DemoSat

{{Short description|Satellite mock-up}} [[Image:Demosat with 3CSat.jpg|thumb|Demosat-Payload on the first Delta IV-Heavy rocket]] A '''DemoSat''' is a boilerplate spacecraft used to test a carrier rocket without risking a real satellite on the launch. They are most commonly flown on the maiden flights of rockets, but have also been flown on return-to-flight missions after launch failures. Defunct satellites from cancelled programmes may be flown as DemoSats, for example the maiden flight of the Soyuz-2 rocket placed an obsolete Zenit-8 satellite onto a sub-orbital trajectory in order to test the rocket's performance.<ref>[http://www.astronautix.com/lvs/soyuz.htm#2004-U01 Soyuz-ST - Encyclopedia Astronautica] {{webarchive|url=https://web.archive.org/web/20100107163113/http://astronautix.com/lvs/soyuz.htm |date=2010-01-07 }}</ref>

==See also== *Boilerplate (spaceflight)

==References== {{reflist}}

{{Use British English|date=January 2014}}

Category:Satellites by type Category:Dummy payloads

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