#21
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Black Shire--Draft horse in human form, model rocketeer, occasional mystic, and writer, see: http://www.lulu.com/content/paperba...an-form/8075185 http://www.lulu.com/product/cd/what...of-2%29/6122050 http://www.lulu.com/product/cd/what...of-2%29/6126511 All of my book proceeds go to the Northcote Heavy Horse Centre www.northcotehorses.com. NAR #54895 SR |
#22
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I guess it's possible the 69 Centuri kit had balsa fins, but the 70 model definitely had oversized plastic fins. I have a feeling the 69 did too. If you notice, the 1/100 Saturn 1B is described as "pre-shaped" fins also. I don't recall it ever having balsa fins.
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I love sanding. |
#23
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I had always thought that Centuri's Saturn IB had plastic fins too, and their use of the term "pre-shaped fins" in their Saturn V kit description--as well as in their Saturn IB's kit description--does indeed suggest that their Saturn IB also had plastic fins from the start. (In those days, plastic parts in model rockets were still something of a novelty [even plastic nose cones in 3FNC and 4FNC kits were touted as special features back then], so I can see how they could have used "pre-shaped fins" to denote detailed, high-fidelity molded scale--or very nearly so, in the case of their Saturn V kit--plastic fins.)
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Black Shire--Draft horse in human form, model rocketeer, occasional mystic, and writer, see: http://www.lulu.com/content/paperba...an-form/8075185 http://www.lulu.com/product/cd/what...of-2%29/6122050 http://www.lulu.com/product/cd/what...of-2%29/6126511 All of my book proceeds go to the Northcote Heavy Horse Centre www.northcotehorses.com. NAR #54895 SR |
#24
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Pretty sure both the Centuri Saturn V and Saturn 1b always had plastic, two-piece vacu-formed fins. Each fin consisted of two vacu-formed halves that were joined with cement, allowed to thoroughly dry, then you trimmed away the excess plastic around the outer edge. I've never seen a set of instructions for either kit that had balsa or any other material for the Saturn fins. All instruction sets I've ever seen or have (and I have a number of vintage kits of each Centuri Saturn) show the vacu-formed fin halves. Matter of fact, I have a vintage Saturn 1b about ready for paint now. That fin can, with eight fins built as described above, was pretty tedious, but they turn out pretty nice. Takes work though, no doubt. Earl
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Earl L. Cagle, Jr. NAR# 29523 TRA# 962 SAM# 73 Owner/Producer Point 39 Productions Rocket-Brained Since 1970 Last edited by Earl : 10-03-2016 at 05:07 PM. |
#25
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Black Shire--Draft horse in human form, model rocketeer, occasional mystic, and writer, see: http://www.lulu.com/content/paperba...an-form/8075185 http://www.lulu.com/product/cd/what...of-2%29/6122050 http://www.lulu.com/product/cd/what...of-2%29/6126511 All of my book proceeds go to the Northcote Heavy Horse Centre www.northcotehorses.com. NAR #54895 SR |
#26
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Just a minor correction. Cox re-issued several of their original RTF model rocket models between 1989-1991. Estes did not acquire Cox until the mid-1990s at which point the rockets were no longer part of the active product line. Only 1000 of the Cox Saturn Vs were produced (Still with the wrong interstage paint pattern). I posted some history about Cox over on TRF many years ago. I believe you can search and still find my thread.
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Bob S.A.M. # 0014 |
#27
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Black Shire--Draft horse in human form, model rocketeer, occasional mystic, and writer, see: http://www.lulu.com/content/paperba...an-form/8075185 http://www.lulu.com/product/cd/what...of-2%29/6122050 http://www.lulu.com/product/cd/what...of-2%29/6126511 All of my book proceeds go to the Northcote Heavy Horse Centre www.northcotehorses.com. NAR #54895 SR |
#28
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Yes, they were vacu-formed with sheet styrene, left half, right half. Same as the fins for the Estes Maxi-brute kits. Thin styrene, careful trimming, sanding. Back in the day, good old Testor's cement that contained stuff the People's Republik of Kalifornia forbids. Today it's Tenax-7R, Pro-Weld, chlorinated brake cleaner, or equivalent.
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I love sanding. |
#29
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Black Shire--Draft horse in human form, model rocketeer, occasional mystic, and writer, see: http://www.lulu.com/content/paperba...an-form/8075185 http://www.lulu.com/product/cd/what...of-2%29/6122050 http://www.lulu.com/product/cd/what...of-2%29/6126511 All of my book proceeds go to the Northcote Heavy Horse Centre www.northcotehorses.com. NAR #54895 SR |
#30
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Saturn V Instruction Update
I know you guys are smart enough to figure this out when building the Saturn V but we supplied the shorter 24mm D size yellow spacer tube instead of the longer 24mm E size spacer tube. This tube is used to place the engine block in the correct location. We will correct this in future pack outs of the kit.
John Boren |
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