USAF launches 20th GPS IIR satellite
Delta IV finally launches with GPS IIF SV-1 following scrubs - NASASpaceFlight.com
File:Delta 7925 with GPS-IIR-14 satellite.jpg - Wikimedia Commons
Delta II GPS IIR-1 Launch and Explosion, January 17, 1997 (Mild Profanity) - YouTube
Delta II GPS IIR-17 | Flickr
GPS IIR-18 DELTA II SANTA'S HELPER ULA LOCKHEED PATCH | eBay
The New Flex Power Mode: From GPS IIR-M and IIF Satellites with Extended Coverage Area - Inside GNSS - Global Navigation Satellite Systems Engineering, Policy, and Design
GPS IIR-1 Rocket Explosion - YouTube
GPS Block IIF - Wikipedia
Delta II Rocket USAF "GPS-IIR-16" - "Shark's Mouth" (1/400) - Space Model - Noble Knight Games
Delta II Launch Failure - Multiple Views - GPS IIR-1, 1997, Rocket Explosion, USAF, Canaveral LC-17 - YouTube
Final GPS block IIR launched > Schriever Space Force Base (Archived) > Article Display
Delta II with GPS payload successfully launches > Air Force > Article Display
DylanDylanSays#TeamSpace on Twitter: "@Alexphysics13 DO NOT GOOGLE WHAT DELTA II GPS IIR DID TO THE PARKING LOT https://t.co/MUysoAS4eM" / Twitter
Ron Eisele on Twitter: "17 January 1997. A Delta II 7925 rocket carrying the first GPS Block IIR satellite, GPS IIR-1, exploded 13 seconds after lift-off, raining debris over Launch Complex 17
Delta II 7925 | GPS IIR-1
Delta II GPS IIR-1 Launch and Explosion, January 17, 1997 (Mild Profanity) - YouTube
ULA Atlas-V Launch of GPS IIF-12 Ends Series with 7 GPS Satellites Launched in 21 Months - AmericaSpace
File:Delta II 7925-9.5 launches with GPS IIR-15.jpg - Wikimedia Commons
Next-generation GPS satellite launched
GPS Block IIF – Spacecraft & Satellites
