This document contains a definition of a reference Saturn IB launch vehicle designated SA-217. The Saturn IB SA-217 is a projected reference vehicle, based on Saturn IB SA-212, incorporating the latest proposed product improvements. The two-stage payload capability of this vehicle to a 100-nautical-mile circular orbit is 44,965 pounds. The Saturn IB SA-217 launch vehicle is to be used as the baseline vehicle for advanced studies requiring the use of the standard or modified Saturn IB launch vehicle. This vehicle definition does not necessarily represent approved changes to any specific vehicle. This document supersedes the Saturn IB SA-213 reference Launch Vehicle, described in memorandum R-P&VE-DIR-65-92.
