[GreenKeys] 7470 oil

[Richard Knoppow]

----- Original Message ----- 
From: <airrelic at juno.com>
To: <davetumey at yahoo.com>
Cc: <greenkeys at mailman.qth.net>; <rkolarik at neb.rr.com>
Sent: Saturday, April 19, 2014 12:22 PM
Subject: Re: [GreenKeys] 7470 oil


AeroShell Turbine Oil 500 is made to spec MIL L-23699. A 
local Airport FBO that services jets should carry this. 
Count on it being $$$Kevin

    I did some searching a while back for Aeroshell No.7 
grease and found a source with reasonable prices. Perhaps 
the same is possible for the oil. Anything sold for aircraft 
or the movie industry will cost about double its right 
price.

    Now, I ran across an issue of the Bell Labs Record today 
from the early 1930s with an article about oil that sticks 
but does not gum up. The needed it for all sorts of 
applications and the Labs experimented with additives.  This 
is very old (I will post a link later) but at the time they 
found that mineral oils spread out and vegetable or animal 
oils did not but oxidized to quickly.  I am sure there are 
better materials now since synthetic oils to take the place 
of sperm oil for fine machinery was developed long ago.


--
Richard Knoppow
Los Angeles
WB6KBL
dickburk at ix.netcom.com