A sailplane with a lift/drag ratio of 22:1 sinks approximately how many feet over 15 nautical miles?

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Multiple Choice

A sailplane with a lift/drag ratio of 22:1 sinks approximately how many feet over 15 nautical miles?

Explanation:
Glide ratio shows how far you can travel forward for each unit of altitude you lose. With a lift/drag ratio of 22:1, the aircraft travels 22 units horizontally for every 1 unit it sinks. To find the altitude lost over a given distance, divide the horizontal distance by the glide ratio. Convert 15 nautical miles to feet: 15 × 6,076 ≈ 91,140 feet. Then 91,140 ÷ 22 ≈ 4,142 feet. So over 15 NM, the sailplane would descend about 4,100 feet.

Glide ratio shows how far you can travel forward for each unit of altitude you lose. With a lift/drag ratio of 22:1, the aircraft travels 22 units horizontally for every 1 unit it sinks. To find the altitude lost over a given distance, divide the horizontal distance by the glide ratio.

Convert 15 nautical miles to feet: 15 × 6,076 ≈ 91,140 feet. Then 91,140 ÷ 22 ≈ 4,142 feet. So over 15 NM, the sailplane would descend about 4,100 feet.

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