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I wonder if the AVI Sounder (called the Delta-Vee Sounder in the 1973 AVI catalog: http://www.ninfinger.org/rockets/no...a/73avicat.html ) and the U.S.S. Eagle kits might have used Estes BT-60 (1.637" O.D.) or Centuri #16 Series (1.640" O.D.) tubing? The Model Rocketeer advertisement and the AVI catalog both gave its diameter as just 1.6" (oddly, all of the other kits listed in the AVI 1973 catalog--the same ones as were in the ad--had their precise decimal inch and millimeter diameters listed, while in the Model Rocketeer ad, their diameters were all rounded off. But regardless, it's wonderful to see an actual photograph of all of them! Also: The two-stage Space Angel definitely used the 15 mm minimum-diameter Miniroc body tubes, and also the 5:1 tangent ogive nose cone that was used in the MPC/AVI Taurus-1, Super Star, Astrobee D, and Delta Katt kits. The Mini-Hawk is easy to clone, using a 6" (if memory serves) length of Quest 20 mm tubing, and the old MPC-type Tomahawk plastic fin unit and PNC-20 nose cone (Quest used to make these; they now make a slightly different PNC-20, and a Tomahawk-like, slide-on fin unit, which could be used to make a "near-clone" Mini-Hawk [although the old MPC/AVI parts could also be 3D printed]). The Nike-Tomahawk could be built using either a stage coupler/center tube/balsa internal gussets/card stock shroud scale interstage, or a 3D printed one. It could be flown either "stock" (single stage), or it could be gap-staged, with streamer or parachute recovery of the Nike booster (or the model could even use electronic second stage ignition).
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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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