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Vashon Sandpiper parts?
Hello Doctor (and all readers herein),
I was looking at the Vashon (later Estes) Sandpiper kit (see: http://plans.rocketshoppe.com/vasho...111/Vas3111.pdf [scanned kit plans] and http://www.ninfinger.org/rockets/ca...74/74est44.html [Estes 1974 catalog listing]), and the plans indicate—in a supplemental hand-drawn diagram—that its 1.00” diameter nose cone was/is 3.00” long. Is the length figure correct? As shown in the photograph in the Vashon kit instructions (and in the Estes catalog illustration), the nose cone looks longer than that. If anyone has cloned it, which nose cone(s) is/are the best match for the nose cone in the original kit? (The Vashon Cold Propellant kits that used the aluminum V-1 and V-2 Freon motors were 1.00” in diameter, so the 0.976” Estes BT-50 tubing would be a close diameter match.) Also: Does anyone produce duplicate decals for the Sandpiper kit? Many thanks in advance to anyone who can help!
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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 |
#2
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Rocket Doctor hasn't been on YORF in over two years and I think that was just to sell off some of his collection.
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I love sanding. |
#3
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Quote:
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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 |
#4
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Quote:
Though the "Ask The Doctor" subforum was probably created for a former very short term Estes employee, it has morphed into a general question type forum that we all help to answer. With all the firepower from Mr. Vern Estes himself, golden age Estes designers like Bill Simon, and the vast knowledge base of many of our illustrious "vintage" members, there is way more knowledge and history being shared on YORF right now than any one Rocket Doctor could imagine.
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I love sanding. |
#5
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Don't know if anybody makes the decals, but there is a very clean scan of the decals here:
http://www.oldrocketplans.com/decals.htm Scroll down, it's the third from the bottom. You can do a decent set of home printed decals from that. |
#6
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Quote:
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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 |
#7
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Blackshire,
If you are looking to clone the Sandpiper (Jayhawk) then it might be easier using the Estes plans rather than the Vashon ones: http://www.oldrocketplans.com/estes/est1389/est1389.htm You can purchase the 3d equivalent of the PNC-50S nose cone here: https://www.shapeways.com/product/F...tionId=42814278 Or you can save some money and go old school by gluing the canards on a balsa cone. The BT-50 tube is 7.75" long and the BT-20 engine tube is 3.5" long (from John Brohm's reference list). You will need to draw up a custom shroud simulating the tail cone. There is a shroud generating program available here (paper cones transitions program): http://www.rocketshoppe.com/tips.htm "Sandpiper" was an Air Force project to develop a hybrid motor for the Jayhawk replacing the liquid hypergolic propellants with a solid fuel propellant and storable liquid oxidizer. Potentially much less problems compared to toxic, volatile hypergolics. Interesting stuff. Anyway, I have this on my build pile as well. |
#8
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The DANGER-factor is what makes hypergolic liquid propellants FUN !
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When in doubt, WHACK the GAS and DITCH the brake !!! Yes, there is such a thing as NORMAL, if you have to ask what is "NORMAL" , you probably aren't ! Failure may not be an OPTION, but it is ALWAYS a POSSIBILITY. ALL systems are GO for MAYHEM, AGITATION, CHAOS, TURMOIL, FIASCOS, AGGRAVATION, INSTIGATION, NUISANCE-ACTION, and HAVOC ! |
#9
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Quote:
Such a model could depict either the Sandpiper or the AQM-37A by having either a single rocket exhaust orifice (Sandpiper) or the AQM-37A's two booster/sustainer rocket exhaust orifices (a removable-for-flight "display plate" would even allow either variant to be depicted). The Sandpiper kit illustrations in the Estes catalogs show it as being a yellowish green, but (guessing here, as I've never seen a color [or even black-and-white] photograph of a full-scale Sandpiper) I imagine the actual Sandpiper vehicles were the same bright orange or reddish-orange color as the AQM-37A vehicles.
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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 |
#10
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Quote:
__________________
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 |
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