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  1. #1

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    PITA pneumatic lines!

    Any good techniques to install the air lines to the retracts & fittings? There must be an easier way[:@]
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  2. #2
    mr_matt's Avatar
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    RE: PITA pneumatic lines!

    Chew on the end of them before you put them on.
    Matt

  3. #3
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    RE: PITA pneumatic lines!

    get someone else to do em.
    Bottom Feeder Brother #13
    when they outlaw R/C, only outlaws will have R/C
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  4. #4
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    RE: PITA pneumatic lines!

    Wow some real helpful people in here. I use a lighter and briefly (VERY briefly) heat the very tip of the airline itself. I mean a quick pass with the flame. That softens and enlarges the opening just enough to let you slide them onto the retract nipple. And once it cools it will shrink back down and the fit is airtight. Done this for years with no issues. Works like a charm and I feel your pain. The DAY that air systems no longer exist can't come soon enough.

  5. #5
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    RE: PITA pneumatic lines!

    I use this from BVM

    BVM O ring lube

    Jason

  6. #6
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    RE: PITA pneumatic lines!

    I run a small hydraulic and Pneumatic engineering company. I saw this trick being used by one of our fitters in the workshop while installing small push on pneumatic lines and couldn't believe how well it worked until I tried it.

    Rub the end of the tube against the side of your nose where it joins your face and then slip it straight on the nipple. A little extra skin oil gets trapped here and is the perfect lubricant to allow the tube to slip on.

    Please do not refer any cases of industrial dermatitis to me!

    Malcolm

  7. #7
    Dr Honda's Avatar
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    RE: PITA pneumatic lines!


    ORIGINAL: Pepperpete

    Wow some real helpful people in here. I use a lighter and briefly (VERY briefly) heat the very tip of the airline itself. I mean a quick pass with the flame. That softens and enlarges the opening just enough to let you slide them onto the retract nipple. And once it cools it will shrink back down and the fit is airtight. Done this for years with no issues. Works like a charm and I feel your pain. The DAY that air systems no longer exist can't come soon enough.

    I've never had luck with that. Every time I've used heat... they leak.
    Tony
    Owner of A&L Motorsports, LLC

  8. #8

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    RE: PITA pneumatic lines!

    Face and then slip it straight on the nipple
    Now.. that I'm going to try tonight
    It's a hobby - keep it simple

    www.332ndredtail.com

  9. #9

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    RE: PITA pneumatic lines!

    Thanks guys. I want this to be easy!!! So I'm gonna chew it, rub it on my nose, stick it in BV O'lube, set it on fire (briefly), then stick it on the nipple! #GetErDone
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  10. #10

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    RE: PITA pneumatic lines!

    After that, go to the gynecologist, HA///


    ENT

  11. #11
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    RE: PITA pneumatic lines!

    Did I miss something here? Are you saying you have a hard time simply pushing the end of a small plastic tube over a metal, barbed, air nipple?

    Is this right? OK, where are the hidden cameras?? I have all types and brands of air lines, and I have NEVER had a problem pushing them on the barbs... I think you need to develop those pinching muscles in your fingers..

    Don't mean to sound cruel.. but really?

    Pepperpete - from what I have observed so far regarding electric retracts, you can have them. Unreliable and no where up to the task, and easy to burn out the control boards where the overcurrent protection utterly failed. Current costs are over the top in comparison to standard air, and I don't think there is even a close savings in the weight. All my sets can hold over 100lbs for DAYS, before you see them starting to lose pressure.
    Oh great are the days my landings = my take-offs....!
    Merlin 160, Jet Central Falcon, Rabbit 100

  12. #12

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    RE: PITA pneumatic lines!

    Use a small piece of sandpaper (120 - 150 grit) between your finger and the tubing. The sandpaper allows you to grip the tubing as your fingers do not slide on the paper and the sandpaper side grips the tubing. Works everytime!!!!

    Not the best picture but should give you the idea.
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    John Redman
    JetCat USA

  13. #13
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    RE: PITA pneumatic lines!


    ORIGINAL: John Redman

    Use a small piece of sandpaper (120 - 150 grit) between your finger and the tubing. The sandpaper allows you to grip the tubing as your fingers do not slide on the paper and the sandpaper side grips the tubing. Works everytime!!!!

    Not the best picture but should give you the idea.
    John
    Looks like something an Old Jet Cat rep would use... Works the first time & everytime
    Semper Fi
    Joe

    Look towards the Horizon......your death awaits you there So Enjoy today ,,,,,,

  14. #14
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    RE: PITA pneumatic lines!

    Hey someone forgot to suggest chew gum and rub your belly at the same time! LOL
    Cincinnati Jet Club, Team Futaba, Esprit Models

  15. #15

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    RE: PITA pneumatic lines!

    A trick we use here at work is to get a cup of hot water and dip the tube into the hot water for a few seconds before installing it onto the barb fitting; this along with Johns tip of the sandpaper should make it totally painless.
    I use my real name and am not sponsored by anyone but myself

  16. #16

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    RE: PITA pneumatic lines!

    So far between the rubbing in the corner of the nose & the sandpaper trick, LIFE IS GOOD! piece of cake! Guess I can't shower until I'm finished though..lol I think a lil O-lube would be great too.. Thanks a million!!!
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  17. #17

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    RE: PITA pneumatic lines!

    Hey Ron, was it you about 10 years ago, when I came into a hobby shop with Richard Moch & bought that BV twin Rafale from Eric? If so, I remember you guys were painting a nice BV Phantom & gave me some good painting pointers I've used ever since.
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  18. #18
    Xairflyer's Avatar
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    RE: PITA pneumatic lines!

    When I am plumbing up a fuel system that has barbs (pump, valves etc) with the festo tube, I use a method that I discovered when fitting pitot tubes to gauges on fullsize aircraft. This was to inject a tiny amount of turbine oil (I keep some in a syringe) into the end of the tube, then heat the end with a hot airgun/lighter, the oil stops the tube from deforming or going wobbly and also provides lube, tube just slips on and looks perfect every time.

    Obviously you select the oil to suit application, for retract pipes use a silicone oil.
    www.letterkennymodelflyingclub.com
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  19. #19
    FalconWings's Avatar
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    RE: PITA pneumatic lines!


    ORIGINAL: BlueBus320

    Hey Ron, was it you about 10 years ago, when I came into a hobby shop with Richard Moch & bought that BV twin Rafale from Eric? If so, I remember you guys were painting a nice BV Phantom & gave me some good painting pointers I've used ever since.
    Was that one of the 3 Bucaneros Ive built?
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  20. #20
    mr_matt's Avatar
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    RE: PITA pneumatic lines!

    Never knew that sandpaper trick! And for chewing the lines, i forgot I mainly do that on the 4 mm urethane fuel tubing. For airlines I love the stuff that Ultra Precision sells.
    Matt

  21. #21

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    RE: PITA pneumatic lines!


    ORIGINAL: FalconWings


    ORIGINAL: BlueBus320

    Hey Ron, was it you about 10 years ago, when I came into a hobby shop with Richard Moch & bought that BV twin Rafale from Eric? If so, I remember you guys were painting a nice BV Phantom & gave me some good painting pointers I've used ever since.
    Was that one of the 3 Bucaneros Ive built?
    Hey Falconwings, this one is not one that you built, but if your name is David R. you sent me a few really cool pics of a JL-16 (I think) when I was first picking a scheme
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  22. #22
    FalconWings's Avatar
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    RE: PITA pneumatic lines!


    ORIGINAL: BlueBus320


    ORIGINAL: FalconWings


    ORIGINAL: BlueBus320

    Hey Ron, was it you about 10 years ago, when I came into a hobby shop with Richard Moch & bought that BV twin Rafale from Eric? If so, I remember you guys were painting a nice BV Phantom & gave me some good painting pointers I've used ever since.
    Was that one of the 3 Bucaneros Ive built?
    Hey Falconwings, this one is not one that you built, but if your name is David R. you sent me a few really cool pics of a JL-16 (I think) when I was first picking a scheme
    Yes that was me. You did a great job on it, is it a Tams?
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  23. #23

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    RE: PITA pneumatic lines!

    The sand paper sounds good. I have allways used paper towels to hold the line with, That helps a lot.

  24. #24

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    RE: PITA pneumatic lines!

    Yep, Tams.. I wasn't looking to do anything fancy/pretty, just an old dirty American war dog. Bucanero's was perfect[8D] & thanks
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  25. #25

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    RE: PITA pneumatic lines!

    Guys. Guys. Slip the end of that tube up on a small Hemostat and pull the handles apart for a five count to stretch it and slip it right on.
    Scratch it till it bleeds Convert it till it chokes


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