Uploaded May 2021 | Updated September 2026, 1 day ago

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On April 9, 1999, a Titan IV(402)B with an Inertial Upper Stage (IUS) launched the B-27 mission from Cape Canaveral's Launch Pad 41. The payload was a Defense Support Program (DSP) reconnaissance satellite.


This is the first of two engineering stringout videos. The second video is at youtube.com/watch?v=fYIXQBfYNHY.


Visit our web site at www.afspacemuseum.org. We're on Twitter at @afspacemuseum.

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