The Shahab-4 (Persian: شهاب-۴, meaning "Meteor-4") (aka IRIS) was an unbuilt Iranian space launch vehicle derived from the Shahab-3 medium-range ballistic missile.[1] The IRIS/Shahab-4 project was intiated in 1988, but it never went beyond the drawing board. Nevertheless, the design heritage of the IRIS was later incorporated into the Safir.[2]
This Template lists historical, current, and future space rockets that at least once attempted (but not necessarily succeeded in) an orbital launch or that are planned to attempt such a launch in the future
Symbol † indicates past or current rockets that attempted orbital launches but never succeeded (never did or has yet to perform a successful orbital launch)