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Well, a bunch of misinformation at the least.
You don't have to mix 2 cycle in your gas, you can use a
separate tank or (heaven forbid) even inject crank case oil as they do with the
engine in the automobile. Mixing it is just simpler for most of us.
And its not required by the unusual combustion chamber shape , but is need to
cool/lubricate the apex seal. One person flew from Chicago to Florida
without 2 cycle mixed in his gas and apparently did not do any engine damage
although one might assume the apex seals did not care for it.
You don't get a power drop from using aviation fuel after take
off or any other time - and of course you do NOT need to use aviation
fuel.
Now if you use 100% aviation fuel, my experience is that
you will get sparkplug fouling at approx 20-30 hours of use and I then replace
the plugs - but you could probably clean them off and reuse them a time or two -
keeping meaning to try that. Considering auto sparkplugs cost approx 1/5
of an aircraft spark plug - not a big concern. But if you stick to Mogas
then you'll likely get over 150-200 hours on a set of plugs.
Clearly a person who has "heard" things about the rotary, but
does not know anything about them.
Ed (back from Flyin)
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----- Original Message -----
Sent: Sunday, May 21, 2006 7:48 AM
Subject: [FlyRotary] Questions from a
potential rotaryphile
In a different forum, not related specifically to engines, the following
was stated,
"...Rotary is different issue. Their unusual combustion chamber requires
them
to mix 2 cycle oil with each tank. If they don't their compression
seals
die prematurely. Just like your boat motor mix, I don't see it as a
big
deal. In addition, if they use aviation fuel, they develop power drop
on
departure and have to replace all their plugs before next flight.
This
happens every 20 hours. They don't have solution for
this."
What is the experience that you are having? Is there any truth
to this. If not true, where might this info have come from??
thanks,
Rich
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