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A single-blade propeller may be used on aircraft to generate thrust. Normally propellers are multiblades but the simplicity of a single-blade propeller fits well on motorized gliders, because it permits the design of a smaller aperture of the glider fuselage for retraction of the powerplant. The counterbalanced teetering mono-blade propeller generates fewer vibrations than conventional multiblade configurations.[citation needed] Single-blade propellers are also more efficient, as the blade passes through clean air, where in multi-blade propellers, each blade passes through turbulent air from the previous blade.

Single-blade propeller drawing.

Single-blade propeller and glider drawing.

Patents[edit]

Sources[edit]

See also[edit]

Samara (fruit) single blade-like seed which autorotates in Nature.



Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/Single-blade_propeller — Please support Wikipedia.
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1 news items

 
Boating Magazine (press release)
Fri, 24 Oct 2014 06:26:43 -0700

A single-blade propeller would be the most efficient, even though it transmits less thrust, since it would create the least drag — if the vibration could be tolerated. As blades are added, efficiency decreases, but so does the vibration level. Most ...
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