Fuel tank set-up!
05-12-2010 | 06:44 PM
#1
Fuel tank set-up!
<div></div><div>So I am somewhat familiar with how an RC tank sets up. Currently, in my trainer it is an open engine set up, plenty of access. I disconnect the pressure line and the fuel line to the carburetor, then fill the tank threw the fuel line over spilling into a small external overflow tank, (waste no fuel) then hook it all back up again and fly, repeat over and over. So my question is soon I will have more sophisticated set up’s that will not allow or at least be very cumbersome to do it this way. I have seen some fuel line fillers that are Y's, and you just fill threw it. Being most tanks only has three inlets, one for carb, one for pressure and one for overflow. So what is the preferred way to set up a tank?</div><div></div><div>Thanks</div><div></div><div>TB</div>
05-12-2010 | 07:05 PM
#2
My Feedback: (1)
RE: Fuel tank set-up!
I would never use a fueling valve they are expensive and redundant as well as on occassion can cause running problems.
My preferred method is exactly as you do with your trainer except you make a brake in the carb line where it is accessable with a short piece of brass tube. That is where you fuel from. I have never found a glow plane yet with an unpumped fuel system that needed any more than a two line system. The exposed part of line supplies an easy place to allow pinch tuning of the engine.
John
My preferred method is exactly as you do with your trainer except you make a brake in the carb line where it is accessable with a short piece of brass tube. That is where you fuel from. I have never found a glow plane yet with an unpumped fuel system that needed any more than a two line system. The exposed part of line supplies an easy place to allow pinch tuning of the engine.
John
05-12-2010 | 07:05 PM
#3
RE: Fuel tank set-up!
if you have an open engine setup i would stick with two lines.... if you have a cowled set up i would use 3 lines (dual clunk).... one to fuel/defuel you would need a fuel dot http://www.hangar-9.com/Products/Def...?ProdID=HAN115 , a line to carb, and a line to the exhaust... the other option would be to use a y or t in the line...i try to stay away from that though...
05-13-2010 | 08:52 AM
#5
Joined: Aug 2007
Posts: 521
Likes: 0
Received 1 Like
on
1 Post
From: ChelmsfordEssex, UNITED KINGDOM
RE: Fuel tank set-up!
ORIGINAL: TonyBuilder
<div></div><div>So I am somewhat familiar with how an RC tank sets up. Currently, in my trainer it is an open engine set up, plenty of access. I disconnect the pressure line and the fuel line to the carburetor, then fill the tank threw the fuel line over spilling into a small external overflow tank, (waste no fuel) then hook it all back up again and fly, repeat over and over. So my question is soon I will have more sophisticated set up’s that will not allow or at least be very cumbersome to do it this way. I have seen some fuel line fillers that are Y's, and you just fill threw it. Being most tanks only has three inlets, one for carb, one for pressure and one for overflow. So what is the preferred way to set up a tank?</div><div></div><div>Thanks</div><div></div><div>TB</div>
<div></div><div>So I am somewhat familiar with how an RC tank sets up. Currently, in my trainer it is an open engine set up, plenty of access. I disconnect the pressure line and the fuel line to the carburetor, then fill the tank threw the fuel line over spilling into a small external overflow tank, (waste no fuel) then hook it all back up again and fly, repeat over and over. So my question is soon I will have more sophisticated set up’s that will not allow or at least be very cumbersome to do it this way. I have seen some fuel line fillers that are Y's, and you just fill threw it. Being most tanks only has three inlets, one for carb, one for pressure and one for overflow. So what is the preferred way to set up a tank?</div><div></div><div>Thanks</div><div></div><div>TB</div>
The pipes for pressure and overflow are moulded in, so don't leak. There is a facility for sight-glass connection for quantity indication (although I've only ever used it once). The filler and pressure pipes enter the tank at the very top so if you stand your plane on its nose slightly inverted when de-fuelling, you get every last drop of fuel out of the tank. The clunk pipe is turned from brass and has a rounded tip to help prevent the clunk tube from getting fractures. It is a hex headed screw fitting, the same size as a glow plug, so can be fitted with the glowplug spanner. An O-ring seals it to pressure.
All-in-all, well thought through and high quality.
