12 a

    Here is a preliminary copy of the proposed addition to
    the web site on the TTC.

    Please read and make suggestion for corrections and improvements.

    Paul Lamar



Hi Paul;
  Here are one thing I noticed:

 1. Second page - second paragraph.

    The last two sentences are out of place as that paragraph is talking about a piston engine.  Same problem with the fourth paragraph.  Here is how I would change paragraphs 2 through 4.

    Any piston engine operating at aircraft power levels has a limited life. Cracked crankshafts are a very common problem with aircraft piston engines.  This is the main reason they need to be magnafluxed for cracks at least every 2000 hours; at TBO.  The cracks are caused by reversing stress on the crankshaft, connecting rods, pistons and valve parts. Bend metal back and fourth long enough and it will crack or fail.

    By comparison, the rotary engines are extremely robust and durable. The rotary uses an eccentric shaft and two or more rotors. They have NO reversing stress in the 3 moving parts, (assuming two rotors), because all the parts are moving in one direction only. This is why nobody has ever cracked or broken an eccentric shaft regardless of the amount of power they were able to extract.  It is similar to an electric motor and there are many 100 year old electric motors still working.

Gord Raboud

I have revised it a couple of times since then.

Here is the latest version.

In the next version after this I will incorporate your ideas if still necessary.

It is a work in ongoing process :-)

Paul Lamar


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