Delta II

This article is about the rocket. For the submarine see Delta class submarine. Delta II is a space launch system originally designed and built by McDonnell Douglas, then later built by Integrated Defense Systems division of Boeing. The Delta II is part of the Delta rocket family and has been in service since 1989. The Delta II includes the retired Delta 6000, the active Delta 7000, and two 7000 variants (light and heavy). The Delta II program became the responsibility of United Launch Alliance on December 1, 2006.
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