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Speed,Combat,Scale,Racing => Speed Talk => Topic started by: Dennis Toth on July 11, 2021, 10:28:46 AM
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Guys,
I have been looking for the plans and article for the original 1/2A full fuse proto speed plans, published sometime in the mid to late s 60"s. This was when the event first started in the US. I think it was by either Dale Kirn or Warren Kurth. I have tried Outerzone but they only have recent ships. If anyone can post a copy or point me to a site to download it I would appreciate it greatly.
Best, DennisT
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dale kirn had a full fuse 1/2 a proto in a mag that his daughter flew. i have the fiber glass top and pan for it
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Was that plane called the Spullet? I have a Model Airplane News which features it.
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Ken,
I think I found it. The ship was not a proto but a speed ship with one wheel, inverted engine with helmet cowl and full pan. His daughter built and flew it to a Senior record in 1979 -80. It was published in Model Aviation October 1980. The file is to large to post but here is the link: https://plans.modelaircraft.org/wp-content/uploads/pdf/MA00315MA1.pdf cute ship.
I think there was a full fuse proto was publish in the mid 1960's.
Best, DennisT
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i have both
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Guys,
I have been looking for the plans and article for the original 1/2A full fuse proto speed plans, published sometime in the mid to late s 60"s. This was when the event first started in the US. I think it was by either Dale Kirn or Warren Kurth. I have tried Outerzone but they only have recent ships. If anyone can post a copy or point me to a site to download it I would appreciate it greatly.
Best, DennisT
Dale Kirn was instrumental is establishing rules for the new (at the time) rules for 1/2A Proto. The rules at that time were for a cowled engine, two wheels, 18" minimum span, something like 45 sq in minimum area and required a canopy. (The rules were later changed to require only a 14" minimum span.) A cowled engine was not required if it was a scale model of a full size airplane.
Dale published his "Lil Pronto" in American Modeler, Sep/Oct 64, inverted engine. Plans showed a magnesium pan which Kirn suggested could be made from a carved wood pattern and take it to a foundry that does magnesium casting. He also suggested the pan could be formed with a full length of "1/8" epoxy board with a balsa block glued to it and carved to outline."
There were several other 1/2A proto plans published after that. Then, the event sort of morphed into the 1/2A profile proto event.
For the record, Cox did sell magnesium pans for these 1/2A Proto ships that fit the plans to the Kirn Lil Pronto.
Plans and the article are available from the AMA Plans Service.
Keith
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Model Aviation plan 142. "Eagle I" 1/2A proto by Jim Wade. Plans say 1976. Took about one minute to search MA plans for 1/2A proto. %^@