Aresearch.130 net.columbia utzoo!decvax!duke!mhtsa!research!sjb Sun Nov 1 15:34:31 1981 progress report The $2 million water spray system, hoped to alleviate the SRB shock wave problem of STS-1, was loaded with water today -- 400,000 gallons of it to be sprayed in 35 seconds into the SRB exhaust. Shock waves that rebounded off pad 39A in april bent 5 struts, two of which supported the external fuel tank. Also today, windows were cleaned and rockets were ``closed out for flight'' (ready) for the 5 day, 4 hour, 10 minute flight, which will cover 83 orbits. A scheduled 8 hour hold began on schedule today at 1500 EST and almost all activities planned to be finished by then were. The only thing officials are worrying about now is the weather. Predictions say that cloud cover, winds, and temperature should be in the ``acceptable range'' for a Wednesday lift off.