Hello,

  I found the link to your E-Group through the
Yahoo group: Aircraft-auto-engine news group page.
  I presently have the plans for a Cozy MK IV.
 I will probably be starting construction within a
few weeks.
  I was considering the use of The Ford V-6 (Blanton)
conversion, however weight and cooling seem to be
an unsolvable problem for an aircraft such as the Cozy.
  I saw the Mazda fly in an RV-4 back in 92 at Oshkosh.
 It was very loud and I understand burns about 20 GPH.
 I need an engine that will produce in the neighborhood
of 180-200 hp while still getting fair economy.
  Do you feel that the mazda is a real alternative for
 my needs ?

                                             Thanks,
                                                    Phil

Welcome to the ACRE NL list.

First the engine burns only slightly more gas than a Lycoming.
Since it has no exhaust valves it can run up to 100 degrees
lean of peak.

Second the overwhelming advantage over most aircraft engines is
it will happily burn auto gas which at today's prices for aviation
fuel is a 50% savings. 

http://www.lycoming.textron.com/support/publications/do_not_use_automotive_gas_in_aircraft.html

Those using the Mazda wankel for cross country
plan their trips around the availability of auto fuel at airport stops.
There is an auto fuel at airports web site someplace.
http://www.airaffair.com/Fuel/
http://www.airnav.com/fuel/
Check http://www.google.com for more.

Several of our subscribers have over hundreds of hours on the rotary
and some have well over a 1000 hours. Check our web site below for links
to people flying rotary engines.

I am sure they will send messages attesting to their positive experience
for you to read.

There is no doubt that the Mazda wankel is loud. Most have devised
mufflers that quiet the engine sufficiently. Some run turbo chargers
which solve that problem and gives more power both at sea level
and high altitude in the bargain.

Paul Lamar
 
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