Subject: Rotary Aviation
From: ACRE
Date: 4/1/2005, 12:25 AM


Hayes Rotary wrote:

Dear Paul,

Happy Easter to you and family.

General Update.

We went up and started the rotary engine for the helicopter project.  It is doing extremely well.
A very first class project.  We are very excited.

On an additional note,

A few years back we re-chromed over $3,000 worth of rotor housings with great success.  We learned and picked up alot of insights and education to put us at the top of re-chroming rotor housings with hard
chrome with better than new OEM standards.  We are now testing the rotor housings for proof of concept in two automobiles, one carbureted 12A and one fuel injected 13B.  But now please to a
question, we have been contacted a few months back from an experimental aviation company who wants to put the engine in the fuselage.  Our question to you is, we need to develop a drive line to run
the front prop, what do you think?  Is it going to take special materials, couplers, and/or U-joints?
Please contact us at sales@hayesrotary.com and/ or 1-800-888-1100 when you get a free moment.

Thank you

Don and Dennis Hayes
Hayes Rotary Engineering

No problem on the gear box guys. Check the links on the web site below
to Tracy Crook (Real World Systems) for a gear box and aviation computer
EFI/IGN system.

BTW that is a cool experimental helicopter project is it not? Smiling.
If Francois gets on the stick and gets the engine certified he can
sell a million engines to Robinson.

Paul Lamar

I think I now realize what they are trying to do with the engine
in the fuselage and the prop in the nose. I would have to see a drawing
but if it is what I think it is they may have a problem with torsional resonance of
the drive shaft. The prop acts like a huge flywheel and may cause severe torsional
resonant problems. This brought more than one aircraft company to its knees.

Paul Lamar
 
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