Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!cs.utexas.edu!sdd.hp.com!elroy.jpl.nasa.gov!zardoz.cpd.com!dhw68k!ofa123!rick From: rick@ofa123.FIDONET.ORG (Rick Ellis) Newsgroups: sci.space.shuttle Subject: Re: NASA Administrator invites local students to shuttle launches (Forw Message-ID: <111.261E7910@ofa123.FIDONET.ORG> Date: 7 Apr 90 23:28:15 GMT Organization: Universal Electronics Inc. (Gateway) Lines: 23 In a message of , Roy Smith (roy@phri.nyu.edu ) writes: RS> Is there any reason, other than scheduling, why HST (or any other RS> payload) has to fly on any particular vehicle? Are the shuttles all RS> interchangable, or are some of them specially designed or outfitted RS> for particular tasks? Here's one: "If OV-102 is used, the cargo-lift weight capability must be decreased by approximately 8,400 pounds. This weight difference is attributed to an approximately 7,150-pound difference in inert weight, 850 pounds of orbiter experiments, 300 pounds of additional thermal protection system and 100 pounds to accommodate a fifth cryogenic liquid oxygen and liquid hydrogen tank set for the power reactant storage and distribution system." -- Rick Ellis ...!{dhw68k,zardoz,lawnet,conexch}!ofa123!rick rick@ofa123.FIDONET.ORG 714 544-0934 2400/1200/300