"New" HAD rocket! (links)
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Hello All,
Here, on/from the Australian Rocketry forum (posted by member "Barinv," see: http://forum.ausrocketry.com/downlo...=9055&mode=view *and* attached below) is a photograph of a HAD (High Altitude Density) sounding rocket round that is slightly different--both physically, and in terms of its decor scheme--from the HAD round that Peter Alway documented in his book "Rockets of the World," and: The CarnarvonSpace website (see: http://www.carnarvonspace.com/wiki/...ket_Experiments ) has a scan--with attribution to him--of Peter's drawing of the HAD (see: http://www.carnarvonspace.com/wiki/.../HAD-rocket.jpg ); several HAD rounds were fired at Carnarvon, and one came straight back down, as is described on the site (and in Peter's book)... The slightly different-looking (and differently-painted) HAD round that "Barinv" posted a picture of on the Australian Rocketry forum was one of the Carnarvon-launched, 2-meter balloon-deploying HAD rounds (that same picture that "Barinv" posted is included in the Carnarvon website's history article). Also: Most HAD rounds released 2-meter diameter aluminized polyester film balloons which inflated immediately after deployment, about 120 kilometers above the Earth (see: http://homepage.powerup.com.au/~woomera/had.htm ), and tracking them by radar generated the desired upper atmospheric data. (The HAD model rocket in the picture on that website was built for and mailed to the Woomera sounding rockets group in the late 1960s or the early 1970s, and this event was chronicled in a nice article in the NAR's magazine at that time [I've seen it online]; today this model is on display in a case in the Woomera museum.) Now: Instead of having a cylindrical "tail can" around the Gosling first stage rocket motor's nozzle (with the fins affixed to the tail can, as Peter Alway's selected HAD round--which the Woomera museum model also depicts--did), this Carnarvon-launched HAD round's first stage fins were affixed *directly* to the nozzle. (This design characteristic appeared among the later Australian sounding rockets, particularly the smaller ones; it is well-shown here, in a picture of the Kookaburra rocket: http://forum.ausrocketry.com/downlo...=9048&mode=view [and also attached below]). The attached pictures below (there are others in the thread that is linked-to immediately above) are--from left to right--the (Carnarvon-launched) HAD, the Kookaburra, the Aero-High, and the Corella (these last three vehicles were launched at Woomera), and: Here is the opening page of the Australian Rocketry forum that these postings are from (they’re in the “Rocketry Control Room” section, along with many other interesting threads): https://forum.ausrocketry.com/index...c31eabb7310e70c . In that section of the Australian Rocketry forum (as well as here on YORF), I have posted scale data and historical information on Australian sounding rockets, which are among the more obscure suborbital space vehicles. I hope this material will be helpful. |
I would love more pictures of the Aero-High, that is the first color photograph I have seen showing the red on top of the first stage. I have black and whites of that round that distinctly show that part being a lighter color then the black.
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I do have a set of blue prints for the Aero-High, that I got from WRE and some more detailed blueprints (poor quality copies) that I got from a friend. He gave them to me because I built several different size scale models of the Aero-High and I was entertaining the idea of building one for S5 at the world championship, before they changed the rules.
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Scans available ??? |
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I've got some Aero-Hi prints here somewhere too. Need to go dig them out. I do recall that it included drawings of the launcher.
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The HAD did fly from a "counter-weighted" launcher at Woomera, as well as from a "flat box beam" launcher there, as shown in Peter Morton's "Fire Across the Desert" (a photograph of the HAD round depicted in "Rockets of the World" shows it on the "counter-weighted" launcher, which I think is [but may not be] the same one that the Aero-High flew from). The HAD round shown in the picture above (in the initial posting of this thread) is one of the Carnarvon-launched vehicles (Peter Alway described the Carnarvon campaigns in "Rockets of the World), which is on a portable launcher. |
Here are the Aero-High drawings I got from WRE back in the '70's. It only took about two hours of digging through old boxes to turn them up.
Rather disappointing how the scans came out at 600 dpi. Details are poorly readable even on my C-size prints. I guess I need to sit down and create a proper CAD drawing, especially the launcher. They also managed to scan most of them upside-down - I'll have to pdf edit the rotation somewhere. EDIT: Got them rotated. I guess I need to do some more digging because I know I had an 8x12 photo too, but I haven't seen it yet. I'd love to be able to add stuff to this Dropbox folder. I guess I don't know how to add general access to it, so if you can email me anything or post it somewhere I'll add it. garyacrowellsr@gmail.com Aero High and Launcher |
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Files from the non-working Dropbox link . . .
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I appreciate all the info you post here for my members, Dave! |
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Thank you for your kind words, Scott ! Rocketry, ever since I started in the late 1960's has always been a "Brotherhood" to me ( not excluding any female Rocketeers ) . . . I often the enjoy the camaraderie at least as much as flying . . . I believe that data is meant to be shared openly and that help should be given, whenever it is asked for, or becomes apparent that it is needed . . . I fully intend to continue doing so, whenever I can . . . There are those who do not share my sentiments and, to them, I say "If you don't like my posts, then please don't read them !" Dave F. |
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Here they are, again . . . "Cleaned up", a little. Dave F. |
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A couple of pics . . . Good "rivet detail" in the first one !
Dave F. |
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The Skylark (see: http://www.google.com/search?ei=Res...7.L LAaK57g7FA ) was to Great Britain what the Aerobee (and now the Canadian Black Brant series--the 17.25" [438 mm] Black Brant and Nihka motors were patterned after the various Skylark motors of the same diameter) was to us. Hundreds of Skylarks were flown, from sites all over the world, and they also carried payloads for other countries; even NASA used at least four Skylark vehicles launched from Woomera, carrying ultraviolet astronomy payloads to map the southern sky, and: The basic, single-stage Skylark used a Raven motor. The more popular boosted version used a Raven motor mounted atop a Cuckoo motor (which was fitted with three small fins, and had an Aerobee-like open interstage section with a blast cone), which was later replaced by a *finless* Goldfinch--and still later, a Goldfinch II--motor, in true CHAD staging style. :-) By the time the Goldfinch motors arrived, the payloads had become so long and heavy that the Skylark's three fins were sufficient to stabilize the entire "stack" (the TEXUS and MASER programs at Esrange flew many of them; much about them is online)--plus: Optional Imp spin motors reduced the impact dispersion, which was important for ranges (especially land ranges, such as Esrange in Sweden) which have small downrange impact areas. (Incidentally, the Brazilian VSB-30 two-stage sounding rocket [see: http://www.google.com/search?ei=X-Y...i10.O8nd6Duu5hE ] was designed as a "drop-in replacement" for the Skylark, which last flew in 2005; the VSB-30 has similar performance, and all of the Skylark payload modules--many of them are used to this day--fit its interfaces.) The most powerful Skylark variant was the Skylark 12, which used a Raven XI motor atop a Goldfinch II motor, with a (finless and spin-stabilized, like the Black Brant's optional Nihka final stage) Cuckoo IV third stage atop the Raven XI motor (see: http://www.google.com/search?ei=dus...131.rZTENH3WE70 ). In its latter years, these three "standard" Skylarks (earlier versions were variously numbered) were the Skylark 5 (Raven XI motor; single-stage), Skylark 7 (Goldfinch II-boosted Raven XI; two-stage), and Skylark 12 (Goldfinch II/Raven XI/Cuckoo IV; three-stage). Below are links to information--including ordering information--on the book, "Britain's First Space Rocket: The Story of the Skylark," by Robin H. Brand: http://www.new-forest-electronics.c...kylark-book.htm Order from: http://www.ypdbooks.com/science-and...k-YPD01129.html All sources: http://www.google.com/search?source.....0.jTHtFwuvOqU I hope this information will be helpful. |
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Instead of the single Gosling first stage motor of the HAD, the HAT used two smaller, side-by-side Demon rocket motors as its first stage (much as the Aeolus used a Long Tom second stage [a Mayfly motor] atop a less powerful cluster of seven LAPSTAR motors, all mounted inside a short enclosing tubular airframe with a short conical interstage adapter and four rectangular fins), and: The HAT's first stage had four rather long-span clipped delta fins (two on each Demon motor), and because of their side-by-side attachment (with a rather "flat" [matching the motors' diameter in depth, and twice their combined diameters in width] conical interstage adapter on the front end), the fins formed a sideways "X" when viewed from the top or bottom. A home-made "two-to-one" ducting (and vented) gap-staging adapter (like the "one-to-three" ducting staging manifold adapter that John Boren developed for Estes' MIRV kit: https://estesrockets.com/wp-content...002134_MIRV.pdf ) would enable a HAT scale model to ignite its second stage with the hot particles from ^both^ booster motors. Also: This would--if the model was light enough to climb sufficiently high and not arc over too much, if one of the two first stage motors failed to ignite at launch--offer greater overall reliability. If both first stage motors ignited, second stage ignition would be almost 100% certain to occur, and if only one first stage motor ignited, second stage ignition would still be nearly as assured as it would be in the first case. *OR*, one of the two first stage Demon motor tubes could be vented to ignite the second stage, while the other one could have a rear-ejecting motor mount on a shock cord, to enable parachute of streamer recovery of the first stage (it would use a short-delay motor of the same total impulse category as the "dash-zero" booster motor in the other first stage Demon motor tube, such as a B6-2 and a B6-0). |
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