Quote:
Originally Posted by Old Tele man
• rotational dynamics 101: when the center of a rotating mass moves outward the spinning velocity decreases; while, conversely, when the center of rotating mass moves inward, the spinning velocity increases.
• gyroscopic dynamics 101: a spinning mass will process and attempt to resist directional changes.
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the crankshaft and cylinderbank are counter-rotating.
In case of flying with it. Have a look at :
Siemens-Halske Sh.III - Wikipedia, the free encyclopedia
"
The advantages of the engine were increased propeller efficiency through the reduction gearing effect of having the engine effectively running at 1,800 rpm for only 900 rpm of the airscrew, and excellent high-altitude performance due to the high compression ratio achieved. A bonus was the counter-rotating masses tended to cancel out the gyroscopic forces of the engine. This was achieved by using bevel-gears housed in the rear of the crankcase."