Rock-A-Chute Mark II Nose Cone (BT-50)

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This is a copy of the nose cone for the Rock-A-Chute Mark II model rocket that designed by Orville Carlisle in 1957. The picture included here is the actual model and original nose cone which was a legendary Leads Sweete Crayon Sharpener that was converted for rocketry purposes. The original color was red, but was painted white as you see in the pic. It was designed as close to the original as possible based on the photo. This will fit BT-50 airframe tubing which is closest to actual size of the original nose cone. Two files are included - the nose and the end cap which has a 3mm hole to place a screw eye into. 8MAY2020 After posting the initial version of this design I received feedback on it and info on making it more accurate. Thanks to everyone who chimed in. Version 2 is now posted. Note: You can see one of two original models at the Museum of Flight located in Seattle, Washington which has a white nose cone and red body and fins. https://www.museumofflight.org/ The other original model can be seen at the Smithsonian National Air and Space Museum with the red nose cone and yellow body and fins. https://airandspace.si.edu/collection-objects/rocket-flying-model-carlise-mark-ii-rock-a-chute/nasm_A19930773000 More about this rocket at The Rocketry Forum. https://www.rocketryforum.com/threads/bal-rock-rock-a-chute-mark-ii-mrk-ii-gallery.43519/ Ye Olde Rocketry Forum threads. https://www.oldrocketforum.com/showpost.php?p=143521&postcount=64 https://www.oldrocketforum.com/showpost.php?p=79265&postcount=53 https://www.oldrocketforum.com/showpost.php?p=51990&postcount=47 https://www.oldrocketforum.com/showpost.php?p=143629&postcount=70 Video about the beginning of the model rocketry hobby and G. Harry Stine, the man who started it. https://www.youtube.com/watch?v=yXmpnknOOlc Letters written back and forth between Orville Carlisle and G. Harry Stine in PDF format. https://www.soarrocketry.org/genesis-model-rocketry-1957/ G. Harry Stine memoir in PDF format. https://www.soarrocketry.org/g-harry-stine-memoir/ The Quest model rocketry online museum that's still on the Wayback Machine that has the correspondences between Carlisle and Stine, a Stine memoir, Stine's wife's memoir, and pictures of Model Missles Inc. rockets and launches. https://web.archive.org/web/20160305184309/http://www.questaerospace.com/q-museum.htm More about Orville Carlisle from the Wikipedia entry: https://en.wikipedia.org/wiki/Orville_Carlisle By 1954, Orville had developed his first rocket, the Rock-A-Chute Mark I. This model had an airframe of paper with balsa fins mounted on long booms behind the body. Propulsion was achieved by a handmade solid rocket motor burning DuPont fffG black powder propellant. The engine was used once and then discarded. The same technology goes into model rocket engines produced currently. Carlisle's second rocket, the Rock-A-Chute Mark II had a more streamlined design and is still a practical model rocket today. In 1958, he was awarded U.S. Patent 2,841,084 for his design of a "toy rocket". G. Harry Stine, in an article published posthumously in Sport Rocketry magazine, wrote that the U.S. Patent Office should not have awarded Carlisle the patent because the design merely represented a reasonable extension of existing fireworks technology. Prior to the launch of Sputnik in 1957, Carlisle read an article in the February 1957 issue of Popular Mechanics by G. Harry Stine, then an engineer working at White Sands Missile Range. The article remarked on the danger that individuals (mostly teenage boys), inspired by the birth of the Space Age, might experiment with rockets of their own design and end up seriously hurting themselves or even dying. Carlisle realized that he had a solution to this problem with his "Rock-A-Chute" models and engines, a few of which he boxed up and shipped to Stine. Stine saw the potential in Carlisle's invention as a safe hobby, and together they formed the first model rocket company, Model Missiles, Inc., in Denver, Colorado. Carlisle offered two kits from his new company: the Rock-A-Chute Mark II and a scale model of the Aerobee sounding rocket. Soon, the demand for model rocket kits and engines exceeded the production capabilities, and Carlisle sought an external supplier for rocket engines. Vernon Estes, whose family fireworks company was listed first in the Denver phone book, designed a machine capable of producing rocket engines every 5.5 seconds. Unwise business decisions eventually forced Model Missiles, Inc. out of business, and Estes took over production with his own company, Estes Industries. Orville Carlisle became the first member of the National Association of Rocketry (NAR #1), founded in 1957 by G. Harry Stine (NAR #2). Later, he served as a member of the Technical Committee on Pyrotechnics of the National Fire Protection Agency. Wikipedia entry about G. Harry Stine. https://en.wikipedia.org/wiki/G._Harry_Stine