An airplane weighing 250 kN has a span of 34 m and is flying at 40...

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An airplane weighing 250 kN has a span of 34 m and is flying at 40 m/s with its tailplane level with its wings and at a height of 6.1 m above the ground. Estimate the change due to ground effect in the downwash angle at the tailplane, which is 18.3 m behind the center of pressure of the wing. An airplane weighing 250 kN has a span of 34 m and is flying at 40 m/s with its tailplane level with its wings and at a height of 6.1 m above the ground. Estimate the change due to ground effect in the downwash angle at the tailplane, which is 18.3 m behind the center of pressure of the wing.

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