i dont think anyone knows exactly what ludalloy was. it does appear to be mostly aluminum though. the acrolite and the supra have the same shell. just,in most conditions, the acrolite was 8 lug and anodized or painted(or powder coated), and the supras were 10 lug and chromed.

mike

+1 with the Mike's statement above.

Mike knows as much as I do about them. I can't add anything to his response. Ludalloy is a proprietary alloy. That means it's like the recipe for Coke or Dr, Pepper. The formula for Ludalloy (which doesn't work as we all know,) is probably kept in a safe somewhere. I'll do a little snooping on the web and see if I can dig up some info.

Here's a VDF link I found:

http://www.vintagedrumforum.com/showthread.php?t=15361

And here is a link to an old thread from another drum forum...

http://www.drummerworld.com/forums/showthread.php?t=62027

Basically covers off the same info you've gotten here. I'll keep looking...

John

LOL - I had -already responded- to your question in another thread! Here's a copy/paste of my response that you must have missed...

"The supra's and the acros have always been made from the same raw shells - one got chromed and drilled for 10 lugs (for the supra's,) and the other (the acro's) was drilled for 8 lugs and just overcoated. But it's the same shell on both drums. I call it aluminum because that's what it is. Ludwig had a proprietary recipe for their aluminum but it was basically aluminum with some other additives that were supposed to prevent pitting of the chrome overcoat. As we all know, "Ludalloy" doesn't work! Any raw aluminum shell can be polished to a very high gloss/reflective shine. The supra's need to be stripped of the chrome first.

Hey congrats on completing the bass drum! PM me a photo so I can check it out."

So many threads to keep up with it's hard not to miss stuff. I do it all the time. Anyways, as you can see, it's no different from what Mike told you. There is only but 'so much' info available on the web about it.

John

Thanks guys. I always thought that Supras were one mix of metal and Acros were another formulae. So the difference is chrome and number of lugs.

P. Shuf, I did not see an option to attach a pic to a PM.

SA

Guys............Ludalloy is a MARKETING TERM fabricated by Ludwig for Ludwig. The Supra, Supersensitive, and Acrolite shells are all made out of the same hard aluminum alloy, the only difference is the number of holes drilled into the shell and that the Supra and Supersensitives are chrome plated. Thats it!

Its a one piece spun aluminum alloy shell. Nothing special about "Ludalloy" other than its sonic properties :D

Exactly! Let's not make more out of this than the above quote... which is right on the money!

Mmmm....not so much since Ringo played a wood shelled Jazz Festival.....

Funny Post