The deployable boom built for MRHE was the result of a joint effort in which ATK was primarily responsible for developing and fabricating the Collapsible RolJable Tube (CRTpatent pending) boom while Lockheed Martin designed and built the motorized Boom Deployment Mechanism (BDM) under a concurrent but separate lR&D program. Tight coordination was necessary to meet testbed integration and functionality requirements. This paper provides an overview of the CRT boom and BDM designs and presents preliminary results of integration and testing to support the MRHE demonstration.Young's modulus (effective E for wide beams in bending) Poisson's ratio width of rectangular cross section (Neg'ator@ spring) thickness of rectangular cross section (Neg'ator@ spring and boom) flexural rigidity diameter of boom storage spool diameter of fully deployed boom length of boom when fully deployed length of deployed section of boom rotation of boom storage spool from boom stowed starting position fabricated diameter ofNeg'ator@ spring"" diameter of spring storage drum diameter ofNeg'ator@ spring output drum torque developed in retraction spring subassembly total strain energy stored in spooled boom total strain energy stored in retraction spring subassembly
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