Cox Dragonfly Questions - Page 2 - RC Groups
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Feb 13, 2013, 04:39 AM
Registered User
surfer_kris's Avatar
Originally Posted by GallopingGhostlr
surfer_kris, they no longer have these kits and the line they now sell is not thin walled.
Yes, their current small line is not thin walled enough. Have you tried contacting them? They really make an effort to have a full range of parts and accessories, and if there is enough demand I'm pretty sure they'll provide it.
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Feb 13, 2013, 05:24 AM
Vintage Aircraft Lover
GallopingGhostlr's Avatar
No, I haven't contacted Bernie yet. It's the same problem with 2 Norvel 1 oz. RC tank mounts I purchased some time back. It came with the normal small silicon fuel line, which with the lightweight clunk, does not work.
Feb 13, 2013, 11:00 AM
Registered User
surfer_kris's Avatar
For regular, but small tanks, I have used the following 2x4 mm line; Tower H (HPI)

It has a thinner wall the a typical "small" fuel line, but it will still be a little too stiff for the Dragonfly I believe, as the stock one is even smaller and thinner.
Feb 14, 2013, 08:22 AM
Registered User
Originally Posted by silvaire
I think silicone wire insulation of some size would probably work well, but I haven't tried anything yet.
I've been using silicone wire insulation almost exclusively on smaller planes. It's very flexible, completely fuel proof and comes in a variety of colors and sizes. The pic with the clunk is a 35mm film can, so it gives you an idea of how flexible the insulation actually is. For the Dragonfly, 14 or 16 gauge wire might work --- the wire size in the pic is 14 AWG. With the smaller engines, fuel flow is so low that tubing ID can be quite small.

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