Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!ukma!husc6!rice!titan!phil From: phil@titan.rice.edu (William LeFebvre) Newsgroups: sci.space.shuttle Subject: Re: Soviet and American Shuttles Message-ID: <2008@kalliope.rice.edu> Date: 15 Oct 88 22:25:03 GMT References: <1574@nunki.usc.edu> <3020@jpl-devvax.JPL.NASA.GOV> <1703@eos.UUCP> Sender: usenet@rice.edu Reply-To: phil@Rice.edu (William LeFebvre) Distribution: sci.space.shuttle,sci.space Organization: Rice University, Houston Lines: 22 In article <1703@eos.UUCP> steve@eos.UUCP (Steve Philipson) writes: >In article <3020@jpl-devvax.JPL.NASA.GOV> david@beowulf.JPL.NASA.GOV (David Smyth) writes: >>2) How fast do you thin the shuttle needs to go to get enough lift to >>go UP? Right now, the shuttle decends at about 100 feet per second >>throughout the re-entry: The thing does NOT fly, it drops like a brick. >>The wings just increase the manoeverability. > > I've never seen a brick flare and land softly. It may require a >large amount of thrust to make it sustain altitude or climb, but it >doesn't have to be flying extremely fast. Quite right. I watched this last landing very closely, and decided that the shuttle can glide very nicely when it wants to. After the flare and on final approach, it looks like a regular plane coming in for a landing. I believe that it "drops like a brick" not for aerodynamic reasons, but because that's the only way to get the shuttle down to the right altitude in a reasonable amount of time. William LeFebvre Department of Computer Science Rice University