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Thanks Kirk for the very impressive video, :worthy:

whereby especially the first sequences




remind me of my very intensive work with lots of crazy details eek.gif while scratching the SSWS pipes, a longer time ago ... up040577.gif&key=37940a736477cc130c2717d



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I remember a miniature launch pad like that. Some very talented chap was building one a long, long time ago - but then became distracted with a launch tower.

Oh wait...




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Right Kirk, I can still remember that too, smiley215.gif this must have been then a total crazy guy, right? 00000016.gif

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Hello everybody,


well, the same (art)break as every year, and the longer it lasts, the harder it is to get back in ... rolleyes.gif 


But nevertheless it should go on, and that's why: Go right ahead! andiearbeit.gif


For the masking of the connection areas of the ET Attachments before the Flour process, one interface is still missing, and that is the one between the ET Vertical Struts and the SRB Aft Attach Struts


Source: forum.nasaspaceflight.com (Jester)


which were unfortunately not taken into account in both the Airfix Kit and Newware Kit, which results in this gap, which of course should not exist there.  nono.gif 




Via the local cable connections running in the Cable tray and through the Upper Strut, u.a. the ignition of the SRB Separation Motors took place, which initiated the separation from the ET after the burnout of the Boosters. speak_cool.gif


As one can see from the following image, the round cladding of the Upper Strut cannot be overlooked, 


Source: forum.nasaspaceflight.com (woods170)


and is not nearly just a puny thing like at the dainty Airfix Strut, smiley_worship.gif




which can also be seen in this photo by Steve Patlan


Source: live.staticflickr.com (Steve Patlan)


who was close to the action at the time and has great photos in his albums.  up045518.gif 


Source: live.staticflickr.com (Steve Patlan)


This comparison inspired me to show these details at the interface in a more real way, whereby I was starting with the cladding of the Upper Strut. But since I had already glued the struts at the right SRB, I've taken the struts of the left SRB and first removed the annoying bobble. cool.gif




Then I've drilled off a Styrene Rod (Ø 3 mm) step by step up to Ø 1,4 mm,




so that a separated sleeve of it could be pushed over the strut. In between there was placed a punched disc (0,25 mm, Ø 3,4 mm), 




which then was glued together with the sleeve on the strut, which already looks more similar to the original strut. cool.gif 






The  same procedure I will now carry out on the right SRB Strut, for what I will carefully separate it off the booster. huh.gif


And now once again to the connecting cable tray between ET and SRB Attach Ring, for what I once again did use this overseeable photo of the ET-32 ( STS-32) by George Gassaway, what I've turned by 90° for better orientation, from which I've also determined the dimensions (in mm) of the individual details. top.gif


Therein one can also see well the green drawn TPS Cladding, which lies in front of the Cable Trays like an oblique ramp and should have a similar protective function like those of the elongated LH2/LO2 PAL Ramps in front of the cable trays in the middle and front tank area. 


Source: georgesrockets.com (George Gassaway)


With these dimensions I have drawn this sketch (1:1),




which I then have put onto the interface to try on, with which I can mark the masking areas on the ET.




The remaining dimensions for scratching the parts I've determined from this side view,


Source: forum.nasaspaceflight.com (woods170)


wherewith again a further small step was done.  up040577.gif

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Hello friends,


in silent memory of January 28, 1986 I would like to commemorate the tragic 25th Space shuttle mission and the tenth and last flight of the Space shuttle Challenger, which broke 73 seconds after launch ... 


Source: wikipedia.org


It was the first launch of a space shuttle from the new Launch pad Pad 39B, in the construction of which my friend James MacLaren was instrumental, to what all employees had been proudly looking forward to. All the greater were their disappointment and sadness that the first launch from the new pad ended in such a tragic way.


It was the worst accident in US space history by that time, in which all seven astronauts were killed, 



Front row (L-R): Michael Smith, Francis Scobee, Ronald McNair;
Back row (L-R): Ellison Onizuka, Christa McAuliffe, Gregory Jarvis, Judith Resnik
Source: wikipedia.org


but seven new stars were born!

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Hello everybody,


don't panic friends, analintruder.gif after a somewhat longer break it should finally go on. cool.gif


In the meantime, the second SRB Upper Strut (right) has also been modified by the thicker sleeve, but the strut, unfortunately, could not be removed from the bonding without being damaged and therefore has to be lengthened somewhat, so that the distance of the booster from the ET is correct. rolleyes.gif




For the test fitting onto the ET, I was able to use it like this for the time being. Then I've marked the contours for the Longerons and Cable Trays, incl. TPS cladding,






and then taped them off with masking tape so that I can expose the adhesive surfaces again after the flouring and priming/painting. up045518.gif






Then I took a closer look at and measured the SRB front parts (SRB Forward Skirts) from the Newware Kit, the surface of which is surprisingly finely structured and therefore looks much more real than that smooth from Airfix




whereby they come pretty close to the original.  speak_cool.gif


Source: NASA


Since the Newware Kit is specially designed for the Revell Shuttle Stack, the question arose whether the SRB Forward Skirts would also match the Airfix-SRBs. smiley215.gif But since the diameters of the SRBs of both kits are surprisingly the same (Ø 26 mm), I was relieved and have carefully cut off the front part with the fine saw. huh.gif






And lo and behold, the Newware Forward Skirt makes a good match with the Airfix booster yahoo.gif




Now I just have to drill the hole for the brass support rod in the right place and take care that the drill does not run away in the Resin part. smiley232.gif




So I'm still trying to figure out how to do it best ... are there any thoughts?   hmmm.gif


We will see ... up040577.gif

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Good to see you back at work, Manfred.


I have no "tried and tested" suggestions for the drilling, but it seems to me that you need to be able to mount the resin in a jig so that it won't move and then drill the hole using a vertical drill stand. Perhaps 2mm styrene sheet or even foam board would do for a jig? A cut out when the pipe duct fits would stop if from rotating. I'm sure your eventual solution will be more elegant than this.

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Thanks Kirk, bow.gif


to hold the resin Forward Skirt in a jig or a vice, so that it won't move, is the way to go. top.gif The problem is only the vertical guidance of the drill by hand, without a  suitable drill stand. hmmm.gif





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Hello everybody,


I actually don't need to drill 25 mm deep holes, because 5 - 10 mm should also be enough if I shorten the  brass support rod on both sides accordingly. Therewith the boosters' forward attachment point should be fixed sufficiently and, together with the rear SRB Aft Attach Struts, ensure a stable three-point support of the boosters. top.gif


This is this circled wedge-shaped Fastening part (SRB/ET Forward Attach Fitting) between the ET and the SRB, in each of which is a Separation Bolt, which is blown up together with similar bolts in the rear SRB struts when the SRBs are separated from the ET and thus releases the booster.  speak_cool.gif


Source: NASA


Source: Marshall Space Flight Center, Space Transportation System HEAR No. TX-116


As one can see in this image, this fastening wedge is in place on the Airfix booster, but it is missing on the Newware SRB Forward Skirt, what in turn proves that apparently no kit is perfect. rolleyes.gif




Therefore I will scratch this wedge-shaped part and glue it to the attachment point behind the drilled hole for the support rod, with which the attached booster will be glued onto the ET, which should ensure a sufficient hold. top2.gif


And these 5 - 10 mm deep drilled holes should be carried out by hand with the appropriate caution and care, I hope so. up040577.gif

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