Brake line tubing?

[DBeaulieu]

Included in my quickbuild kit are two diameters of aluminum tubing. I have the 3/8 OD for fuel line runs and also 2 sections of 3/16 OD tubing. I'm thinking the 3/16 is for brake line runs? Would appreciate any confirmation from other builders. Thanks!

Dave (from Maine)

[arborite]

All my brake lines on the LSA are 3/16” with AN3 fittings. This is a common size for brake lines on a lot of planes.

[DBeaulieu]

Thanks arborite! Is there any 1/4 or 5/16 used anywhere...Anyone?

[arborite]

For the LSA, 5/16” fuel lines were part of Marks list, so I bought all 5/16” fuel lines and the AN5 fittings. A lot of people use 3/8” and AN6 fittings for fuel lines, though. both are fine according to Bob. The kit gascolator needs a special adaptor if you run 5/16” lines, but other than that, it all works.