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Sailplanes, Gliders
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Seattle A-6, by David Aeronstein
Seattle A-6, by David Aeronstein

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Seattle A-6, by David Aeronstein
Description: David Aronstein designed the Seattle A-6 in the late 1980s. Back in 1993 I went to the Model Hobby Expo held in one of the large buildings at the Puyallup, Washington fairgrounds, and I saw an elderly gentleman winding up the rubber band on an odd-looking model airplane and launching it. At the time I didn’t know anything about indoor free flight, so I was amazed at how long the model circled the large table displaying this guy’s vast collection of beautifully built, small, rubber-powered model airplanes. I asked him if he had plans for this rubber powered model and he told me to look in his box full of plans. I flipped through the stack of plans and found a copy of it and noticed that it was called the Seattle A-6 and that the man flying the model was Gil Coughlin, who had at one time made kits of this simple indoor model airplane. Gil told me to leave a quarter on the table to pay for the plan. A few months later I joined BEAMS, the Boeing sponsored indoor free flight model airplane club, and I built and flew my first Seattle A-6. I was amazed at how well and how long it flew.

Unfortunately, a couple of years later I found out that my copy of the Seattle A-6 plan was slightly too big, making the wing a little over 30 square inches. I didn’t know who had the original Seattle A-6 plan, so I redrew the plan to the correct size. The wing’s center section chord should measure 2.5” and on the old plan that I got from Gil it was closer to 2.6”. You may notice that the rules for Seattle A-6 are listed on the plan, and they differ from the current AMA A-6 event rules. Per the original A-6 rules, there was no minimum weight requirement, and some guys were getting their A-6 models down to 1.2 grams by using incredibly light balsa and condenser paper covering. I did not compete in the A-6 event at that time because I thought condenser paper was not allowed per the original rules devised by Clarence Mather way back in the day, and I did not have the skills nor the light balsa and covering material to build a 1.2 gram A-6. I still have my original Seattle A-6, and it has not been flown in more than 25 years.
Keywords: Indoor Duration
Date: 01.12.2023 12:43
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File size: 3.1 MB
Added by: higgphanx1

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