Comments by "" (@VersusARCH) on "The Drydock - Episode 076" video.
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25:34 You seem to be describing the ROTARY engine, a short-lived design used in WW1 visually similar to the RADIAL engine while motionless. In the rotary engine the propeller was fixed to the circularly arranged cylinders and both turned together, while the crankshaft was static. The mass of rotating engine amplified the torque effect. Such a bizzare solution was adopted because the airplane speeds were insufficient to provide enough airflow to cool the engine with fixed circularly arranged cylinders that rotate the crankshaft to which the propeller is fixed - which is a basic description of a radial engine. Rotary engines had a lot problems, so once the engines became powerful enough to propel the planes at sufficient speeds to generate enough airflow to cool them properly, they were abandoned. Sopwith Camel for instance had a rotary engine. WW2 designs such as Swordfish, Zero, Wildcat, Thunderbolt, early FW-190 all had radial engines.
Every propeller- driven aircraft (be it rotary, radial or inline engined) with an odd number of engines suffered a torque effect.
Japanese carriers Akagi and Hiryu had islands on the port (left) side however. They were expected to operate in divisions made of 2 carriers with islands on different sides (Akagi's pair was the Kaga and Hiryu's the Soryu, both of which had islands on the starboard or right side) sailing side by side, island to island, so that planes could bank to different sides and reduce the risk of collision. By the time they were designing the Shokakus they realized that the former requirement was unnecessary and prioritized making things easier for the pilots going around torque effect-wise like everyone else.
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