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<... Mil-H-5606 is a mineral based hydraulic oil ...>
I seem to recall that (back in the day ...) the tactical jets I flew used that brake fluid. We landed at >125 kts, tire pressures ~250 psi and as long as you didn't break a line you were OK. Did NOT use Al lines between strut and caliper :o) Could that be the problem?
As best I recall that far back ... Jim S.
WALTER B KERR wrote:
On Sat, 18 Jun 2005 17:11:55 -0400 "Ian Dewhirst" <ianddsl@magma.ca>
writes:
Thanks Ed,
I have been following the discussion and your post prompted me to see what
aircraft brake fluid was all about. For those who haven't bothered to
google this, Mil-H-5606 is a mineral based hydraulic oil (unlike brake fluid
which is glycol or silicone based) with a flashpoint of 284 degrees
Fahrenheit. Hmmm, no wonder people have brake fires. The up side is it is
pretty much the same price as DOT-X.
Anybody have an idea why hydraulic oil is chosen? I know hydraulic oil is
used in heavy equipment to apply the brakes, I think the simple reason in
that application is that there is a lot of it pressurized and available. I
trust that is not the reason it is used in a C172? -- Ian
P.S. Good Luck Ed!
Do NOT use automotive brake fluid in aircraft brake systems. Incompatible
with the seal materials. See information at
http://www.groveaircraft.com/brake_info.html
Ed A
=======================================================
A friend of mine says ATF is the same as aircraft brake fluid. Ran it
over 400 hours without any problem in my RV6A. He is an EAA tech adviser
and another engineer from Pratt-Whitney. Never tried to check it out,
just went on blind faith. I have aircraft brake fluid in the 9A, just
because it was handy.
Bernie
Homepage: http://www.flyrotary.com/
Archive: http://lancaironline.net/lists/flyrotary/List.html
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