Mailing List flyrotary@lancaironline.net Message #42753
From: Ernest Christley <echristley@nc.rr.com>
Subject: Re: [FlyRotary] Re: flywheel nut
Date: Thu, 08 May 2008 17:43:37 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
George Lendich wrote:
Gee Ernest - it's not as if there expensive!
George (down under)


BTW, still haven't determined if the engine-to-bellhousing bolts are 1.25 or 1.00 pitch yet.  I don't have a metric thread gauge.  Another good excuse to by more tools!!

Sssh!  They're not expensive if you just buy the thread gauge.  They're a mean bear if you buy the 140 piece tap-n-die set that it comes with 8*)

BTW, Tom just brought my finished adapter plate by.  He pointed out that he had been keeping the paper that showed the alloy of the aluminum I had bought for it.  I took a close look at it for the first time and....WHAT?!  6013!  What is that?!  I ordered 6061 from McMasterCarr!

Well, it appears that someone at McMasterCarr is smarter than I am...or at least the fellows at Alcoa think they are:

http://www.alcoa.com/mill_products/catalog/pdf/alloy6013techsheet.pdf

I had never heard of 6013, so I thought some of you might be interested.
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