Heavy fuel means it burns diesel but it is not a true diesel.
  Power is down from burning gasoline so it makes no sense with the
  intrinsic increased cost of diesel fuel.
   http://www.austroengine.at/cms/front_content.php?idart=37
   BTW Do you have a tail dragger training FPO up there Rob?

  Hi Paul,

  Not near here (I'm in Porterville South Africa - it's near Cape
  Town).

  There are two centres which teach on tail draggers about an hour's
  drive away.

  I became very interested in rotary engines some years back, when I
  considered buying the Sinus from Pipistrel in Slovenia.
  Unfortunately, the factory will only fit ROTAX engines; and won't
  even consider any other option as a factory fit. I hoped at the
  time  that the power plant from Wankel itself might persuade them to
  look  at the idea, but I don't need to tell you what response I got...

  ...not helped at all by Wankel's neglecting (then and now) to
  answer  any of my queries.

  Anyway, back to the drawing board. I don't really want to do a
  self-build-from-scratch, but it appears that I might have no option.

  "Heavy Fuel" apparently refers to Jet A1, which (probably) requires
  a spark - not, as I supposed, to diesel. I wonder whether diesel
  would ignite "normally"..?

  Thanks for the chat-list - I found it during my search for rotary
 answers.

  Very helpful, informative and entertaining.

  Rob

  What a coincidence. We have a Porterville here in SoCal.

  Send email to Poul Henrik Woelfle AIXRO
 <ph.woelfle@woelfle-engineering.com

  They are rumored to be working on a two rotor.
  Austro engines is also working a 75 HP one rotor for motor gliders.
  None diesel burning as it is difficult to get the required
  compression ratio with the current Wankel geometry.

  Paul Lamar

  There is mechanical compression ratio and effective compression
  ratio. With a supercharged engine, the equivalent compression ratio
  is sort of calculated. With boost you end up with the same pressure
  just before ignition as a normally aspirated engine of some higher
  compression ratio.  Chev took advantage of the high octane rating of
  natural gas on some 4.3 V6 engines that were turbocharged.  Similar
  would be running on Jet fuel. It would be a beggar to start cold.  I
  think Pat Power uses a ceramic glow plug to help ignite heavy fuel
  for military applications. The glow plug and the injector are in a
  pre-cup, and the flame comes roaring into the main combustion
  chamber. If you reduced the depression in the rotor to get
  compression up, I think you could almost screw a pre-cup in the
  spark plug hole. The problem then would be to cool the pre-cup. With
  a turbo packing the boost to it.  Paul, you said power is down
  running on heavy fuels. What about fuel burn?

  Dale Davies

  No advantage so far. Is Pat Power still in biz?

  Paul Lamar



  Beats me. Looked like a great idea. Would be a good APU. More fuel
 efficient
 than the turbines.

 Dale Davies


     Isn't that what some used in the BD-5?

   rog

That was a Mazda single rotor from a company in SD called Alturdyne or Alturair.
Alturair
1405 N. Johnson Ave.
El Cajon, CA 92020

Telephone: 619-449-1570
Fax: 619-442-0481

Email: alturair@alturdyne.com
Website: http://www.alturair.com

========================================================================
Alturair continues developing a single-rotor, liquid-cooled engine of
approximately 100 horsepower, weighing less than 100 lbs.  it uses aluminum
to replace cast iron in the side housings.

This light-weight, rotary engine's simple construction with few moving parts
and all rotary internal motion yields virtually vibration-free operation.  A
remote radiator and oil sump are needed to complete the installation along
with mounts and a battery.  Ratings for this engine are shown below:


Design:  Rotary Combustion (Wankel Type)    Rotor Cooling:  Oil
Fuel System: Carburated or Injected             Air Filter:  Paper Element
Bearings:  Sleeve Type                                 Rotation:  Counterclockwise
Weight:  102 lbs                                         Housing Cooling:  Liquid
Rated Speed:  6000 RPM                             Ignition System:  Spark
Fuel:  Gasoline                                           Oil Usage:  0.08 g/hp-hr
Displacement:  0.65 L/Rotor (40 in.)           Output:  Direct or Geared
Compression Ratio:  9.7:1                          Starting System:  12 or 14V Electric
Lubrication:  1.  Remote sump required
              2.  Dry sump optional

--------------------------------------------------------------------
Paul Lamar