Alloys for certified parts?

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?

--

FF

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?

--

FF

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.

Dave

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

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?

FF

The LSA certified Zeniths are 6061-T6.

On Jul 31, 2:30 pm, "Gig 601XL Builder" wrDOTgiaconaATsuddenlink.net
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?

FF

The LSA certified Zeniths are 6061-T6.

Aha!.

I see that Aircraft Manufacturing & Development Co. (AMD)
sells FAA certified SLSA Zodiacs.

--

FF

wrote:
On Jul 31, 2:30 pm, "Gig 601XL Builder" wrDOTgiaconaATsuddenlink.net
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?

FF

The LSA certified Zeniths are 6061-T6.

Aha!.

I see that Aircraft Manufacturing & Development Co. (AMD)
sells FAA certified SLSA Zodiacs.

FF

Glad I could help. I have plenty of scrap 6061-T6 that you can have to tell
him to stick it up his A$$.

I worked for one of the major A/C manufactures and they used 6061 for
several welded assemblies including the nosewheel fork , they formed the
parts cold and we pre-heated and welded the assemblies and they were sent
out for heat treat to bring the parts back to the T6 condition or about 35 K
Tensel , I can't ever remember seeing a piece of alum. or steel that said
aircraft on it , a Mil. spec no. might be stenciled on sheet , most
structural alum. used in A/C construction is 2024-T3 . Phil L.
wrote in message
ps.com...
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?

--

FF

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

--
John Kimmel


I think it will be quiet around here now. So long.

wrote in message
ps.com...
On Jul 31, 2:30 pm, "Gig 601XL Builder" wrDOTgiaconaATsuddenlink.net
wrote:
I see that Aircraft Manufacturing & Development Co. (AMD)
sells FAA certified SLSA Zodiacs.

While I believe you are on the winning side in your argument about aircraft
materials, the Zodiac may not be the best example to prove your point. As an
LSA, tt is certified to an industry standard, not an FAA standard. I recently
checked out in one and it even has a "warning" in the cockpit to that effect.

Vaughn

"Vaughn Simon" wrote

While I believe you are on the winning side in your argument about
aircraft materials, the Zodiac may not be the best example to prove your
point. As an LSA, tt is certified to an industry standard, not an FAA
standard. I recently checked out in one and it even has a "warning" in
the cockpit to that effect.

Yes, BUT don't let that warning read with too much meaning, either.

The warning is there, just as the warning in experimentals. It reads that
this aircraft does not meet the qualifications of FAA certified aircraft, or
something like that. I'm sure most of you remember exactly what that says.

It should be noticed that while it has not been compared directly to the FAA
standards, there are many, many homebuilts that far exceed the FAA
standards. Some of the quality in homebuilts make certified aircraft look
like erector set airplanes, in comparison. g
--
Jim in NC