Xref: utzoo rec.aviation:13048 sci.space.shuttle:2613 Path: utzoo!attcan!uunet!lll-winken!ames!ucsd!sdcsvax!beowulf!velasco From: velasco@beowulf.ucsd.edu (Gabriel Velasco) Newsgroups: rec.aviation,sci.space.shuttle Subject: Re: SR71 to be retired October 1st, rumors regarding SR-71 Summary: corrugated surface Message-ID: <6114@sdcsvax.UCSD.Edu> Date: 18 Mar 89 05:06:59 GMT References: <524@gonzo.UUCP> <1475@petsd.UUCP> <13987@elroy.Jpl.Nasa.Gov> <976@nbife.NBI.COM> <1993NU052179@NDSUVM1> <320@carroll1.UUCP> <278@cbnewsl.ATT.COM> Sender: nobody@sdcsvax.UCSD.Edu Organization: EE/CS Dept. U.C. San Diego Lines: 9 Reply-: velasco@beowlf.UCSD.EDU (Gabriel Velasco) I remember reading , somewhere, that the surface on the SR71 was corrugated because of the brittleness of very thin titanium. It improves it's stiffness just like the corrugations in a cardboard box. I read this a long time ago and I don't remember the source so there's a chance that I am wrong. I am curious now as to how correct this is. Gabriel Velasco UCSD San Diego