ORIGINAL: B.L.E.
ORIGINAL: skiman762
ORIGINAL: 8178
Nine cylinders are pretty wimpy compared to the mother of all radials, the Wright R-3350 with eighteen cylinders plus power recovery turbines.
We must not forget the Mac Daddy of them all the P&W R-4360 28cyl Wasp Major pumping out 4300 horsepower a tad more the Wrights 2800hp
and I believe the Russians had a radial diesel boat engine that was 42 cyl and put out 6000hp not a plane engine but a radial none the less
The Lone Star Museum of Flight located at the Galveston TX airport (Scholes Field) has a P&W R-4360 on display in cut away form so you can see all the moving parts. Let's see, 28 cylinders = 56 valves that need adjusting, and 56 spark plugs (dual ignition I assume) to change, HOO BOY!!!
This engine had the misfortune of being invented just in time to be made obsolete by jet propulsion.
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Four rows of seven cylinders? Wow!
Ed Cregger