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MACDONALD S-20

STANDARD DATA: Gross wt. 720. Empty wt. 456. Fuel capacity 10. Wingspan 25'. Length 18'6". Engine 53-hp Volkswagen. PERFORMANCE: Top mph 110. Cruise mph 90. Stall mph 38. Climb rate 850. Takeoff run 300. Landing roll 300. Range 250.

The S-20 utilizes all-metal construction but keeps it simple by the extensive use of pop rivets. It features open-cockpit seating for one, low wings, and conventional landing gear. The fuselage is of steel-tube truss construction with a lightweight alloy skin. The constant-chord wings are also covered with the same lightweight alloy skin.

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