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Old 03-23-2009 | 10:13 PM
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georbeckha
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From: Swartz Creek, MI
Default RE: Engine Fires...

Mace,

The first time they said that the speed sensor magnets got demagnetized so it didn't know exactly how fast the engine was running. This caused the shaft to bend and the result was the destruction of the engine, flames and a little singing of the wood.
The pictures up there are of the rebuilt engine doing pretty much the same thing, but this time the flames took hold.

In the picture attached here you can see a white patch in the middle of the runway behind the model. that is where it come to rest. Probably my best landing job so far with the ShockJet. It's amazing considering I was yelling to the peanut gallery that there was a fire and they just sat there watching (They say they didn't hear me) and I was watching the flames eating my plane.

The Filter I have in line was actually standing upright. I think it got twisted around when the fuel line got pulled tight when the engine seized and torqued around.

George



ORIGINAL: Mace


ORIGINAL: georbeckha

I had a little flame problem this past weekend...
Flames were orange/transparent (Hard to see)

The ECU measured the last temp as 1045 degree centigrade (Well over 2000 Fahrenheit) when the normal full power operating temp should read no more than 600 F

This was not caused at engine startup by the way. this was after about 2 minutes into the flight. Looking at the Elevator and rudder servo leads I think I'm lucky to get it back in one piece (So to speak)

georbeckha

What were the results after talking with the folks at Jetcat? Are you still running your fuel pump filter on its side like in the pictures of the Shock Jet? I think they recommend mounting it vertical to eliminate any air that could get trapped. I am interested in learning what is causing your overspead and overtemp problems.

MACE
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