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A single-blade propeller may be used on aircraft to generate
US Patent 2742095 Mechanism for balancing single blade aircraft rotor
US Patent 6619585 Helicopter single-blade rotor
US Patent 5971322
- Propeller propulsion unit for aircraft in general
A single-blade propeller may be used on aircraft to generate thrust
Thrust is a reaction force described quantitatively by Newton's third law. When a system expels or accelerates mass in one direction, the accelerated mass will cause a force of equal magnitude but opposite direction to be applied to that ...
. Normally propellers
A propeller (often called a screw if on a ship or an airscrew if on an aircraft) is a device with a rotating hub and radiating blades that are set at a pitch to form a helical spiral which, when rotated, exerts linear thrust upon a working flu ...
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. 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. Single bladed propellers are principally used to fulfill engineering requirements that fall outside the scope of efficiency.
Patents
US Patent 2742095 Mechanism for balancing single blade aircraft rotor
US Patent 6619585 Helicopter single-blade rotor
US Patent 5971322
- Propeller propulsion unit for aircraft in general
See also
*Samara (fruit)
A samara (, ) is a winged achene, a type of fruit in which a flattened wing of fibrous, papery tissue develops from the ovary wall. A samara is a Simple fruit, simple dry fruits, dry fruit, and is Dehiscence (botany), indehiscent (not Dehiscen ...
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 Propellers {{Component-aircraft-stub