Wren 44 Kerostart Supplement
Copyright Wren Turbines Ltd 2012. All rights reserved.
Page
7
Setting up to run engine:
Turn on the receiver and verify the screen shows a reading.
Go into the 3rd screen and enter the “RADIO
”
menu and
perform the transmitter setup if not already completed.
Connect the LiPo battery. Turn on fuel if you have fitted a shutoff
tap between pump and valves (preferred position).
Ensure trim and stick are at zero. Enter “INFO” menu and go
down the entries until you get to “test” functions. Find
“Test/Prime Pump”. Press “On” button to turn on fuel pump and
watch fuel travel along from the tank to the engine. Press “Off”
to stop.
Go further down “INFO” menu to “Prime Burner On Off”. Press
“On” button and watch fuel travel to burner, then press “Off” to
stop. Do not prime longer as you risk pouring fuel into the
engine which will cause a flaming start. Small bubbles in the
pipes at this stage will not prevent a start, just delay it.
Place the engine/plane into a suitable place and prepare for a
start. Use helper if required to restrain model.
Position fire extinguisher – if you get into trouble place trim
down, stick down immediately to halt the start. Then energise
the starter by raising the stick to full to spin the engine up to
clear.
If you have a fire, position C02 extinguisher nozzle at engine
intake
and use short bursts to put out.
