Part 4 of the Don Smith B-17 RC Warbird Bomber: Building the Wings

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In this video, I provided a detailed overview of how to assemble the B-17 bomber wing designed by Don Smith.
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Washout in a wing is a design feature where the angle of incidence decreases from the root to the tip of the wing. This means that the wing root has a higher angle of incidence compared to the wing tip. Here are the main benefits of washout:
1. Improved Stall Characteristics: Washout ensures that the wing root stalls before the wing tips. This is crucial because it allows the pilot to maintain control over the ailerons, which are located near the tips, even during a stall. This helps prevent sudden, uncontrollable rolling motions and reduces the risk of entering a spin12.
2. Enhanced Stability: By stalling the root first, washout helps keep the aircraft more stable during a stall. The airflow over the tips remains smoother, providing better control and stability.
3. Reduced Lift-Induced Drag: Washout can also help in reducing lift-induced drag. Since the tips are at a lower angle of incidence, they produce less lift and therefore less drag, which can improve the overall efficiency of the wing.
4. Safety in Maneuvers: During maneuvers, especially in turns, the inside wing tip moves slower and is more prone to stalling. Washout helps mitigate this by ensuring that the root stalls first, maintaining better control.