contrarotation


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contrarotation

[¦kän·trə·rō′tā·shən]
(engineering)
Rotation in the direction opposite to another rotation.
References in periodicals archive ?
Because the tailsitter was driven by twin contrarotation propellers, as shown in Figure 1, each propeller needs to provide a half of the required thrust.
Preliminary design of a small unmanned battery powered tailsitter
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