Paul,

Is anyone doing research into other fuel types with the Mazda Wankel?

Ethanol/Methanol/Alcohol?

What about Hydrogen and/or Dissociated Dihydrogen Monoxide (DHMO) …..?

Over the past few years I have been working on a concept that would potentially be able to produce copious amounts of DDHMO, and should be comparable in $/joule to high octane gasoline, possibly cheaper. The benefits would of course be the fact that it would be renewable, carbon neutral and non-polluting.

Because of the acidic nature would need to be handled properly in the plumbing system, fuel rail, fuel tanks, etc.

 James C. Reyna

Aquatic Design Specialist


They will all work.
What is wrong with gasoline?

Paul Lamar


I would be curious about jet a jet p and diesel also? Have these fuels been looked at? Also, thank you for your website and newsletter Mr lamar. I foind your website a while back while trying to research rotarys for an aircraft engine amd recently joined your newsletter and love it.

James C. Reyna

Yes of course.

You should work on something that has a chance of success.

Paul Lamar


Pat Power produced a rotary multifuel APU engine that was used in M1A1 Abrams tanks as well as some civilian applications. Being military they are required to burn multiple fuels due to possible combat conditions fuels availability. They used a precombustion chamber to inject the fuel into to initiate the combustion. There was also a ceramic glow plug to also initiate the burn.

Then the very rich flame front came out the hole into the main combustion chamber (rotor housing) and continued to burn with the plain air. With these installed they could shut down the turbine engines used for main propulsion as they are fuel hogs. Also the volume of hot exhaust could be targeted by enemy forces.

They could then sit quietly monitoring the field of combat still powering their warfare electronics and charging batteries and running air-conditioning.  Then at a moments notice the turbines can be spooled up.
Dale Davies


Congratulations on your new email program. It is working better.

Paul Lamar

H2  burns clean but a couple of other problems come to mind. Heavy high pressure bottles to store the fuel. It is EXTREMELY combustible. It is the smallest molecule and will leak out through hoses and even tubing.
To assist combustion with diesel fuel natural gas works well. Almost like a catalyst. You still need a high pressure tank but it is readily available and will stay in the tank. The storage bottle weight is an issue for aircraft and damage in a crash has to be considered with either gas. Better to design for conventional fuels and use power recovery to improve economy.
Dale Davies.


Why isn't the government talking about the 43% of the waisted fuel going out the
exhaust ??????

It would be poor political tool. Everybody would agree and no political
power would be gained. The "environment" is emotional. Engine efficiency
is not emotional.

Ansdale wrote the book in 1969 for god sakes!!!!!!

Here is part of chapter 10.

Paul Lamar



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