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Home✈️Aircraft🚁HelicopterHelicopter Main Discussion › Removing my header tank.
12-11-2013 01:24 PM  5 years ago
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jake21

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ontario canada

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Removing my header tank.
This has probably been discussed before but cant find it in the search.
Who has removed the header tank and flown 3d with out any problems and what did You use for a clunk line?
The only way to not crash is up
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12-11-2013 02:04 PM  5 years ago
Richardmid1

rrProfessor

Leeds, England

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I would definitely use a fuel magnet, the Lynx MOAS fuel magnet is very good. Don't fly right down to the last drop, leave about 15mm from bottom of fuel.60% of the time, it works every time!
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12-11-2013 02:22 PM  5 years ago
wrongler

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Brewerton, New York

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The advantage of the header makes it nearly impossible for the engine to suck air. Without it there is a risk of a lean engine at times.Bill Whittaker
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12-11-2013 02:28 PM  5 years ago
jschenck

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La Vista, NE.

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I have flown my Trex-700's for 4 years now - they have never had a header tank, and the last two years have had a standard clunk. No problems. I usually ended up without a header tank on my Raptor 50 also.

Properly setup main tank clunk lines are not a problem.
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12-11-2013 04:08 PM  5 years ago
meowguy

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Saco, ME

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My 700 and 600 are such fuel guzzlers I like having the extra 2oz of fuel on board. I also like having a visual fuel gauge that's easy to spot on a flyby. I attach my header to the side of the main tank with 3M 4011 double sided tape. You just clean them up good with alcohol before application. I like this better than adding a stand-off which in the event of crash on the starboard side can break the side frames. (How do I know this?)

I use the OS Bubbeless Fuel Clunk in my main tanks and a standard cone shaped clunk in header. Also try to use the very limp fuel tubing in the tanks.
"Sweet dreams and flying machines in pieces on the ground." J. Taylor
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12-11-2013 04:48 PM  5 years ago
Four Stroker

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Atlanta

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What he said. I have a 4 oz. header on one heli that has an 8 oz. tank.
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12-11-2013 05:04 PM  5 years ago
YSRRider

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usa

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I would definitely ditch the header tank. Who needs an extra 60 seconds of flight time when you can auto like a pro!

P.S. LEAN IS MEAN! Run it like you stole it!
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12-11-2013 05:23 PM  5 years ago
Nasty1

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Enf,Ct-USA

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my 700 has a fuel magnet with NO header, a regulated motor, no problems only one flame out, ran the tank too low.

my nx4 has a header tank, last weekend the main tanks clunk line had a small tear, main tank was 50% full and the header was 90+ % full,
motor flamed out.

another set of skids were needed that day.
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12-11-2013 06:02 PM  5 years ago
jake21

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ontario canada

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jschenck. What fuel line do You use? I am going to remove the header for less weight and dont really care about flight time.Trying to remove 1 pound from a plastic Raptor.The only way to not crash is up
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12-11-2013 06:56 PM  5 years ago
WessCo

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Summerville, GA USA

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I've been using Sullivan 1/2A fuel tubing in my non-header tank, stock clunk Titan X50.MikadoUSA
VTeam
OptipowerUSA
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12-11-2013 07:13 PM  5 years ago
datidun

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N Ireland

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I thought of it many times,but im positive i will run into a lean run without a header tank using a standard clunk,fuel magnet i would not chance it,add a bubbless clunk or a bubbless fuel filter if the header is removed.
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12-11-2013 09:53 PM  5 years ago
meowguy

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Saco, ME

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What he said.
I can't believe it. Someone on RunRyder actually agreed with something I wrote.

Taking a pound off a Raptor .50 is not going to be easy. The most worthless thing in general aviation or in model aviation is the fuel you did not put in the aircraft. Think about it and save the weight somewhere else.

The next most useless things are the air above you and the runway behind you.
"Sweet dreams and flying machines in pieces on the ground." J. Taylor
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12-11-2013 10:42 PM  5 years ago
jespicer1

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memphis, tn

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I started flying a nitro 50 in January. I was using the Lynx moas. Every other weekend I was having issues with the clunk line splitting at the nipple.
The moas worked flawlessly, the lynx clunk line is garbage. The clunk it to light for other clunk lines I tried.

I put a old school clunck back in it. I used regular tubing inside the tank instead of think clunk line.
I took a minute off of my timer, down to 7 minute flights and have just under a 1/4 tank of fuel. So plenty left for auto fun.
I have run it this way for 8 months without a single issue.
I am not a smack um up 3D pilot though.
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12-12-2013 12:29 AM  5 years ago
Nasty1

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Enf,Ct-USA

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I use the lynx clunk line, change it maybe 2 times a year.

Cut the fuel tubing with a sharp razor blade on a flat surface. Scissors pinch the line and can cause pre-mature failure. It will split.
AMAIN Heli Team
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12-12-2013 12:40 AM  5 years ago
Dan Minick

rrKey Veteran

Columbus, WI

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i recently build an N5C. did not bother to put the header tank on this time around as i now have a regulated 55hz. i think on a bird this size the weight savings will definitely be noticeable. OS bubbless clunkTeam Synergy, Team FBL Rotors-------if its not broke...it will be!
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12-12-2013 03:09 AM  5 years ago
jake21

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ontario canada

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Deleted.The only way to not crash is up
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12-12-2013 03:40 AM  5 years ago
YSRRider

rrElite Veteran

usa

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These helicopters dont notice if there is a header tank on or not.

I love how an issue that was very common was remedied with a genius idea and then out of no where some much smarter people come in and decide that we've been doing it wrong. Good to have some Aerospace engineers and NASA people in here to help us.
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12-12-2013 03:43 AM  5 years ago
YSRRider

rrElite Veteran

usa

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The best solution for saving weight on a Raptor is to run the electronics off a solar cell and to remove the lead from the blades. They only put the lead in there because most people don't know how to balance them with tracking tape.
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12-12-2013 03:47 AM  5 years ago
jake21

rrApprentice

ontario canada

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YSRRider You think heavier is better?The only way to not crash is up
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12-12-2013 03:55 AM  5 years ago
Ace Dude

rrProfessor

USA

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i recently build an N5C. did not bother to put the header tank on this time around as i now have a regulated 55hz. i think on a bird this size the weight savings will definitely be noticeable.
What's the total weight of the machine and the weight of a header tank?

Something tells me the weight of a 2oz header tank on a N5C is insignificant.
  
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Home✈️Aircraft🚁HelicopterHelicopter Main Discussion › Removing my header tank.
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