Hiller Aircraft (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Hiller Aircraft" in English language version.

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books.google.com

cdllife.com

doi.org

  • Nichols, J.B. The Storc Approach to the Helicopter Ferry Problem. Journal of the American Helicopter Society, Volume 8, Number 1, 1 January 1963, pp. 19-25(7), https://doi.org/10.4050/JAHS.8.19
  • Nichols, J., "Tip-Mounted Turbojets for Helicopter Propulsion - A Progress Report," SAE Technical Paper 640345, 1964, https://doi.org/10.4271/640345.

fas.org

  • "NRO review and redaction guide (2006 ed.)" (PDF). National Reconnaissance Office.

helis.com

  • Hiller Helicopters timeline (accessed Nov 9 2011)

hilleraircraft.com

mynet.cn

a1048540290.oinsite.yh.mynet.cn

sfgate.com

shephardmedia.com

web.archive.org