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Message
In spite of Dave's experience, I really find that higher boiling point real
attractive. I try to encourage guys flying unknown cooling systems to take
advantage of the safety margin you get from boiling point. Even though I
don't use Evans myself. I consider boil over the number one coolant
risk item.
Do you guys have anyone flying with evans?
My old RV-3
was flying quite successfully with Evan's "NPG-R". I presume it still
is. The system was set up for zero pressure, which eliminates other
problems as well. Lots of RX-7 guys run NPG in their stock
engines also. So far, I haven't heard of anyone having a problem running
it.
This whole
discussion reminds me a lot of the story of scientists who proved on
paper that a bumblebee can't fly :-) NPG isn't for everyone, but it
has lots of advantages if your system can take advantage of them. The
primary disadvantage has been mentioned, and that's availability away from
home.
Near
comatose, must sleep....
Rusty (hoping
the MRI scanner from hell is still working in the
morning)
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