Editing Ariane 1 (section)

== Design ==
With lift-off mass of {{convert|210000|kg|lb|abbr=on}}, Ariane 1 was able to put in [[geostationary transfer orbit]] one [[satellite]] or two smaller of a maximal weight of {{convert|1850|kg|lb|abbr=on}}. The cost of program is estimated at 2 billion euros.

The Ariane 1 was a four-stage vehicle (fourth stage put satellite from GTO to GEO is usually not counted as part of rocket, because it is included in 1,850&nbsp;kg of payload). The first stage was equipped with 4 Viking engines developed by the [[Société Européenne de Propulsion]]. The second stage had a single Viking engine. The third stage had one [[LOX]]/[[LH2]] [[bipropellant rocket|bipropellant engine]] capable of a [[thrust]] of {{cvt|7,000|kgf|kN lbf}}. 

This design was kept in the Ariane series until [[Ariane 4]].<ref>{{cite web|url=http://www.astronautix.com/a/ariane.html|archive-url=https://web.archive.org/web/20161228093830/http://astronautix.com/a/ariane.html|url-status=dead|archive-date=December 28, 2016|title=Ariane rocket family|date=2004-05-04|publisher=Astronautix|work=Mark Wade|access-date=2009-09-28}}</ref>