DC-3/C-47 Limit Load Factor

[Dale]

Anyone know what they are? Any idea where to look to find the info?

I've looked at the TDC and didn't see it listed.

TIA

[Scott Skylane]

Dale wrote:

> Anyone know what they are? Any idea where to look to find the info?
>
> I've looked at the TDC and didn't see it listed.
>
> TIA

Dale,

Talked to a guy who has an old Army Flight Manual, and one of Warren
Woods', too. He described a graph in the Army book that showed a limit
of 3.0 G's at 26000 lbs, sloping to 2.5 G's at 30600 lbs, and then
extending into the "caution" zone up to about 36000 lbs.

The Woods manual listed several configurations, from flaps 0 to flaps
45, and various angles of attack. Basically, these values ranged from
+/- 2.83 G's, down to +0.44 G's, all at 26900 lbs.

These values seem consistant with CAR 4b, which it was probably
certified under. 4b states a minimum of 2.5 Gs.

I suspect these figures are in reality *very* conservative, as no one
I've ever talked to has heard of a -3 falling out of the sky due to load
induced structural failure.

Happy Flying!
Scott Skylane

[Dale]

In article >,
Scott Skylane > wrote:


> Talked to a guy who has an old Army Flight Manual, and one of Warren
> Woods', too. He described a graph in the Army book that showed a limit
> of 3.0 G's at 26000 lbs, sloping to 2.5 G's at 30600 lbs, and then
> extending into the "caution" zone up to about 36000 lbs.
>
> The Woods manual listed several configurations, from flaps 0 to flaps
> 45, and various angles of attack. Basically, these values ranged from
> +/- 2.83 G's, down to +0.44 G's, all at 26900 lbs.
>
> These values seem consistant with CAR 4b, which it was probably
> certified under. 4b states a minimum of 2.5 Gs.
>
> I suspect these figures are in reality *very* conservative, as no one
> I've ever talked to has heard of a -3 falling out of the sky due to load
> induced structural failure.


Thanks Scott!

Yeah, sounds conservative to me..especially after seeing the way they're
built. That gives me a start though.

Thanks again.

[David Lesher]

> I suspect these figures are in reality *very* conservative, as no one
> I've ever talked to has heard of a -3 falling out of the sky due to load
> induced structural failure.


During the Berlin Airlift, a C-47 took off with a full load of
X sheets of Perforated Aluminum Planking, for extending the destination
runway.

Turned out it was X sheets, but Perforated STEEL Planking....
and it still flew..
--
A host is a host from coast to
& no one will talk to a host that's close........[v].(301) 56-LINUX
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433

[Michael]

David Lesher wrote:
> During the Berlin Airlift, a C-47 took off with a full load of
> X sheets of Perforated Aluminum Planking, for extending the destination
> runway.
>
> Turned out it was X sheets, but Perforated STEEL Planking....
> and it still flew..

I don't think you can get a C-47 overgross. I do know you can get it
out of cg. I've seen one spin. It's a fascinating sight.

Michael

[Gord Beaman]

"Michael" > wrote:

>David Lesher wrote:
>> During the Berlin Airlift, a C-47 took off with a full load of
>> X sheets of Perforated Aluminum Planking, for extending the destination
>> runway.
>>
>> Turned out it was X sheets, but Perforated STEEL Planking....
>> and it still flew..
>
>I don't think you can get a C-47 overgross. I do know you can get it
>out of cg. I've seen one spin. It's a fascinating sight.
>
>Michael

From the 'outside' maybe...I'd use another word to describe the
view from the 'inside...' :(
--

-Gord.
(use gordon in email)

[Stache]

Dale,

I have placed all the CAR's on my web site: http://www.stacheair.com/
CAR-4 has the limitations and is pretty close to Part 25. The type
certificate data sheet calls Army Technical Orders 01-40NC-82 and
01-40NC-86, which should have the limit load requirement.

You can contact Technology Transition Office Wright Patterson AFB
(800)203-6451 who can track down the correct manual to give the load
limits. I have use this office on several projects I have worked on.

Stache