fuel pump / valves ...) are powered
by a 6-cell battery which is connected directly to the ECU. The power supply to the ECU is automatically
powered up when you switch on the receiver. During each flight (duration approx. 10 min, including starting
and post-flight cooling processes) the battery has to supply around 300 - 400 mAh capacity. The rapid-
charge 1250 mAh NiCad battery supplied must therefore be recharged every three flights, if not sooner!

Charging the turbine battery

It is important to disconnect the turbine battery from the electronics prior to charging, as many currently
available battery chargers send negative pulses to the battery to avoid the formation of gas in the cells, and
these negative voltage pulses would wreck the electronics (ECU). If you are sure that your charger does not
operate in this way, you can leave the battery connected and charge it using a Y-lead - but only if you are
absolutely certain! The electronics must never be directly connected to a charger (i.e. without a battery
connected).

Fuel / fuel supply

Suitable fuels are kerosene or Jet-A1 aviation fuel, to which turbine oil must be added at the rate of 5% by
volume.
Approximate formula:
1 litre oil to 20 litres fuel
Special turbine oil should always be used as lubricant, e.g. Aeroshell 500, Order No. 2650, or similar.
Connect propane
valve to bottom
socket (below
AirSpeed input)
8