alb@alice.UUCP (09/01/83)
The astronauts yesterday flexed the remote manipulator system and tested its strength in space by grappling a 7460 pound dummy satellite and moving it around the cargo bay. It was the heaviest payload the arm has lifted yet. On STS-13, the arm will grapple the 5000 pound sun observatory satellite, bring it into the cargo bay for repair, and then redeploy it in orbit.