counter-rotating propeller

engineering

Also known as: contrarotating propeller

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June 24, 2026

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Counter-rotating propellers are an engineering innovation where two propellers are mounted on concentric shafts and rotate in opposite directions. This setup, also known as contrarotating or dual-rotation propellers, is driven by a common power source.12

The primary advantage of counter-rotating propellers is increased propulsive efficiency and higher disk loading compared to conventional single propellers. By rotating in opposite directions, they effectively reduce torque reaction, which is the rotational force that can cause instability. This design allows for smaller propeller diameters while maintaining or improving performance, making them suitable for various aircraft, including those with turboprop engines.31

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airplane
Propellers
…controllable (variable) pitch, and eight-blade contrarotating pitch. The blade angle on fixed-pitch propellers is set for only one flight regime, and this restriction limits their performance. Some fixed-pitch propellers can be adjusted on the ground to improve performance in one part of the flight regime. Variable-pitch propellers permit the pilot…
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…controllable (variable) pitch, and eight-blade contrarotating pitch. The blade angle on fixed-pitch propellers is set for only one flight regime, and this restriction limits their performance. Some fixed-pitch propellers can be adjusted on the ground to improve performance in one part of the flight regime. Variable-pitch propellers permit the pilot…
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jet engine
Turboprops, propfans, and unducted fan engines
Such counter-rotating propellers are capable of significantly higher propulsive efficiency and higher disk loading than conventional propellers.
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Such counter-rotating propellers are capable of significantly higher propulsive efficiency and higher disk loading than conventional propellers.
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