From: skunk-works-digest-owner@harbor.ecn.purdue.edu To: skunk-works-digest@harbor.ecn.purdue.edu Subject: Skunk Works Digest V2 #57 Reply-To: skunk-works-digest@harbor.ecn.purdue.edu Errors-To: skunk-works-digest-owner@harbor.ecn.purdue.edu Precedence: bulk Skunk Works Digest Wednesday, 20 January 1993 Volume 02 : Number 057 In this issue: unsubscribe Re: Blackbird notes Re: Blackbird notes Re: AW&ST Aux power? info sources (was Re: AW&ST) unsubscribe Re: info sources (was Re: AW&ST) AX Mission Requirements Re: info sources (was Re: AW&ST) Re: AX Mission Requirements Re: Aerospace Sciences Meeting Re: AX Mission Requirements F-117 Crash Report 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: Scott Bronson Date: Tue, 19 Jan 93 1:24:30 PST Subject: unsubscribe unsubscribe skunk-works ------------------------------ From: George Allegrezza 19-Jan-1993 0814 Date: Tue, 19 Jan 93 08:16:43 EST Subject: Re: Blackbird notes Dean Adams posted a very interesting summary of Blackbird info. Dean, can you tell us the source of this information? ------------------------------ From: dnadams@nyx.cs.du.edu (Dean Adams) Date: Tue, 19 Jan 93 06:46:23 MST Subject: Re: Blackbird notes >Dean, can you tell us the source of this information? Whoops, sorry... That came from some Lockheed reports. I'm still working on finding more detailed info on some of those subjects. - -dean ------------------------------ From: dnadams@nyx.cs.du.edu (Dean Adams) Date: Tue, 19 Jan 93 06:52:53 MST Subject: Re: AW&ST "Philip R. Moyer" writes: > Aviation Week and Space Technology > >The subscription card in this issue lists the rates as > > 1 year $ 82.00 Don't remind me... :-) >Worth every penny, in my opinion. Yea... although it puts quite a dent in my magazine budget! - -dean ------------------------------ From: "S.K. Whiteman" <@VM.CC.PURDUE.EDU:WHITEMAN@IPFWVM> Date: Tue, 19 Jan 93 08:54:54 EST Subject: Aux power? >dnadams@nyx.cs.du.edu (Dean Adams) writes: >The D (daughter) -21 has a delta wing, an internally-mounted ramjet >engine, and uses 5900 pounds of JP-7 fuel, the same fuel as used by This may sound like a dumb question; but, does anyone know or could speculate on how one would obtain auxiliary power, hydraulic, electric, pneumatic, etc, from a ramjet. The only idea I can come up with is ram or possibly bleed air turbines; maybe total loss battery. To me this is a real puzzle. I don't see any good solution. I can see where total loss battery can work in a missile, but in a piloted aircraft? It would seem to me that ram or bleed air would cost too much in terms of aerodynamic drag or thrust reduction. \ /___________________ Sam \_____/ | IBM Systems Programmer Chicago/ | * | O Indiana University - I | Ft. Wayne | H Purdue University at Fort Wayne L | 1794-1994 | Fort Wayne, Indiana USA ------------------------------ From: "Philip R. Moyer" Date: Tue, 19 Jan 1993 09:10:28 EST Subject: info sources (was Re: AW&ST) > > Aviation Week and Space Technology > > 1 year $ 82.00 >Yea... although it puts quite a dent in my magazine budget! Try this one on for size: Janes Defence Weekly Janes Information Group Sentinel House 163 Brighton Road Coulsdon Surrey CR5 2NH England Telephone: 081-763-1030 Rate: $145.00/year, US Good info, but the price.... Philip R. Moyer ECN Software Staff Engineering Computer Network Voice: 317-494-3648 prm@ecn.purdue.edu Fax: 317-494-6440 ------------------------------ From: "In the light of what you see, what shadows do I cast? 19-Jan-1993 0945" Date: Tue, 19 Jan 93 06:44:09 PST Subject: unsubscribe unsubscribe skunk-works ------------------------------ From: dnadams@nyx.cs.du.edu (Dean Adams) Date: Tue, 19 Jan 93 07:49:48 MST Subject: Re: info sources (was Re: AW&ST) Phil writes: Try this one on for size: Janes Defence Weekly Rate: $145.00/year, US Good info, but the price.... - --- Yep. I have their catalog right here. If that one wasn't bad enough, there is "Jane's Intelligence Review" for $185... I'd love to get 'em all, but AW&ST has to do it for me i'm afraid. Although I do try and pick up various Jane's yearbooks from time to time (but certainly not at anywhere near full price! :) Now if only I could find a free subscription card for JDW... - -dean ------------------------------ From: Date: Tue, 19 Jan 93 10:41:17 -0500 Subject: AX Mission Requirements Can anybody tell me what the Mission specs for the AX are, or where I can find them? I assume that they've been published (at least in abstracted form). Thanks, Matt Mason University of Michigan Aerospace Department (senior) ------------------------------ From: Mary Shafer Date: Tue, 19 Jan 1993 11:57:00 -0500 (EST) Subject: Re: info sources (was Re: AW&ST) I get Jane's Defense Weekly, Interavia, International Defense Review, Flight International, Aviation Week, the Journal of the American Aviation Historical Society, Approach, and a couple of FAA rags through the distribution here. That is, NASA has the subscription and copies circulate. It works pretty well and I get them in a fairly timely manner. I also have free subscriptions to Defense News and Space News. It's too bad they aren't better publications. Mary Mary Shafer DoD #0362 KotFR shafer@ursa-major.spdcc.com ------------------------------ From: Inhale to the Chief. 19-Jan-1993 1524 Date: Tue, 19 Jan 93 15:31:30 EST Subject: Re: AX Mission Requirements There was an article on this in Aviation Week within the last two months. Basically, it's wavering between a pure attack plane :-) with a 700 mi. combat radius and a so-called "strike fighter" with variable geometry wings and more air-to-air capability, but with a reduced combat radius. There are various ideas on stealth content as well. For comparison, note that the GD/McDonnell Douglas A-12 was designed for a 1000 mi. combat radius, but was overweight and thus not close to achieving this figure when canceled. It's got to be hard to define this airplane when IOC is at least 14 years hence, the exact mission isn't well understood, and very little money is in the till for development. George Allegrezza "The fuel gauge shows how much fuel is Digital Equipment Corporation in the tank." Littleton MA USA -- 1993 Mazda RX-7 owner's manual allegrezza@tnpubs.enet.dec.com ------------------------------ From: Inhale to the Chief. 19-Jan-1993 1657 Date: Tue, 19 Jan 93 17:13:38 EST Subject: Re: Aerospace Sciences Meeting Thanks to Mary Shafer and Charles Lind for their feedback on the AIAA meeting. Mary wrote: >I went to the second session (Lewis's). After the last paper Mr. Waverider >himself spoke briefly and it was very interesting. >I'd have to say that the papers in the session I saw might not be real >accessible to the lay person, but I may be underestimating that person. No, you're probably not. But my learning style is to get in so deep I'm totally snowed, then back out until I find a comfort level. Seems to work reasonably well, for work or non-work stuff. And you were wondering why DEC's technical manuals read the way they do :-). So I may get completely swamped by some of this information, but I was warned, wasn't I . . . >I heartily recommend John Anderson's books, every one of them. Thanks. I have one at home that I haven't looked at in detail. >Well, here's one recommendation. Look up the Tuesday morning hypersonics >session (look under Dana, W. in the index) and order the paper with the number >for K. Petersen about the SR-71. The paper wasn't about the SR-71 or by >Kevin, it was by Iliff and Shafer and titled "Comparison of Hypersonic >Flight and Prediction Results". I thought it was a pretty good paper, but >then, I'm Shafer and I'm married to Iliff. X-15, Reentry F, SWERVE, and >Space Shuttle. I'd order Dana's paper, too, if you want a pilot's account >of flying the X-15. Thanks for the tip. For anyone else who is interested, it's AIAA-93-0311. George George Allegrezza "The fuel gauge shows how much fuel is Digital Equipment Corporation in the tank." Littleton MA USA -- 1993 Mazda RX-7 owner's manual allegrezza@tnpubs.enet.dec.com ------------------------------ From: gwh@lurnix.COM Date: Tue, 19 Jan 93 13:56:27 -0800 Subject: Re: AX Mission Requirements Judging from the comments the Navy and contractors have released, the AX spec is evolving quite a bit over time. The A-12 was a deep strike bomber, with minimal Air to Air capability (low T/W, agility ?). The AX cantidates I've seen drawings of (including some pretty detailed drawings) look more like strike fighters; It looks like the Navy is trying to roll its long range fighter and strike missions into one aircraft. As a specific example, the Locheed AX appears to be essentially a swing-wing F-22 with smaller engines and larger internal payload (with better air to air performance than just about all current fighters, even with the smaller engines...). The exact, evolving specifications are not public. I would guess that they're pretty vague, and which aircraft gets selected will depend a lot on things like politics and future funding trends in the late 1990s. - -george william herbert gwh@retro.com gwh@lurnix.com ------------------------------ From: dnadams@nyx.cs.du.edu (Dean Adams) Date: Tue, 19 Jan 93 19:31:45 MST Subject: F-117 Crash Report F-117 CRASH CAUSE (from AW&ST, Jan. 18, 1993, p.13) The U.S. Air Force is changing F-117A maintenance procedures based on information developed by crash investigators. The aircraft crashed shortly after takeoff from Holloman AFB, N.M. (AW&ST Aug. 10, 1992, p24). The crash was likely due to a leaking bleed air duct that caused the hydraulic and flight control systems to malfunction, putting the aircraft in an uncommanded roll. The pilot ejected safely. The accident was aircraft No. 802's first flight after an engine removal and other maintenance, and the duct may not have been properly reinstalled. One of the bleed system post-maintenance, and the duct may not have been properly reinstalled. One of the bleed system post-maintenance tests was not conducted, and the other test may have been inadequate to find the leak. - -dean ------------------------------ End of Skunk Works Digest V2 #57 ******************************** 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).