In mountainous terrain, the minimum altitude is how many feet above the highest obstacle within 5 miles horizontally?

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Prepare for the Federal Aviation Regulations (FAR) 135 Test with engaging flashcards and multiple-choice questions. Each question offers hints and explanations to help you succeed. Get ready for your aviation exam!

Multiple Choice

In mountainous terrain, the minimum altitude is how many feet above the highest obstacle within 5 miles horizontally?

Explanation:
In mountainous terrain, the minimum altitude is set high to ensure safe clearance over terrain and obstacles. The rule is to stay at least 2,000 feet above the highest obstacle within 5 miles horizontally. So you take the height of the tallest obstacle in that 5-mile radius and add 2,000 feet to determine the minimum safe altitude in that area. For example, if the tallest obstacle is 6,500 feet MSL, the minimum altitude would be 8,500 feet MSL. This standard helps account for performance margins and ensures you have room to maneuver around terrain.

In mountainous terrain, the minimum altitude is set high to ensure safe clearance over terrain and obstacles. The rule is to stay at least 2,000 feet above the highest obstacle within 5 miles horizontally. So you take the height of the tallest obstacle in that 5-mile radius and add 2,000 feet to determine the minimum safe altitude in that area. For example, if the tallest obstacle is 6,500 feet MSL, the minimum altitude would be 8,500 feet MSL. This standard helps account for performance margins and ensures you have room to maneuver around terrain.

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