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Old 07-03-2013, 03:06 PM   #15
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1971 21' Globetrotter
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Berry, Your Airstream could very well be 24ST. 24ST was the alloy number back in the "Old Days" The new alloy designations that we currently use today was changed in the mid 50's to 2024-T3. I have attached a couple of minimum bend radius charts and one hardness and temper chart for your use. As a side note you could use .040 2024-T3 for your front panels if you wish as it works very closely to the .032. I have bent 2024-T3 all the way up to .125, you just have to use the correct radius bar on your brake. If you look at my thread below you will see that I fabricated all of my stringers and replacement "C" channel from .063 2024-T3, and I used a .250 radius for this.

.040 is readily available from many of the aluminum suppliers and can be rolled for ease of shipment.
Attached Files
File Type: pdf Bend Radius Navair082.pdf (52.1 KB, 45 views)
File Type: pdf Min Bend Radius AC4313.pdf (10.9 KB, 23 views)
File Type: pdf Hardness Chart.pdf (12.4 KB, 37 views)
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Old 07-03-2013, 08:16 PM   #16
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Kip as always you are right on... I grabbed a flaslhlight as it's dark now and went to look... The markings on the front /back and roof all say :
.032 Kaiser CL 24 ST 3 QQA362. What is starnge is both sides panels have no markings at all, though they appear original. Thanks for the charts, though I haven't the foggest what they mean ;>) Thinking .040 for the sides .032 for ends panels and door work. Now to find a good place to buy it.
Happy 4th ..
Barry
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Old 07-03-2013, 08:26 PM   #17
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Airparts is a good source. They'll roll it and ship in a box.

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Old 07-03-2013, 09:04 PM   #18
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Quote:
Originally Posted by Aerowood View Post
Berry, Your Airstream could very well be 24ST. 24ST was the alloy number back in the "Old Days" The new alloy designations that we currently use today was changed in the mid 50's to 2024-T3...
Exactly. I have a panel from 1955 that actually has BOTH designations on it. 1 row of print says 24ST, the next row says 2024T3...repeated over and over again.
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