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About roma847

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  1. Hello everybody, now I've got started modeling a prototype of the Payload Canister. With the the known main dimensions (LxWxH) I first tried to construct a simple Paper kit (1:160) of the canister on graph paper, for which you need not only the base area (124 mm x 34 mm), but also the exact shape of the front sides and the dimensions of the canister shell. The prerequisite for this was a suitable photo of the front side of the canister, but if possible without perspective distortion, for which I chose this photo of the STS-104, whereby it only depends on the canister. Although this modified transporter in 2001 looked slightly different than it was used during STS-6, the dimensions of the Payload Canisters remained unchanged throughout the shuttle program. Source: mediaarchive.ksc.nasa.gov To determine the dimensions of the canister shell, I first reduced a section of this photo to 1:160 in order to be able to determine the length of the border outline. This shrinked the canister's width from 18' to 34 mm. For doing this I then bent a thin copper wire (Ø 0,25 mm) around the contour of the front side and fixed it, which resulted in a contour's length of 94 mm. And with that I could now draw the paper kit of the canister. This can now be used to produce a prototype of the canister, whereby the Payload Canister for the Diorama is to be scratched out of Styrene as well as the Transporter. Let's wait and see how this stunning transport vehicle will look like ...
  2. Thanks David and Mark for your nice comments. The Payload Canister Transporter is a masterpiece of hi-tech transport technology and an extraordinary vehicle, that shouldn't be missing on my diorama, just a little like the Astrovan.
  3. Hello everybody, and since I now know how big the Payload Canister and its Transporter are, I wanted to get an overview of the proportions right away, and have drawn the side view of the canister into the transporter's photo. And this silhouette I used as a stand-up display for the Astrovan with the astronaut. And this combo doesn't look bad, I think. Of course, the KAMAG logos will later be replaced by the appropriate NASA Worm logos, naturally.
  4. Hello everybody, and here is a small addendum to the Astrovan (1:160), to which of course also Astronauts belong to.
  5. Hello everybody, in order to get usable dimensions for the scratch-building of the Payload Canister Transporter, I had to open up other sources, which took some time. For this I researched the Proceedings of various NASA conferences in which I actually found what I was looking for. Among other things, I came across this old photo of the transporter, which initially caused quite a bit of confusion for me, Source: Space Congress Proceedings 2. - 1980 (17th) A New Era In Technology (W. H. Rock) because one can see that the transporter has 24 twin wheel sets and therefore had not only 24 but a total of 48 wheels. Of course I had to get to the bottom of this and asked my friend James MacLaren about it, who also confirmed it to me, especially since he also wondered about it when he first saw this vehicle. Another open question was whether the transporter only had a driver's cabin on one side, as initially shown in the pictures, or perhaps on both sides, as is also was the case with the Crawler. And he also answered this question right away by saying that the transporter of the time had a cabin both on the front and on the back, although he was actually of the opinion (original sound): In truth, the thing did not have a front side or a back side. Didn't matter which way it was pointed. Driver gets in and "go". Real simple that way. Wherewith this detail was clarified too. The confirmation for this I finally got in a contribution by M. E. Donahue: Payload Transportation at KSC, held at the Space Shuttle Technical Conference (1983). Source: NASA Conference Publication 2342 Part 2 (M. E. Donahue) On it one can also read that the electrical, environmental, fluid and gas, and instrumentation services required by the payload during transportation are supplied by separate Subsystems, which one can see in the drawing above (Figure 3), - the Electrical Power Subsystem (EPS Modules), - the Environmental Control System (ECS Module), - the Instrumentation and Communication Subsystem (I&CS Module) and - the Fluid and Gas Subsystem (F&GS) (F&GS Module). This transporter is a true masterpiece of transport technology. Its elevating flat bed has a height of 1,8 m (6') but can be lowered to 1,6 m (5'-3'') depending on the terrain or raised to 2,1 m (7'±3''). Its 24 twin wheel sets can be steered independently of one another and enable the transporter to move forwards, backwards and sideways or diagonally, or to rotate around its own axis like a merry-go-round. All each have separate brake and stabilization lifting systems, if you will a Jack of all trades device. Because payload handling will require precise movements, the transporter has a "creep mode" that permits it to move as slowly as 0,64 cm/s (0,25 in/s) or 0,023 km/h (0,014 mph). From this drawing I determined the dimensions of the Payload Canister for my scale (1:160), Source: NASA Conference Publication 2342 Part 2 (M. E. Donahue) L = 65' = 124 mm (1:160) x B = 18' = 34 mm (1:160) x H = 18'-7'' = 35 mm (1:160), and in the text one can also find the dimensions of the Transporter, so now I know what's in store for me. L = 65' = 124 mm (1:160) x B = 23' = 44 mm (1:160) x H = 6' = 11,5 mm (1:160) And that's enough for me to scratch-building, since I now know what the side view looked like, as well as the 'front/back side', as in this photo from the STS-6 CD-ROM can be seen here. Source: retrospaceimages.com (STS-6) Now I can think about whether I should start building the Transporter right away or postpone it for the time being ... The wheel sets remind me a lot of the 14 wheel sets of the main landing gears of my Antonov An-225, which is also waiting for me in my cupboard ... Source: flugzeug-lexikon.de (ILA_2010) In terms of structure, they should look similar to these one, only that the Transporter has twin wheel sets. Source: wikimedia.org That's just in order to get attuned a bit.
  6. Hello everybody, unfortunately I've remembered these two original photos from the STS-6 on my Reference CD (J. L. Pickering - retrospaceimages.com) far too late, after chasing other photos for a long time, which one can definitely find on the web, like this very nice photo here from the NASA Media Archive, on which you can also study the details of the transporter very well in the XXL zoom, which you need for scratching, as long as one takes it a little more exactly, like me. Source: mediaarchive.ksc.nasa.gov However, with this you still don't have the main dimensions (LxWxH), which you absolutely need to be able to estimate the size of the transporter and of interesting details, at least as long as you don't have drawings ... But then you also still have to know that this is a picture of the two transporters from the manufacturer, the KAMAG Transporttechnik GmbH in Ulm, which were delivered to NASA in early 2000 as the successors to the 20-year-old Payload Canister Transporter System. Here are two photos of the arrival of the transporters, on which one can already see many important details, Source: mediaarchive.ksc.nasa.gov Source: mediaarchive.ksc.nasa.gov so inter alia, that the transporter has 24 wheels, which makes it clear that I will have something to do when scratching, which, as is well known, excites me all the more. However, one must not be dazzled by these great photos, since it is not yet clear how small or tiny some details in 1:160 might be again, see Astrovan. But since I'm only interested in the 1983 transporter, used at the STS-6, I had to keep looking first and then have found at my friend James MacLaren, what I was looking for, who describes the Payload Canister Transporter of the time on his Website in words and pictures, when he worked from 1980 to 1985 during building the second pad, Launch Pad 39-B. Source: 16streets.com/MacLaren And as you can see, the transporter at that time looked a bit different, Source: 16streets.com/MacLaren so I had to do some more research first.
  7. Seems as Rich can't find the right box with his model stuff ...
  8. Welcome back Rich, we've missed you too long already! Let her rip! Walk it like you talk it!
  9. Hello everybody, just good that the message in my fortune cookie has bolstered me up appropriate courage. The small fans on the roof were a stressful undertaking already, whose gluing around the cardboard cores I still succeeded after a few unsuccessful attempts, after having removed all glue folds. I first glued the cardboard cores to the underside of the roof and let it dry briefly. Then I've laid each fan on the roof, held it from above with the tweezers, and then dabbed the side walls one after the other with a mini droplet of glue at the acupuncture needle and and glued, which was quite cumbersome and also sweaty under the Headset magnifying glass ... Then I worked on the front bumper, for which I used Styrene (0,25 mm), which could have been a bit thinner, but this goes through now! Before gluing the roof on, I glued a Balsa strip at the upper edge of the bodywork to stabilize the walls. And nevertheless I had to treat this fragile paper structure like a raw egg when gluing the roof on. After the glue had dried, the small rear bumper stubs were glued, which of course could not be missing. And after the front headlights and the side mirrors had also been glued, the final inspection could finally take place, which was actually positive and can be seen. And the comparison with the large Van model (1:48) shows in an impressive way how small this Mini Astrovan (1:160) really is, which now also fits with its NASA Worm logo with my STS-6 Diorama. All in all, the construction was an attractive, but at the same time demanding task, a real Challenge, so to speak! And since I've meanwhile found pleasure in the Pad vehicles, I also still got the idea to include the Payload Canister Transporter into my fleet, which can at least partially be seen on this STS-6 reference photo when loading the RSS Payload Bay, a thought that has been going through my head for some time, cause this transporter is an extremely interesting and extraordinary special vehicle ... Source: retrospaceimages.com (STS-6) And on this picture one can see the transporter leaving the Vertical Processing Facility, in which the respective payload is installed into the upright standing Payload Canister. Source: retrospaceimages.com (STS-6) For this sub-project, however, I still have to do some research in order to gain more clarity about the construction and nature of both components.
  10. Hello everybody, it continues with the construction of the small Astrovan for the Diorama, and since it is really tiny, extreme caution was required in all further steps. After I've cut out the roof, I've carefully pre-scored the fold edges and cut out a cardboard insert for stabilization so that I ever had a chance to glue the tricky roof together. For the same reason, I did without the paper wheel mounts and instead glued in small Balsa blocks to make it easier for me to glue the wheels in place. Then I glued the wheel disks to the punched cardboard disks, the edges of which I blackened beforehand. Following I've glued in the roof reinforcement, which was a pretty stressful and tricky action, especially on the side edges, and took some time. Before gluing the wheels in place, I thought about the best and, most importantly, the safest way to realize it, since the unstable and extremely sensitive bodywork should be handled as little as possible. And that's where I still came across my scissor tweezers, with whose help I could grab the Balsa blocks and put the bodywork on its side, which was a great help when carefully gluing the wheels and lastingly protected the bodywork. Before gluing the roof on, I wanted to glue the tiny fans together and then glue them on. But since that could end in a fiasco, I've cut out small cardboard cores around which I could just imagine gluing the bizarre structures ... But maybe I have to do without the adhesive folds and cut them off ... I didn't think it was possible before that the construction of this tiny paper Astrovan would become so complicated, so let's take a look ...
  11. Thanks David! Well, 1:48 is a bit larger than 1:160, so the cent coin must always be with you. Simply stay tuned and healthy, and enjoy!
  12. Hello my friends, but before the clock of the old year finally is running down, I would like to come back to my STS-6-Astrovan (1:160) and take one last look at it for this year. And I have to admit that just alone cutting out the body and especially the wheel cases was a tricky business, which surprised me quite a bit, as well like the folding and gluing of this tiny van compared to the larger model (1:48). I'm already scared of the roof ... And now it is time to thank you again for your interest in my work and to wish everyone a Happy New Year. Cheers!
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