On Aug 2, 1:55 am, wrote:
On Aug 1, 8:06 am, Stealth Pilot
wrote:


...

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.


Any welded aluminum is unlikely to be 2024.

I have heard that DC-3s used 6061.

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FF