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2. Category:Helicopter components - Wikipedia

   en.wikipedia.org/wiki/Category:Helicopter_components

   Pages in category "Helicopter components" The following 22 pages are in this category, out of 22 total. This list may not reflect recent changes. A. Apache Arrowhead; B.

3. List of rotorcraft - Wikipedia

   en.wikipedia.org/wiki/List_of_rotorcraft

   List of utility helicopters; References External links. Media related to Rotorcraft at Wikimedia Commons This page was last edited on 29 October 2024, at 13:30 ...

4. Helicopter - Wikipedia

   en.wikipedia.org/wiki/Helicopter

   Oil companies charter helicopters to move workers and parts quickly to remote drilling sites located at sea or in remote locations. The speed advantage over boats makes the high operating cost of helicopters cost-effective in ensuring that oil platforms continue to operate. Various companies specialize in this type of operation. [citation needed]

5. List of rotorcraft manufacturers by country - Wikipedia

   en.wikipedia.org/wiki/List_of_rotorcraft...

   Revolution Helicopter Corporation (defunct) – went out of business in November 1999; Robinson Helicopter [18] RotorWay International – produces kit helicopters [28] Sikorsky Aircraft [56] Schweizer Aircraft – acquired by Sikorsky Aircraft in 2004 and closed down in 2011 and 2012 [57] Spitfire Helicopter Company [26]

6. List of ultralight helicopters - Wikipedia

   en.wikipedia.org/wiki/List_of_ultralight_helicopters

   List of ultralight helicopters. 4 languages. ... Dynali H3 & AK1-3 parts [14] Gray Zhu bi-place heli China 2 seat bi-place copter [15] Lightest coaxial heli China

7. List of United States military helicopters - Wikipedia

   en.wikipedia.org/wiki/List_of_United_States...

   Experimental helicopter Platt-LePage Aircraft Company: First helicopter tested by the USAAF. [1] 1941 Never 2 Sikorsky R-4: Sikorsky Aircraft Corporation: World's first large-scale mass-produced helicopter and the first helicopter used by the United States Army Air Forces. [2] 1942 Unknown 131 Sikorsky H-5: Sikorsky Aircraft Corporation 1943 ...

8. Category:Helicopters - Wikipedia

   en.wikipedia.org/wiki/Category:Helicopters

   Pages in category "Helicopters" The following 56 pages are in this category, out of 56 total. This list may not reflect recent changes. ...

9. Coaxial-rotor aircraft - Wikipedia

   en.wikipedia.org/wiki/Coaxial-rotor_aircraft

   The U.S. Department of Transportation has published a “Basic Helicopter Handbook”. One of the chapters in it is titled, “Some Hazards of Helicopter Flight'. Ten hazards have been listed to indicate what a typical single rotor helicopter has to deal with. The coaxial rotor design either reduces or completely eliminates many of these hazards.