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Old April 19th 07, 09:16 PM posted to rec.aviation.homebuilt
Morgans[_2_]
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Default Were radials usually long-stroke engines?


"wright1902glider" wrote

Its interesting to see how only the master rod is
connected to the crankshaft, and all of the other rods connect to the
master rod. Very interesting lower end geometry, and I'm sure the
resulting harmonics are even more entertaining when plotted. Its a lot
like music when you think about it!


Yep, the first time I saw how the rods of a radial were configured, I was
floored!

Part of the reason for to long rods and long stroke, are _because_ of how
the rods connect to the master rod.

If the rods were too short, the angles at the quarter strokes would be too
great for good efficiency.
--
Jim in NC