re space manuevering tug was hst servicing mission prb access digex net pat writes given that what i described for the hst seemed to be the smt and given the mass amrgins on the discovery mission is tight enough that spacewalking has to be carefully constrained no edo pallets no spare suits no extra mmu s has someone actually verified that mass is the predominant constraint on this mission you seem to be assuming it without giving supporting evidence why not do this quick test goldins philosophjy of faster cheaper better build a real fast space tug to handle the re boost of the hst using clean cryo fuels and get it ready before the hst mission pat this would be slower more expensive and worse slower the shuttle mission is scheduled to go up in december that s less than eight months away there is no way you could build new hardware retrain and reschedule the eva s in that time more expensive your proposal still requires the shuttle to do everything it was going to do execpt fire the oms in addition you ve added significant extra cost for a new piece of complex hardware according to a gao report on the omv i have before me there are only two currently planned missions that could use such a vehicle hst and axaf since axaf has since been scaled back and hst can rely on the shuttle there doesn t seem to be any need for your vehicle josh hopkins jbh uxa cso uiuc edu find a way or make one attributed to hannibal
