From: skunk-works-digest-owner@harbor.ecn.purdue.edu To: skunk-works-digest@harbor.ecn.purdue.edu Subject: Skunk Works Digest V4 #85 Reply-To: skunk-works-digest@harbor.ecn.purdue.edu Errors-To: skunk-works-digest-owner@harbor.ecn.purdue.edu Precedence: bulk Skunk Works Digest Thursday, 9 December 1993 Volume 04 : Number 085 In this issue: Re: airships Hypersonic Airbreathing on Display See the end of the digest for information on subscribing to the skunk-works or skunk-works-digest mailing lists and on how to retrieve back issues. ---------------------------------------------------------------------- From: John Erling Blad Date: Wed, 8 Dec 1993 11:07:45 +0100 Subject: Re: airships >(this is probably getting about too far from charter...) I agree >If the lift gas is allowed to >expand due to increased altitude/decreased pressure there is an increase >in lift. This is (somewhat counteracted by a _decrease_ due to the >decreases density of the exterior air. If you neglect the actual volum, isnt the lift as a function of the weight of gas constant with the altitude? John ------------------------------ From: dougt@u011.oh.vp.com (Doug Tiffany) Date: Wed, 8 Dec 93 5:14:35 EST Subject: Hypersonic Airbreathing on Display > > Those of you close to the AF Museum in Dayton Ohio are lucky indeed, for yet > another reason! > > Evidently already on display, or very soon to be put on display, until some > time in February, is a display of work done on Aerospaceplanes and high > Mach airbreathing propulsion. I'm told this display shows the first scramjet > engine to achieve supersonic combustion as well as other exhibits that show > the work in this field that has been going on over the past 30+ years. I've > also been told that the things in this exhibit have never been on display > before. > > If I recall precisely, the exhibit is roughly 20ft X 40ft in size and shows > a lot of hardware and models of actual vehicle shapes tested at varying > Mach nos. up to Mach 20 (a shock tunnel I would expect?). > > If anyone has already seen this or plans on going to the AF Museum soon, > please check out this exhibit and let me know how good it is. If it's good, > and from what I've heard so far it certainly sounds good, my suspicion is > that it I need to fly there to see it. > > Larry > I was at the AF museum earlier this year and hadn't planned on going back for a while. But if this display is only temporary, I'll be sure to go to see it. I only live about 80+- miles north of there. See if you can pinpoint when it will be there for me. - -- ------==========**********==========------ Douglas J. Tiffany u011.oh.vp.com Varco-Pruden Buildings 1202 Industrial Drive Van Wert, Ohio 45891 (419)238-9533 Fax: (419)238-2267 "Even a fish stays out of trouble when he keeps his mouth shut!" ------------------------------ End of Skunk Works Digest V4 #85 ******************************** To subscribe to skunk-works-digest, send the command: subscribe skunk-works-digest in the body of a message to "listserv@harbor.ecn.purdue.edu". If you want to subscribe something other than the account the mail is coming from, such as a local redistribution list, then append that address to the "subscribe" command; for example, to subscribe "local-skunk-works": subscribe skunk-works-digest local-skunk-works@your.domain.net To unsubscribe, send mail to the same address, with the command: unsubscribe skunk-works-digest in the body. Administrative requests, problems, and other non-list mail can be sent to either "skunk-works-digest-owner@harbor.ecn.purdue.edu" or, if you don't like to type a lot, "prm@ecn.purdue.edu". A non-digest (direct mail) version of this list is also available; to subscribe to that instead, replace all instances of "skunk-works-digest" in the commands above with "skunk-works". Back issues are available for anonymous FTP from harbor.ecn.purdue.edu, in /pub/skunk-works/digest/vNN.nMMM (where "NN" is the volume number, and "MMM" is the issue number).