Aerial reconnaissance (English Wikipedia)

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coldwar.org

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"Upgrades Dominate Small UAV Payload Design Activities". Archived from the original on 27 September 2016. Retrieved 26 September 2016.

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Ehrhard, Thomas P. (July 2010). "Air Force UAVs: The Secret History" (PDF). Defense Technical Information Center (DTIC®). Mitchell Institute for Airpower Studies. Archived from the original on May 18, 2017. Retrieved 20 July 2015.

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Nicholas M. Short Sr. "History of Remote Sensing: In the Beginning; Launch Vehicles". Archived from the original on 30 January 2009. Retrieved 2009-03-13.
Nicholas M. Short Sr. "Remote Sensing Tutorial Overview". Archived from the original on 26 February 2009. Retrieved 13 March 2009. (photographs by Alfred Nobel's rocket and the Bavarian pigeon fleet)

flightglobal.com

"Analysts predict A-10, U-2 retirements in FY15." Flightglobal.com, 7 February 2014. Retrieved: 7 December 2015.
Drew, James. "U-2 poised to receive radar upgrade, but not un-manned conversion." Flightglobal.com, 31 July 2015. Retrieved: 7 December 2015.
Trimble, Stephen (10 December 2009). "RQ-170 not intended to replace Predators and Reapers". FlightGlobal. The DEW Line blog. Archived from the original on 15 December 2009. Retrieved 11 December 2009.

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Butler, Amy and David A Fulghum. "USAF not ready to retire the U-2." Archived 8 December 2012 at the Wayback Machine. Aviation Week, 26 August 2008. Retrieved: 10 March 2009.
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mst.edu

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"Early Days Remote Sensing (PDF)" (PDF). web.mst.edu.

northstargallery.com

"The History of Aerial Photography". Archived from the original on 6 September 2008. Retrieved 13 March 2009.
"A Brief History of Aerial Photography". Archived from the original on 2008-09-06. Retrieved 2014-01-11.

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Podolski Consulting (2009). "History of Aerial Photography". Archived from the original on 6 March 2009. Retrieved 13 March 2009.

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Allied Central Interpretation Unit (ACIU) Archived March 12, 2013, at the Wayback Machine

rocketry.wordpress.com

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rusi.org

Bronk, Justin (5 November 2013). "Speed is the New Stealth: The SR-72 Challenges the Future at Mach 6". Royal United Services Institute. Retrieved 22 August 2017.

southsearepublic.org

"Lieutenant Leonard T.E. Taplin, D.F.C". Southsearepublic.org. Archived from the original on July 15, 2012. Retrieved 24 January 2013.

web.archive.org

"Military Use of Balloons During the Napoleonic Era". U.S. Centennial of Flight Commission. Archived from the original on May 28, 2010. Retrieved 1 April 2007.
Nicholas M. Short Sr. "History of Remote Sensing: In the Beginning; Launch Vehicles". Archived from the original on 30 January 2009. Retrieved 2009-03-13.
Podolski Consulting (2009). "History of Aerial Photography". Archived from the original on 6 March 2009. Retrieved 13 March 2009.
Nicholas M. Short Sr. "Remote Sensing Tutorial Overview". Archived from the original on 26 February 2009. Retrieved 13 March 2009. (photographs by Alfred Nobel's rocket and the Bavarian pigeon fleet)
"The History of Aerial Photography". Archived from the original on 6 September 2008. Retrieved 13 March 2009.
Mark Wade. "Maul Camera Rocket". Archived from the original on 7 March 2009. Retrieved 13 March 2009. (summary and photo)
U.S. Centennial of Flight Commission: Aviation at the Start of the First World War Archived 9 October 2012 at the Wayback Machine
"A Brief History of Aerial Photography". Archived from the original on 2008-09-06. Retrieved 2014-01-11.
"Lieutenant Leonard T.E. Taplin, D.F.C". Southsearepublic.org. Archived from the original on July 15, 2012. Retrieved 24 January 2013.
"Unlocking Buckinghamshire's Past". Archived from the original on 2012-08-16. Retrieved 2014-01-11.
Allied Central Interpretation Unit (ACIU) Archived March 12, 2013, at the Wayback Machine
"FAI Canberra World Records." Archived 12 February 2009 at the Wayback Machine fai.org. Retrieved 18 October 2009.
"RB-47E USSR Overflights by the 91st SRW." Archived 2008-02-27 at the Wayback Machine The Cold War Museum. Retrieved 16 August 2019.
Ehrhard, Thomas P. (July 2010). "Air Force UAVs: The Secret History" (PDF). Defense Technical Information Center (DTIC®). Mitchell Institute for Airpower Studies. Archived from the original on May 18, 2017. Retrieved 20 July 2015.
Fickes, Michael (October 1, 2004). "Automated Eye In The Sky". GovernmentSecurity.com. Archived from the original on March 18, 2005. Retrieved 13 March 2009.
Butler, Amy and David A Fulghum. "USAF not ready to retire the U-2." Archived 8 December 2012 at the Wayback Machine. Aviation Week, 26 August 2008. Retrieved: 10 March 2009.
Norris, Guy (4 November 2013). "Skunk Works Reveals SR-71 Successor Plan". Aviation Week & Space Technology. Archived from the original on March 30, 2015.
Axe, David (13 December 2012). "7 Secret Ways America's Stealth Armada Stays Off the Radar". Wired. Archived from the original on 17 December 2012. Retrieved 14 December 2012.
Trimble, Stephen (10 December 2009). "RQ-170 not intended to replace Predators and Reapers". FlightGlobal. The DEW Line blog. Archived from the original on 15 December 2009. Retrieved 11 December 2009.
"Aeryon Scout Micro UAV Helps Libyan Rebels in March to Tripoli". aeryon.com. Archived from the original on 2011-09-19. Retrieved 2012-04-18.
"Upgrades Dominate Small UAV Payload Design Activities". Archived from the original on 27 September 2016. Retrieved 26 September 2016.

wikiwix.com

archive.wikiwix.com

Sherman, Jason and Daniel G Dupont. "DoD cuts Air Force aircraft fleet." Archived 24 February 2008 at Wikiwix Military.com, 11 January 2006. Retrieved: 8 March 2009.

wired.com

Axe, David (13 December 2012). "7 Secret Ways America's Stealth Armada Stays Off the Radar". Wired. Archived from the original on 17 December 2012. Retrieved 14 December 2012.