single-blade propeller
{{Short description|Type of propeller}}
{{No footnotes|date=October 2023}}
File:Single-blade propeller drawing.gif
File:Single-blade propeller and glider drawing.gif
A single-blade propeller may be used on aircraft to generate thrust. Normally propellers are multi-blades 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 power plant. The counterbalanced teetering mono-blade propeller generates fewer vibrations than conventional multi-blade configurations.{{Citation needed|date=February 2009}} Often, single blade propeller configurations are touted as having a much greater efficiency than multi-blade propellers, but this is a falsehood outside the inertial losses in spinning a heavier propeller, and the minimal additional drag from added blades.{{Citation needed|date=December 2016}} Single bladed propellers are principally used to fulfill engineering requirements that fall outside the scope of efficiency.
Patents
- [https://patents.google.com/patent/US2742095 US Patent 2742095 Mechanism for balancing single blade aircraft rotor]
- [https://patents.google.com/patent/US6619585 US Patent 6619585 Helicopter single-blade rotor]
- [https://patents.google.com/patent/US5971322 US Patent 5971322] - Propeller propulsion unit for aircraft in general
See also
- Samara (fruit) single blade-like seed which autorotates in nature.
Sources
- https://web.archive.org/web/20070418051732/http://www.glidingmagazine.com/FeatureArticle.asp?id=368
- https://web.archive.org/web/20070202111444/http://www.alisport.com/eu/images/img_news/Volaresett04/VOLARE_SETT04.htm
{{Aircraft piston engine components}}
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