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1930 Plymouth A-A-2004, it was an R and D prototype using drums for wings. Rolling drums cause a "Magnus Effect" for lift

Wednesday, May 10th, 2017 by admin

The earliest attempt to use the Magnus effect for a heavier-than-air aircraft was in 1910 by a US member of Congress, Butler Ames of Massachusetts.

This seaplane was built for Zaparka in 1930 and was reported to have made successful flights over Long Island Sound.

A Flettner rotor is a smooth cylinder with disc end plates which is spun along its long axis and, as air passes at right angles across it, the Magnus effect causes an aerodynamic force to be generated in the third dimension

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