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A helicopter is an aircraft that is lifted and propelled by one or more horizontal rotors, each rotor consisting of two or more rotor blades. Helicopters are classified as rotorcraft or rotary-wing aircraft to distinguish them from fixed-wing aircraft because the helicopter derives its source of lift from the rotor blades rotating around a mast. The word 'helicopter' is adapted from the French hélicoptère, coined by Gustave de Ponton d'Amecourt in 1861. It is derived from the Greek words helix/helik- ( ) = "spiral" or "turning" and pteron ( ) = "wing".

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Wikipedia about Helicopters

A helicopter is an aircraft that is lifted and propelled by one or more horizontal rotors, each rotor consisting of two or more rotor blades. Helicopters are classified as rotorcraft or rotary-wing aircraft to distinguish them from fixed-wing aircraft because the helicopter derives its source of lift from the rotor blades rotating around a mast. The word 'helicopter' is adapted from the French hélicoptère, coined by Gustave de Ponton d'Amecourt in 1861. It is derived from the Greek words helix/helik- ( ) = "spiral" or "turning" and pteron ( ) = "wing".

As an aircraft, the primary advantages of the helicopter are due to the rotor blades that revolve through the air, providing lift without requiring the aircraft to move forward. This creates the ability for the helicopter to take off and land vertically without a runway. For this reason, helicopters are often used in congested or isolated areas where fixed-wing aircraft cannot take off or land. The lift from the rotor also allows the helicopter to hover in one area and more efficiently than other forms of vertical takeoff and landing (VTOL) aircraft, allowing it to accomplish tasks that fixed-wing aircraft cannot perform.

Although helicopters were developed and built during the first half-century of flight, some even reaching limited production, it was not until 1942 that a helicopter designed by Igor Sikorsky reached full-scale production,Munson 1968 with 131 aircraft built.Hirschberg, Michael J. and David K. Dailey, "Sikorsky." US and Russian Helicopter Development In the 20th Century. American Helicopter Society, International. 7 July 2000. Even though most previous designs used more than one main rotor, it was the single main rotor with antitorque tail rotor configuration of this design that would come to be recognized worldwide as the helicopter.

History

Since 400 AD, Chinese children have played with bamboo flying toys. This toy made its way to Europe and is depicted in a 1463 European painting.Goebel, Greg. "The Invention Of The Helicopter". Vectorsite.net. Retrieved: 28 November 2007. A book written in 4th-century China, referred to as Pao Phu Tau (also Pao Phu Tzu or Bao Pu Zi, 抱朴子), is reported to describe some of the ideas inherent to rotary wing aircraft:Fay, John. "Helicopter Pioneers - Evolution of Rotary Wing Aircraft". Helicopter History Site. Retrieved: 28 November 2007.

cquote: Someone asked the master about the principles of mounting to dangerous heights and traveling into the vast inane. The Master said, "Some have made flying cars with wood from the inner part of the jujube tree, using ox-leather 1 fastened to returning blades so as to set the machine in motion."

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MD Helicopters - American Pride Rising to New Heights

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Radio-controlled helicopter - Wikipedia, the free encyclopedia

Larger electric helicopters suitable for outdoor flight and advanced aerobatics ... Small fixed-pitch helicopters need a 4-channel radio (throttle, elevator, ...en.wikipedia.org/wiki/Radio-controlled_helicopter

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Providing comprehensive coverage of commercial, corporate, general, and military rotary-wing aviation in Canada and around the world.www.helicoptersmagazine.com/

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Congo-Kinshasa: Rocket-Firing UN Helicopters Attack Rebels in Eastern DR Congo

AllAfrica.comUnited Nations attack helicopters firing rockets went into action in the eastern Democratic Republic of the Congo (DRC) today after rebels attempting to advance against the Government opened fire on UN reconnaissance planes.http://allafrica.com/stories/200810030002.html

Minster says 'no go' to combat helicopters

The Copenhagen PostThe defence minister Søren Gade has ruled out the purchase of combat helicopters for the armed forces. 'Combat helicopters can't be used for surveillance, interception or transport. They can only be used to kill large numbers of people.http://www.cphpost.dk/get/109352.html

U.S. approves $6.5 billion in Taiwan arms sales

Reuters via Yahoo! News The U.S. government on Friday announced about $6.5 billion in advanced arms sales to Taiwan, including 30 Boeing Co Apache attack helicopters and 330 Patriot missiles, a move that could well anger China.http://news.yahoo.com/s/nm/20081004/wl_nm/us_taiwan_usa_1

US Congress notified of possible 6.5 billion dollar Taiwan arms sales

AFP via Yahoo! News The Pentagon notified Congress Friday of 6.5 billion dollars in possible arms sales to Taiwan that would include advanced interceptor missiles, Apache attack helicopters and submarine-launched missiles.http://news.yahoo.com/s/afp/20081003/pl_afp/ustaiwanmilitary...

Congress notified of possible 6.5 billion dollar Taiwan arms sales

AFP via Yahoo! News The Pentagon notified Congress Friday of 6.5 billion dollars in possible arms sales to Taiwan that would include advanced interceptor missiles, Apache helicopters and submarine-launched missiles.http://news.yahoo.com/s/afp/20081003/wl_asia_afp/ustaiwanmil...

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Father says Britt was butchered

News.com.auCruise boats going past, helicopters flying over. She jumped off a cliff in Dubrovnik and has sat there for 18 days? Something is wrong. I can smell a rat." An autopsy later today should be able to confirm or rule out his fears. Mr Lapthorne will ... http://www.news.com.au/story/0,23599,24486459-1243,00.html

Top general: NATO not losing Afghan war

MSNBCEchoing calls that other U.S. and NATO leaders have made for months, McKiernan said he needs more military forces but also more helicopters, transport planes and civil affairs teams. He said country mandated restrictions that keep some NATO members ... http://www.msnbc.msn.com/id/27150510/

AP Top News at 4:00 p.m. EDT

Guardian UnlimitedFire burns 750 acres northeast of Los Angeles LOS ANGELES (AP) — Firefighters backed by water-dumping helicopters and planes gained ground Sunday on a wildfire that destroyed two homes and forced the evacuation of about 1,200 people in a ... http://www.guardian.co.uk/world/feedarticle/7859294

Taleban stage audacious 'Tet-style' attack on British HQ city

Times OnlineThere were then follow up strikes by British Apache ground attack helicopters on further concentrations of Taleban fighters. Afghan National Army and Police were also involved in ground skirmishes around the city limits which continued until 3am on ... http://www.timesonline.co.uk/tol/news/world/asia/article4930...

Napa Valley wildfire nearly contained

San Francisco GateHelicopters dropped fire retardant Saturday while crews cut and bulldozed a firebreak. Two firefighters suffered minor injuries, officials said. While fire crews fought the blaze, Darlene McDannald, 72, and her husband, Jimmy, 83, stood looking at the ... http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2008/10/11/...

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Robinson Helicopter Company Main Page

Robinson is the World Leader in helicopter sales offering the reliable and affordable R22 and R44 helicopters. Whether used for personal, corporate, police, or news applications ... http://www.robinsonheli.com/

MD Helicopters - American Pride Rising to New Heights

customer training | sales & marketing | supplier support | price catalog | online sor | faq's | shows & exhibitions copyright © 2007 md helicopters inc.http://www.mdhelicopters.com/

Helicopters Northwest - Helicopter Flight Training

Helicopters Northwest offers top-notch helicopter flight instruction in the Seattle area.http://www.helicoptersnw.com/

Helicopters

BUY THE NEW HELICOPTERS ALBUM SIZING UP THE DISTANCE FROM: The Helicopters Store iTunes Store Amazon.com Target.com FOLLOW HELICOPTERS ON: MySpace /// Facebook /// Twitter /// The ... http://www.ilovehelicopters.com/

Carson Helicopters

Carson Helicopters prides itself in using science and technology to enhance the performance of the Sikorsky S61 Helicopter, creating the first multi-tool Helicopter.http://www.carsonhelicopters.com/
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Answers for Helicopters

stingjam

What type of helicopters can fly in hurricanes?

stingjamNot a great idea to fly a helo into a hurricane, but... The 106th Air Sea Rescue Squadron of the New York Air National Guard did fly the HH-60 helo into the teeth of the "Perfect Storm". If you saw...
David B

What are the practical restrictions on landing helicopters?

David BYou're generally limited most by state and local regulations. So long as you're safe, and don't violate any other rules, the FAA won't typically get involved. But, other jurisdictions can have str...
Hector

How do flight simulators that run RC helicopters from a computer work?

Hectorinterface http://www.milehighwings.com/
Sarah S

Where can I get performance cost evaluations on Bell Helicopters?

Sarah Shttp://www.bellhelicopter.textron.com/en/index.cfm
wrongnumber

What would you call the sound helicopters make?

wrongnumberdrone?

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