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Dick Sarpolus’ Thermix ’13

Build your own thermal hunter Article, photos, and design by Dick Sarpolus Read the full article in the August 2014 issue of Model Aviation. Order Plans from AMA Plans Service RC sailplanes have changed during the past 45 years. Now there is carbon fiber, vacuum-bagged fiberglass wings, ailerons, spoilers, flaps, crow settings, and highly efficient airframe designs. My first RC sailplane was built with the wing and stabilizer from a large-class FF model, with a fuselage made to hold the radio gear. Launching was done by hand towing—like…

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