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- XC-69 NX25600 Constellation in flight
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- The prototype XC-69 Constellation over Wright Field
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- Lockheed XC-69 Constellation in flight
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- C-69 Constellation serial 43-10315 in flight 2
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- C-69 Constellation serial 43-10315 in flight
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- Maiden Flight of Lockheed XC-69 January 9, 1943
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- First Lockheed C-69 Constellation NX25600 on the ground
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- Lockheed C-69 NX25600 at Burbank
Military variant of the Lockheed L-049 Constellation.
Bibliography:
- Rene J. Francillon: Lockheed Aircraft Since 1913
- E.R. Johnson: American Military Transport Aircraft Since 1925
- Austin J. Brown: Lockheed Constellation
- Curtis K. Stringfellow, Peter M. Bowers: Lockheed Constellation: Design, Development, and Service History of all Civil and Military Constellations, Super Constellations, and Starliners
- Steve Pace: Lockheed’s Constellation – Enthusiast Color Series
- Claude G. Luisada: Queen of the Skies: The Lockheed Constellation
- Scott Germain: Lockheed  Constellation & Super Constellation – Airliner Tech Volume 1
- Jim Winchester: Lockheed Constellation – Classic Airliners
- Holmes G. Anderson: The Lockheed Constellation, Aircraft Profile Number 120