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Great Planes Ultra Sport GP/EP ARF

Written by Andrew Griffith A new take on a popular design Product review As seen in the August 2017 issue of Model Aviation. Bonus video Specifications Model type: Sport aerobatic ARF Skill level: Intermediate Wingspan: 55 inches Wing area: 564 square inches Wing loading: 22 to 26 ounces per square foot Airfoil: Symmetrical Length: 49.5 inches Weight: 5.5 to 6.5 pounds Power system: .46 to .55 two-stroke glow engine; .70 four-stroke glow; or RimFire 55 electric Radio: Full range five-channel minimum Construction: Built-up balsa and light plywood Covering/finish:…

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