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'''Stealth helicopters''' are ]s that incorporate ] to avoid detection. While there are no officially operating helicopters that fit this description, there are a few that have been retired, rumoured, or canceled: '''Stealth helicopters''' are ]s that incorporate ] to avoid detection. In recent years, designs for blades have emerged that can significantly reduce the noise.<ref>Nusca, Andrew. , '']'', March 2, 2010. Retrieved May 6, 2011.</ref>

==Types==

While there are no officially operating helicopters that fit this description, there are a few that have been retired, rumored, or canceled:


* ] (1972), nicknamed "The Quiet One" for work done to reduce the noise of its operation and used by the CIA during the Vietnam war to deploy a wiretap<ref>Chiles, James R. Washington: ] (Smithsonian Business Ventures), February–March 2008, pp. 62–70. ISSN 0886-2257. Retrieved May 6, 2011.</ref> * ] (1972), nicknamed "The Quiet One" for work done to reduce the noise of its operation and used by the CIA during the Vietnam war to deploy a wiretap<ref>Chiles, James R. Washington: ] (Smithsonian Business Ventures), February–March 2008, pp. 62–70. ISSN 0886-2257. Retrieved May 6, 2011.</ref>
* ] (1996-2004),<ref name=bbc-binladen>, BBC News, 6 May 2011</ref> canceled * ] (1996-2004),<ref name=bbc-binladen>, BBC News, 6 May 2011</ref> canceled
* A modified ], used in the ] that killed ]. The aircraft seemed to include features like special high-tech materials, harsh angles, and flat surfaces, previously found only on sophisticated ].<ref>{{cite news |title = US used never-seen-before stealth helicopters for Osama raid |url= http://www.ndtv.com/article/world/us-used-never-seen-before-stealth-choppers-for-osama-raid-103637 |accessdate = 5th May 2011 |date = 5th May 2011}}</ref><ref name=ABC_Stealth_Helicopter>Ross, Brian, Schwartz, Rhonda, Ferran, Lee, and Patel, Avni. . ABC World News, 4 May 2011.</ref><ref name=Army_Times_stealth_Black_Hawk>{{citation |publisher = Army Times |date = 2011-5 |author= Naylor, Sean D. |url = http://www.armytimes.com/news/2011/05/army-mission-helocopter-was-secret-stealth-black-hawk-050411/ |title = Army mission helicopter was secret, stealth Black Hawk |date= 4 May 2011}}</ref>
* A previously unknown helicopter type (2011), possibly a modification of a ], used in the raid that resulted in the ]<ref name=bbc-binladen/><ref>Axe, David. , ], May 4, 2011</ref>

In recent years, designs for blades have emerged that can significantly reduce the noise.<ref>Nusca, Andrew. , '']'', March 2, 2010. Retrieved May 6, 2011.</ref>


==See also== ==See also==

Revision as of 05:50, 7 May 2011

Stealth helicopters are helicopters that incorporate stealth technology to avoid detection. In recent years, designs for blades have emerged that can significantly reduce the noise.

Types

While there are no officially operating helicopters that fit this description, there are a few that have been retired, rumored, or canceled:

See also

References

  1. Nusca, Andrew. Silent rotor blades could lead to true stealth helicopters, SmartPlanet, March 2, 2010. Retrieved May 6, 2011.
  2. Chiles, James R. Air America's Black Helicopter. Washington: Air & Space Smithsonian (Smithsonian Business Ventures), February–March 2008, pp. 62–70. ISSN 0886-2257. Retrieved May 6, 2011.
  3. 'Stealth helicopters' used in Bin Laden raid, BBC News, 6 May 2011
  4. "US used never-seen-before stealth helicopters for Osama raid". 5th May 2011. Retrieved 5th May 2011. {{cite news}}: Check date values in: |accessdate= and |date= (help)
  5. Ross, Brian, Schwartz, Rhonda, Ferran, Lee, and Patel, Avni. "Top Secret Stealth Helicopter Program Revealed in Osama Bin Laden Raid: Experts". ABC World News, 4 May 2011.
  6. Naylor, Sean D. (4 May 2011), Army mission helicopter was secret, stealth Black Hawk, Army Times
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