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HelicopterThunder TigerRAPTOR 30 › Out of power due clunk line failure - Too Close to Crash
10-24-2009 11:09 PM  8 years agoPost 1
spiacro

rrApprentice

Athens, Greece

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Hi all,

today I went to make a flight with my helicopter (Raptor 30v2). I burned the first tank and everything went well. Noteworthy that recently I had changed clunk line, because I had problems with the engine tuning. When it was time for the second flight, I took off normaly and after 5 minutes, while I made hover at 5-6 meters height, the engine stopped. I landed as long as smoothly I could (I do not know to make autos) and while I wondered why the engine stopped, I observed that header tank was empty and the main tank was almost full. I understood that something didn't go well with clunk line. The reason that stopped the engine, appears in the first photo. I have put a piece of white tube into spoiled tube in order you can see the cut. With this clunk line I had burned only 5 tanks. I placed a new clunk line and I added an extra tube ring for safety as it appears in the second photograph. I consider that possibly it is better. Is it right or not? I am afraid that if this happens again, I 'll not be so lucky.. Does anybody know why the clunk line cutted this way? For what reason? Any suggestions?


Spiros

Engine is the HEART of an r/c model, but THE PILOT is it's SOUL.

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10-25-2009 01:47 AM  8 years agoPost 2
GREYEAGLE

rrElite Veteran

Flat Land's

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Looks like

Did you splice in a section of Neoprene instead of Silicone ? It's looks pretty dark. replace the whole section if possible.

If your sources are pretty limited on the island, you may need to check out like a aquarium fish shop and see what they have for tubing you may find silicone in a few different sources.

greyeagle

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10-25-2009 03:47 AM  8 years agoPost 3
jschenck

rrProfessor

La Vista, NE.

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I placed a new clunk line and I added an extra tube ring for safety as it appears in the second photograph. I consider that possibly it is better. Is it right or not?
Yes! I do that with all my fuel tubing connections.

I agree, the replacement fuel line looks like maybe the wrong material. Look for silicone tubing, or better yet Hayes black clunk line.

http://www.readyheli.com/Hayes_clun..._p/hayq0249.htm

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10-25-2009 08:33 PM  8 years agoPost 4
spiacro

rrApprentice

Athens, Greece

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Did you splice in a section of Neoprene instead of Silicone ? It's looks pretty dark. replace the whole section if possible
I agree, the replacement fuel line looks like maybe the wrong material. Look for silicone tubing, or better yet Hayes black clunk line.
I bought it from a model shop and I asked for silicone. Simply I bought orange colour.

Thank you for your replies.


Spiros

Engine is the HEART of an r/c model, but THE PILOT is it's SOUL.

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HelicopterThunder TigerRAPTOR 30 › Out of power due clunk line failure - Too Close to Crash
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