#11
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Don’t hold your breath that site has been out there for years. And it ironically says the previous venture failed because there is no market. Be aware the there is an Aerotech C3 and D2 in 18mm with a 10 second burn time so there are alternatives to jet-X vaporware. |
#12
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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 |
#13
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"Tap contact" jet vanes (whose flat sides would intermittently contact the exhaust plume--Goddard's later rockets used these), or "jet tabs" (they're on shafts parallel to the motor axis, which intermittently rotate, bringing the jet tabs into contact with the exhaust plume--BAC planned to use these on the Skylark sounding rocket), would have even briefer exposure to the jet motor's exhaust plume. Jetavators (gimbal-mounted, rotating circumferential rings--a jetavator is a short length of an open cylinder, surrounding a rocket nozzle) could also be used, for example, in a scale model of a Polaris missile. The Polaris first stage had four fixed nozzles, each with a jetavator surrounding it. As well: A jet model plane equipped with a micro R/C system could use servo-actuated jet vanes or jet tabs to steer the model during its period of powered flight. One lightweight possibility that I'd thought of could be used in Vintage Model Company's reproduction Veron Fouga Cyclone jet sailplane kit (see: https://www.vintagemodelcompany.com/fouga-cyclone.html ). It could utilize jet vanes or a movable motor mount tube to provide thrust vector control during powered flight. (Axion makes two-channel motorglider models that work similarly; they use rudder control for left-right turning, while a throttle-able, fuselage top-mounted electric motor/pusher propeller [with a slightly raised thrust line] provides pitch control.)
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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 |
#14
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Depending on how much those long-burn Aerotech C3 and D2 18 mm motors cost, I'd be perfectly happy using them. (After World War II, especially in England, many large Jetex-type target aircraft were available as military surplus. It wasn't terribly different from the Aerotech Phoenix R/C rocket glider. The target had, if memory serves, swept wings and tail surfaces, a pod-and-boom fuselage [the boom was a dowel or an arrow shaft, I think], with a circular opening in the rear of the pod fuselage, into which a large Jetex-type motor had been fitted.)
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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 |
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#16
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Sam's Models, from whom I bought Rapier motors years ago, carries Derek Knight's tiny (32 mm, 24 mm, and 18 mm diameter) EDF--electric ducted fan--units (see: http://www.samsmodels.com/electric-flight-ducted-fan ). One model rocket-related application of these that comes to mind is a small-scale model of the Harpoon cruise missile, using an 18 mm EDF in the missile and a 13 mm or 18 mm model rocket motor in the booster, which could be parachute- or streamer-recovered (as could the EDF-powered missile as well).
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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 Last edited by blackshire : 08-22-2019 at 12:25 PM. |
#17
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Also, Roger Simmonds' Jetex.org website (see: https://www.jetex.org/ ) sells several new-design Jetex/Rapier model kits, which could also use the Jet-X J-1 motor (they also sell a hand-held electric igniter [which is a veterinary device]). His site also contains numerous old and new articles, images, and model plans.
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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 |
#18
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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 |
#19
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ooooh poor ol' hoss !
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To please everybody is impossible..to piss most people off is a piece of cake......,,.I like cake |
#20
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Gelding of horses is done with a crimping device that is applied to the spermatic cord (as well as removing the testicles), which is not always done--even today--under anesthesia, instead using only sedation and a lip twitch for restraint, with the horse standing. (Only the English-speaking world seems to have a "stallion behavior problem." In France, Germany, and other countries, stallions aren't kept in isolation except when bred; they are ridden and driven, and they also pull farm implements [including with geldings and mares, sometimes even when the latter are in season], instead of living alone--it's no wonder that those secluded stallions are so poorly socialized. People in the English-speaking world, assuming that "stallions have one-track minds," keep them in a manner which ensures that they will become that way.)
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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 |
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