How to Flare Aluminum Tubing for your Experimental Aircraft

A demonstration of proper flaring techniques by an A&P mechanic for aluminum tubing used for fuel and brake lines in Experimental homebuilt aircraft. Popular tools for this procedure are shown.

[@GamingwithGamerGirls]

You can easily remove too much of the material from the end of the tube using a knife like this. This could affect the flare connection to the fitting and under higher pressures this will cause leaks.
Using the proper de-burring tool, while ensuring you only remove burrs, is the correct way to prepare the tube for flaring.

[@TheMILVET]

Notice, He said "37 Degrees". AN fittings are 37 Degrees (created for military aircraft), SAE (Society of Automotive Engineers) is 45 degrees.

[@ele4853]

TheMILVET there is SAE 37 degrees as well.

[@patrykwaz5891]

Thanx 4 sharrrrring...

[@richcrowder6647]

Do you have a manufacturer name and part number for the first flaring tool in the video?

[@tunafish3216]

Why not use the deburr tool on the cutter ?

[@toadman506]

If you use a small knife you can get the chip out in one piece and not worry about losing any inside the line

[@ravindrasingh-di7kv]

how much tube to be keep out of from flaring clamp....?

[@TylerDaleJr.McCarty]

He literally says it. "Maybe a 64th [of an inch]"