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HomeAircraftHelicopterMain Discussion › What is the Exact Hayes fuel line length for header and main for Raptor 50?
11-22-2006 11:03 PM  11 years agoPost 1
Amarjit

rrApprentice

Chicago, IL

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Hi everyone,

I am searching for the EXACT fuel length for hayes tubing in a raptor 50 ... for both header and main tanks.

I know this fuel line has a tendancy to stretch...was hoping to get some experienced advice from readers based on their recommendations

Thanks so much
Amarjit

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11-22-2006 11:10 PM  11 years agoPost 2
cdrking

rrElite Veteran

Seattle

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I've been using the Hayes for some time now. I just cut it long and try in the tank. Then pull it out and cut a bit. Then flop the tank around again to check it. In other words I just stick it in and test it. Just take the tank in your hand and flop the clunk around to see if it's too long in the tank. Same with the header.

Jeff

To hover is divine, the alternative is rather PLANE.

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11-22-2006 11:13 PM  11 years agoPost 3
BarracudaHockey

rrMaster

Jacksonville FL

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Just fit it as you would normally and then cut about 4mm off.

Andy
AMA 77227
http://www.jaxrc.com

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11-22-2006 11:16 PM  11 years agoPost 4
PaulJC

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Hertfordshire UK

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Just cut it to fit and then go back in a few weeks once its stretched and cut a bit more off lol

Re-entering the atmosphere...

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11-22-2006 11:45 PM  11 years agoPost 5
BarracudaHockey

rrMaster

Jacksonville FL

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And it will turn your fuel black for a tank or two but that doesnt cause any tuning problems.

Andy
AMA 77227
http://www.jaxrc.com

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11-23-2006 01:32 AM  11 years agoPost 6
Yug

rrMaster

UK. Herts

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I've done some tests on the clunk tube length and found that if when holding the heli vertical nose up, the end of the clunk is about 5mm from the end of the tank, you end up with some air in the header after flying 3D. However, if the distance is 10mm, there is very little air in the header.
When you immerse hayes line in fuel for about 3 hours, it expands in length by 10%, then it contracts again when dry. Strange stuff.

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11-23-2006 02:38 AM  11 years agoPost 7
JAGNZ

rrProfessor

Auckland, New Zealand

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Soak it in fuel for a few hours first, then cut it to the correct length, then you know for sure...


Jason Greenwood

www.3dheli.co.nz

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11-23-2006 12:52 PM  11 years agoPost 8
Amarjit

rrApprentice

Chicago, IL

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wow...the reason i ask is that I was performing some hard 3D yesterday,
doing some piro flips and directly into inverted flight. The engine immediately cut off on me...

fortunately, the helicopter gods allowed me to auto it in, and it hit real hard...but was not damaged. I think this was due to air being present in the header tank. Do you recommend then that I cut a piece 10 mm from the bottom?

thanks!
Amarjit

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11-23-2006 01:18 PM  11 years agoPost 9
PaulJC

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Hertfordshire UK

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Do you recommend then that I cut a piece 10 mm from the bottom?
Mine clear the back of the tank by about 5-10mm when stretched lol

Re-entering the atmosphere...

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