On Aug 1, 8:06 am, Stealth Pilot
wrote:
On Tue, 31 Jul 2007 22:42:40 -0700, John Kimmel





wrote:
wrote:
On Jul 31, 4:03 am, Dave wrote:

wrote:

I have run across someone who insists that
6061 T6 is not "aircraft grade aluminum".

He claims that there are no certified parts made
from 6061. I find that hard to believe. Aren't there
certified aircraft with welded aluminum frames?

...

That is a pretty broad statement.

Parts are made from any materials that the manufacturer
desires/specifies. Wood, aluminum, brass, glass and anything in between.
That includes 6061 of all tempers.

That is kinda what I thought. I'd like to find some specific examples
of certified aircraft parts made from 6061. I took a gander at
Aircraft
Spruce's online catalog, but the search function isn't set up for
that.

I'm thinking that certified metal props will probably be 6061 too.

--

FF

Main rotor blade and tail rotor blade spars and skins for Sikorsky S-61
and CH-53 are 6061-T6

the Fokker friendship was built from 6o61 as are the chris heintz
designs.
metal props are usually 2025.
Stealth Pilot- Hide quoted text -

- Show quoted text -

The Cessnas I work on every day have a lot of extruded angle
in them, and I bet much of it is 6061T6. Perhaps the spar caps are
2024T3 extrusions.

Dan