Cabin fuel lines and TSFlightlines (long)

[sahrens]

they are in the box. I put the fuel valve in the aircraft during the design and test fit of the lines Tom made for me. Everything is out of the aircraft and the fuel valve is back in the box with the screws.

[rhill]

Originally Posted by sahrens

they are in the box. I put the fuel valve in the aircraft during the design and test fit of the lines Tom made for me. Everything is out of the aircraft and the fuel valve is back in the box with the screws.

OK,Sorry "Mea culpa", went through my box and found the same thing.
RHill

Oh Yea, Tom the lines look great,I want a set for my 7a!

[TS Flightlines]

Actually Scott and Darin let the cat out the bag. YES---I'm going to do these as as a option kit to my standard hoses with 90*'s at the valve.
Understand---these arent easy to make, BUT---a certain partner of mine in Wisconsin acquired a NC mandrel bender, and yes I plan on putting him to work!
I have the patterns for these, as well as some other things, like the Andair tube that looks like an inverted question mark for connecting the selector valve to the Andair filter.
Tom

[rhill]

That was another question I have where do you put the filter or gascollator on this system? Walt suggests 70 micron before the pump, I'm thinking of a system with two collators in the wing root. Do these line kits extend to the tanks?How about custom hoses for the firewall side? Firewall to pump,pump to carb?

[TS Flightlines]

Yes the lines exit to the tanks. I'm working on wing root filter/hose packages for those that want filters at the wings.
Yes I have hose packages for the FWF stuff----but alot of it will be to your dimensions---because everyone doesnt put the same accessories in the same locations!!

Tom

[splevy]

Just curious what the green sticker on the spar says. Didn't have one on my spar, but the kit is from 2003.

[sahrens]

Here are two photos that show the exit to the tanks. The line uses the same exit as the plans call for when fabricating the aluminum lines.

[IMG][/IMG]

[IMG][/IMG]

The line I have running to the fuel pump could be changed for the filter prior to the pump, or installed after the pump. There is a fourth line I have to have Tom make that runs from the fuel pump to the firewall penetration point. I am not that far along but the filter could be there; although it would be after the fuel pump. Talk to Tom; if you can describe it he can make it.

[Zuldarin]

Originally Posted by splevy

Just curious what the green sticker on the spar says. Didn't have one on my spar, but the kit is from 2003.

It just says that the spar was precision machined at the factory and the wing mounting holes should not be drilled or reamed.

[erich weaver]

I'm missing something here. What is the advantage of having the lines in the photos transition from solid tubing to the braided hose? Why not just stick with the flexible hose and an end fitting? Also I don't understand what's going on at the transition point from one to the other, near the brackets. There dont appear to be any fittings there.

When I did my -7A years ago I quickly grew frustrated trying to bend the tubing correctly and switched to the flex hose with fittings for everything, from end to end. Cost some $, but easy enough to fabricate each piece.

Thanks
Erich

[Zuldarin]

Originally Posted by erich weaver

What is the advantage of having the lines in the photos transition from solid tubing to the braided hose?

I did it for two reasons. The first is my bending skills need help. Because of the gear mounts in my A model I found I had to bend the tubing in place with a spring bender which lead to poor bends and even gouges in the tubing. This looks way more professional and safe because the bends are perfect and the flexible hose allowed me to route it through the brackets, gear mounts, and then through the fuselage wall to the wing after the bends were in place.

The second reason was for stress relief. Flexible hose alone puts some stress on the valve fitting points initially as you flex the hose around to fit. I suppose that stress eventually lessens (not an engineer) but the first time I tried to put the flexible hose Tom made me (yes he made me two sets!) The amount of force I needed to get the hose around was significant.