From: skunk-works-digest-owner@harbor.ecn.purdue.edu To: skunk-works-digest@harbor.ecn.purdue.edu Subject: Skunk Works Digest V3 #42 Reply-To: skunk-works-digest@harbor.ecn.purdue.edu Errors-To: skunk-works-digest-owner@harbor.ecn.purdue.edu Precedence: bulk Skunk Works Digest Saturday, 15 May 1993 Volume 03 : Number 042 In this issue: (I) Waveriders in P/M Re: (I) Waveriders in P/M 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: George Allegrezza 14-May-1993 1332 Date: Fri, 14 May 93 13:47:00 EDT Subject: (I) Waveriders in P/M The June 1993 issue of Popular Mechanics has a small blurb about a NASA Langley research effort on a conceptual Mach 4 waverider, in the Tech Update section. They're doing wind tunnel testing on a waverider shape to which they've added realistic control surfaces, inlets, and nozzles. There isn't much info that's new to regular readers of this list, but once again the artwork is interesting, including an exploded rendering of the wind tunnel model. The shape is sort of generic Langley, ogive in plan. They have two variants, one with straight wingtips and one with cranked tips. You can spot the issue of the mag. by looking for the gee-whiz VTOL airliner on the cover. They trot this stuff out every once in a while. We're about due for another fan-in-wing personal commuter cover, to be followed by Secret Spy Fotos Of The '98 Corvette. George George Allegrezza | "I don't deserve to be treated like this. I'm Digital Equipment Corporation | human, ain't I?" -- Hope Littleton MA USA | "Well, there've been some complaints." allegrezza@tnpubs.enet.dec.com | -- Crosby ------------------------------ From: Jeffrey D. Flamm Date: Fri, 14 May 93 17:33:54 EDT Subject: Re: (I) Waveriders in P/M > The June 1993 issue of Popular Mechanics has a small blurb about a NASA Langley > research effort on a conceptual Mach 4 waverider, in the Tech Update section. > They're doing wind tunnel testing on a waverider shape to which they've added > realistic control surfaces, inlets, and nozzles. > > There isn't much info that's new to regular readers of this list, but once again > the artwork is interesting, including an exploded rendering of the wind tunnel > model. The shape is sort of generic Langley, ogive in plan. They have two > variants, one with straight wingtips and one with cranked tips. > > You can spot the issue of the mag. by looking for the gee-whiz VTOL airliner > on the cover. They trot this stuff out every once in a while. We're about > due for another fan-in-wing personal commuter cover, to be followed by > Secret Spy Fotos Of The '98 Corvette. > > George > > > George Allegrezza | "I don't deserve to be treated like this. I'm > Digital Equipment Corporation | human, ain't I?" -- Hope > Littleton MA USA | "Well, there've been some complaints." > allegrezza@tnpubs.enet.dec.com | -- Crosby > > While I am not involved in the waverider program several of my co-workers are. I will tell you what little I know about the current test. If there is any further interest, I will see if I can cross paths with the test engineer and get some more info (he is working third shift). This model is currently in the middle of a three week force and moment test program here in the high speed test section of the Langley Unitary Plan Wind Tunnel (UPWT). The exploded view from the PM blurb is an accurate representation of the model. The inset photograph is from an earlier waverider test in the UPWT mentioned in the Jan. 21, 1991 issue of AW&ST. The first test was conducted to validate the University of Maryland code used to design the waverider models. The model that is currently being tested has added control surfaces, cockpit canopy, and an engine inlet to simulate an actual aircraft configuration (previous test was only a generic waverider shape). The model is a 0.016 scale Mach 4 design. The parametrics include: 2 canopies - one faceted (similar to f-117), the other rounded Cranked wing tips or straight wing tips Ailerons deflected to +20!,-20!,or 0! elevon deflected to +20!,-20!,or 0! engine inlet on/off vertical tail on/off Mach numbers: 2.3,3.5,4.0,4.2,4.63 Jeffrey Flamm j.d.flamm@larc.nasa.gov M/S 413 Supersonic Hypersonic Aerodynamics Branch NASA Langley Research Center Hampton, VA 23681 ------------------------------ End of Skunk Works Digest V3 #42 ******************************** 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". 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