Parker Variable Wing

Parker Variable Wing

The Parker Variable Wing is a wing configuration in biplane or triplane aircraft designed by H.F. Parker in 1920 ["The Parker variable wing", "NACA Report 77", 1920] . His design allows a supplement in lift while landing or taking-off.The system is depicted in the figure. The figure shows the biplane configuration. The lower airfoil is rigid. The upper airfoil is flexible. At high angle of attack the flow over the lower airfoil will cause the airflow to bend up and create an upward force at the lower surface of the upper airfoil. This upward force will cause the flexible section to bepushed upward. The flexible wing section is held at points A and B. The trailing edge is rigid and can rotate about point B. Due to this effect the camber of the airfoil is increased. And hence the lift it creates is increased.

References

ee also

*Aeroelasticity
*X-53 Active Aeroelastic Wing
*Adaptive Compliant Wing


Wikimedia Foundation. 2010.

Игры ⚽ Нужно сделать НИР?

Look at other dictionaries:

  • Adaptive Compliant Wing — The Adaptive Compliant Wing is a wing design developed by FlexSys, Inc. which is flexible so that its shape can be changed in flight.The wing design features a variable camber trailing edge which can be deflected up to +/ 10°, so that it acts… …   Wikipedia

  • X-53 Active Aeroelastic Wing — Infobox Aircraft name= X 53 caption= F/A 18 configured by NASA as the X 53 type= national origin = United States manufacturer= McDonnell Douglas Northrop designer= first flight= introduction= retired= number built= status= primary user= NASA more …   Wikipedia

  • Variable Antshrike — Taxobox name = Variable Antshrike image caption = male Thamnophilus c. caerulescens from São Paulo, Brazil status = LC status system = iucn3.1 status ref = IUCN2007|assessors=BirdLife International |year=2004|id=50233|title=Thamnophilus… …   Wikipedia

  • Dean Parker — is a screenwriter, playwright, journalist and political commentator based in Auckland, New Zealand. Parker has worked as a writer for much of his life and been prominent in his union, the NZ Writer s Guild. His plays include Midnight in Moscow… …   Wikipedia

  • Aeroelasticity — is the science which studies the interaction among inertial, elastic, and aerodynamic forces. It was defined by Collar in 1947 as the study of the mutual interaction that takes place within the triangle of the inertial, elastic, and aerodynamic… …   Wikipedia

  • Australia — /aw strayl yeuh/, n. 1. a continent SE of Asia, between the Indian and the Pacific oceans. 18,438,824; 2,948,366 sq. mi. (7,636,270 sq. km). 2. Commonwealth of, a member of the Commonwealth of Nations, consisting of the federated states and… …   Universalium

  • education — /ej oo kay sheuhn/, n. 1. the act or process of imparting or acquiring general knowledge, developing the powers of reasoning and judgment, and generally of preparing oneself or others intellectually for mature life. 2. the act or process of… …   Universalium

  • performing arts — arts or skills that require public performance, as acting, singing, or dancing. [1945 50] * * * ▪ 2009 Introduction Music Classical.       The last vestiges of the Cold War seemed to thaw for a moment on Feb. 26, 2008, when the unfamiliar strains …   Universalium

  • Business and Industry Review — ▪ 1999 Introduction Overview        Annual Average Rates of Growth of Manufacturing Output, 1980 97, Table Pattern of Output, 1994 97, Table Index Numbers of Production, Employment, and Productivity in Manufacturing Industries, Table (For Annual… …   Universalium

  • List of birds of Colombia — This is a list of the bird species recorded in Colombia. The avifauna of Colombia includes a total of 1895 species, of which 74 are endemic, 2 have been introduced by humans, and 87 are rare or accidental. 1 species listed is extirpated in… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”