Ok.
   Let's shelve diesel wankel. Turbo compound rotary should achieve
the same specific fuel consumption. How do we go about making a big
turbine for the hot recover section?. Who could we hire to make this
item without charging an Aerospace prize? Could this turbine be the
flywheel itself? Thanks.

   leman wings



   http://www.barber-nichols.com/

   Paul Lamar ......In NZ




Pratt and Whitney's PT6 is 50 years old this year, there was an article
in the AOPA about it. I recently completed my A&P, and the DME had 3 old
PT6s there for the test and for parts. The point is that I dont think we
need to reinvent the wheel. There are many many small sized turbines
that parts like the power turbine can be removed from for testing. These
are designed for the high temps and high rotational speeds. I think
maybe a turbine can be attached to either the flywheel or the front end
and eliminate much of the weight and parts and pieces of the first
generation TC. Just like Paul did for TC 1.0 with the DD TC parts, an
already produced part would keep costs down.

As far as a diesel rotary, if the TC gets the BSFC down, the only real
benefit to a diesel rotary would be the ability to burn jet fuel in
parts of the world where avgas is not readily available.

As it relates to the low compression ratio, the older 2 stroke detroit
diesels had relatively low compression, and the answer was a roots type
blower.

Kevin Alderman


Hi Paul.
Have you priced what it would cost for barber-nichols to make your turbine?
 PT-6 turbine may be too small in diameter for the job. Plus the design
is for a lot higher flow mass then what a 13b could put out. Thanks.

Leman Wings


If you want to go 3 rotor you can get a DD15 turbine and gear box for $3000.
You would have to cut away some of the cast iron and replace it with SS
sheet
to reduce the 100 pound weight.

Paul Lamar


Wow. Have anyone test run this rig? As of this config, I don't think it will be a fire
wall forward feasible. Any result?

leman wings

Not yet. Soon.

Paul Lamar

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