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One reason you do not, Paul, is that when I
priced a set for a 2 rotor back about 10 years ago, they ran $1200 (that's right
- just for the seals). While there is little doubt that for the racing
crowed to stay competitive such expense may well be required and
justified. For us guys running below 9000 rpm - they are simply not
needed. I would stick in a set of the new type seals from Real World
Solutions and go flying - in fact, that is what I did do {:>)
The ceramic seals may be a bit cheaper now, but
are probably still quite expensive and they need in out application is simply
not there.
My 0.02 worth
Ed
Ed
----- Original Message -----
Sent: Saturday, June 07, 2008 5:22
PM
Subject: [FlyRotary] Re: Steam
engines
Newbie
Question---for the “normal”13B NA engine, how do the ceramic apex seals
compare with the other types of seals you all are using? (I’ve rarely
ever read anything about their use in this forum.)
Paul
Vermillion
From: Rotary motors in
aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Lynn
Hanover
Sent: Friday, June 06, 2008 2:18 PM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Steam
engines
Steam engines use with contained (reused steam) use water
based lubricants. No problem.
Good point. I imagine you could use the ceramic apex
seals, but their
cost would make the whole thing more expensive than I
would probably
want to go. Do you think having the seals coated with
a ceramic might
work/stay on?
Grant
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