Harold Frederick Pitcairn (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Harold Frederick Pitcairn" in English language version.

refsWebsite

Global rank English rank

3web.archive.org

1^st place

1^st place

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7^th place

2scholar.google.com

1,697^th place

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2,762^nd place

1,498^th place

1nationalaviation.org

low place

low place

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6,187^th place

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7,155^th place

9^th place

13^th place

1ghostarchive.org

32^nd place

21^st place

1justhelicopters.com

low place

low place

aerofiles.com

"Collier Trophy". Retrieved 2007-10-11.

ghostarchive.org

Charnov, Bruce H. (5–8 October 2020). The Life and Mysterious Death of Harold F. Pitcairn: Was it Suicide?. Vertical Flight Society's 76th Annual Forum. Archived from the original on 2021-12-12. Retrieved 25 October 2020.

hofstra.edu

Charnov, Bruce H. Cierva, Pitcairn and the Legacy of Rotary-Wing Flight Archived 2016-03-03 at the Wayback Machine Hofstra University. Accessed: 22 November 2011.

justhelicopters.com

"Rotorcraft pioneers". Archived from the original on 17 March 2012. Retrieved 23 January 2011.

nationalaviation.org

"Harold Pitcairn". The National Aviation Hall of Fame. Archived from the original on 5 August 2011. Retrieved 5 April 2011.

nytimes.com

"Harold Pitcairn Takes Life At 62. Plane and Autogiro Pioneer Shoots Himself at Home in Philadelphia Suburb". Associated Press in the New York Times. April 24, 1960. Harold F. Pitcairn, noted aviation pioneer, took his life with a single pistol shot early today. Only a few hours before he had been notably gay at a party celebrating the seventy-fifth birthday of his brother Raymond. ...
Weaver, Warren Jr. (1978-01-24). "Record $39 Million Award Upheld In Infringement of Autogiro Patents". The New York Times. p. 43. Retrieved 2021-06-12.

scholar.google.com

Autogiro Company of America v. United States, 384 F.2d 391 (Ct. Cl. 1967-10-13).
Stephen Pitcairn, Agent v. United States, 547 F.2d 1106 (Ct. Cl. 1976-12-15).

state.pa.us

phmc.state.pa.us

"PHMC Harold F. Pitcairn". Retrieved 2 April 2017.

web.archive.org

"Harold Pitcairn". The National Aviation Hall of Fame. Archived from the original on 5 August 2011. Retrieved 5 April 2011.
Charnov, Bruce H. Cierva, Pitcairn and the Legacy of Rotary-Wing Flight Archived 2016-03-03 at the Wayback Machine Hofstra University. Accessed: 22 November 2011.
"Rotorcraft pioneers". Archived from the original on 17 March 2012. Retrieved 23 January 2011.

youtube.com

Charnov, Bruce H. (5–8 October 2020). The Life and Mysterious Death of Harold F. Pitcairn: Was it Suicide?. Vertical Flight Society's 76th Annual Forum. Archived from the original on 2021-12-12. Retrieved 25 October 2020.