^“XQ-58A Valkyrie demonstrator completes inaugural flight”. 88 Air Base Wing Public Affairs, Wright Patterson AFB (6 March 2019). 7 March 2019閲覧。
^ ab“XQ-58A Valkyrie demonstrator completes inaugural flight”. 88 Air Base Wing Public Affairs, Wright Patterson AFB (6 March 2019). 7 March 2019閲覧。"XQ-58A Valkyrie demonstrator completes inaugural flight". 88 Air Base Wing Public Affairs, Wright Patterson AFB. 6 March 2019. Retrieved 7 March 2019.
^“Kratos to launch XQ-222 Valkyrie, UTAP-22 Mako at Paris Air Show 2017” (15 June 2017). 15 June 2017閲覧。
^Rogoway. “More Details On Kratos’ Optionally Expendable Air Combat Drones Emerge”. The Drive. 31 December 2018閲覧。
^Liptak (2019年5月22日). “‘Skyborg’ could let F-35 and F-15 fighter jets control their own companion drones”. The Verge. 2019年5月23日閲覧。
^Rogoway. “More Details On Kratos’ Optionally Expendable Air Combat Drones Emerge”. The Drive. 31 December 2018閲覧。Rogoway, Tyler. "More Details On Kratos' Optionally Expendable Air Combat Drones Emerge". The Drive. Retrieved 31 December 2018.
^Four companies win contracts to build the Air Force’s Skyborg drone. Defense News. 24 July 2020.
^4 Companies Move Forward in Skyborg Competition. Air Force Magazine. 24 July 2020.
^Air Force Chooses Four Contractors To Compete For Skyborg Drone. Breaking Defense. 24 July 2020.
^AF Will Choose Skyborg Prototypes This Summer. Breaking Defense. 28 July 2020.
^These 3 companies will build prototypes for the Air Force’s Skyborg drone. Defense News. 7 December 2020.
^Three Companies Win New Skyborg Prototyping Contracts. Air Force Magazine. 8 December 2020.
^Valkyrie drone launches even smaller drone from inside payload bay. Defense News. 5 April 2021.
^Valkyrie UAS Launches Small UAS from Weapons Bay. Aviation International News. 6 April 2021.
^AFRL successfully completes XQ-58A Valkyrie flight and payload release test. Air Recognition. 6 April 2021.