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HelicopterEngines Plugs Mufflers Fuel › Engine Leaning when Inverted?
11-13-2005 11:30 PM  12 years agoPost 1
averen

rrVeteran

Austin, TX

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Hey All,
So I was out flying today when I decided I needed to work on some inverted hovering. I haven't really done much (any) inverted work but I decided today was good because there was very little wind and I was feeling gutsy.

I turned her over (nose in) and kept a decent hover for about 30 seconds, when my engine cut out. I managed to auto her in without any damage (first forced and first "inverted" auto...)

I didn't really notice anything but a buddy of mine said that when I was inverted that he couldn't see any smoke coming out of the exhaust, and the engine was pretty toasty when I got her back on the ground too! When she's upright the engine doesn't get excessively hot at all. But apparently when I'm inverted it goes lean...is this normal?

The heli is a Raptor 50v2 with an OS 46 FX-H engine...running 30% Power Master fuel, with a OS #8 glow...

Any help on getting this problem taken care of (or maybe at least how to avoid it...that doesn't involve not going inverted) will be appreciated!

Here's a pic showing the relation of the header to the carb.

Thanks!
Jared

Knowledge is Power, Power Corrupts, Study Hard...Be EVIL!

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11-13-2005 11:49 PM  12 years agoPost 2
cdrking

rrElite Veteran

Seattle

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I'm assuming you checked the internal/clunk line? That's the first thing that I would check.

The other thing is the fuel tank itself, there may be a small hole in it.

Jeff

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11-14-2005 01:31 AM  12 years agoPost 3
averen

rrVeteran

Austin, TX

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Funny that you mention that. I checked it out earlier and that was the problem. The clunk line in the header tank was too long and was catching on the back of the header tank.

Hopefully it's taken care of now, guess I'll find out next weekend.

Thanks!
Jared

Knowledge is Power, Power Corrupts, Study Hard...Be EVIL!

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