<Paul Lamar wrote:
<The fundamental mechanical thing about the two rotor Wankel is it fires twice per
<rev regardless of what the sensors imply.

Mark Steitle wrote:

One reason I chose the 20b over the 13b is because it produces a power pulse three
times per eccentric revolution, or every 120 degrees rather than 180 degrees as the
13b does. With a 2.17:1 reduction, you will get a power pulse at the prop. every 55
degrees rather than every 83 degrees with the 2 rotor. Basically, the difference
between a 4 cyl. vs. 6 cyl. Should be very smooth running. Now if I can just keep
it cool and quiet!
Mark
Lancair ES-20b

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