Thanks you Gentlemen,
I will get the CAD drawing done from one these CAD freelancers on
the net and post back the results. . Just one question - which of
the three SAE 1,2,3 will go with the FORD transmission parts from
slausons ?
Regards Zahid Rahman
I saw this photo o various Ford planetary gears on the website, how
does each one effect the reduction ratios
The planet carriere with the square theet is 3.12 and the other is
2.85. Hold the ring gear in both cases. The flange # goes with any
gear box. The big flanges are for wood props.
Paul Lamar hold off on the email. I'll be back in a few days.
You said the planet carrier with teeth is 3.12 and the other is 2.85.
I was looking at this gear box
http://www.aeromomentum.com/gearbox.html
<http://www.aeromomentum.com/gearbox.html> he described the ratio of
his gearbox 2:5:1 Designed for 4 cylinder engine up to 210LB horse
power. In terms of horse power if that is the correct way to view
the ratios what horsepower should be used with 2.85 and 3.12
Zahid Rahman
Any HP number.
Here is a little quiz. If I have an engine that generates 200 HP at
6000 RPM what is the torque?
Paul Lamar
Paul,
What stands between the status quo and a certified engine, if it is
crystal clear that rotary is the way to go?
Gordon Gao
In order to stay in business a company must make a profit. Lycoming
stated that when the vast majority of customers demand a Wankel
engine Lycoming would build it. Lycoming would have to build a
factory to make Wankel engines because the FAA demands a paper trail
from the mine to the air. This FAA policy hampers innovation. Mazda
estimates over a billion dollars to build a new Wankel engine
factory so they keep the one they have.
Lycoming would then be out of the experimental market which is about
20 to 30% of the total market for light aircraft engines. Since a
used Mazda rotary engine is near free Lycoming probably could not
make money for years to come. Your tax dollars at work.
I think Mazda should get in the aircraft engine business to better
utilize their assets but it would be a drop in the bucket to 100,000
car engines per year. I would do it for PR reasons.
Paul Lamar
Greetings Gentlemen,
I am quiet concerned about the ending of Mazda rotary production
and would like to see the Mistrel type av engine fitted with a compound
turbo system as per Pauls' CAD drawings. Nothing short of brilliant!
We have just finished price negotiations on a Seawind 3000
incomplete amphibian kit which we expect to take delivery of next month.
We will be installing a 20b Mazda on it with a compound turbo system.
Yet to be engineered. Quality reference from anyone having the needed
knowledge in turbine sizing/design would be highly appreciated.
All the manifolding/mountings will be scratch made in house. We
have located blade producers to handle blade assemblies.
I grew up in a family run machine shop and have 25 years as a Plant
Engineering Technician.
Efforts are now moving forward on obtaining ample funding for an
additive machining center to produce honey combed interior shaft
assemblies and end covers to further reduce weight and bring production
costs down.
100 pounds of Monel reduced to 27 pounds of shaft leaves a lot of
time and material on the floor!
We also have a huge existing residential market use for an
affordable 45 hp rotary with a blow down turbo. Which we will not
disclose for engineering with out an NDA. $5,000 for an Axiro is more
than a bit much!
Cheers Ya-All,
Michael Nash
As to the torque question; 175 lb ft @ the 6000 RPM.
Michael Nash, A p-p20B will be about 500HP naturally aspirated. The
Detroit Diesel DD15 engine uses an axial flow turbine for power
recovery. Paul plans to test one shortly once his ignition system is
complete. The big issue with the DD15 part is the cast iron housing
which is heavy for aircraft use. If the housing was copied in
TitaniumAluminide the weight would be close to 3/8 of the iron part.
This should add about 125HP with no extra fuel burn. A p-port
turbocharged 13B should put out 500HP and then the same benefit with the
DD15 turbine assembly with close to the 20B weight before adding the
power recovery turbine. I think building a new front cover with a gear
case would make the power recovery install more compact off to the side.
Also provision for driving a cabin pressure pump could be incorporated.
Dale Davies
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