
Concept explainers
A slender missile is flying at Mach 1.5 at low altitude. Assume the wave generated by the nose of the missile is a Mach wave. This wave intersects the ground 559 ft behind the nose. At what altitude is the missile flying?

The altitude of flying missile.
Answer to Problem 9.1P
The altitude of flying missile is
Explanation of Solution
Given:
The Mach number of slender missile is
The horizontal distance is
Formula Used:
The expression for the relation between Mach angle and Mach number is given as,
Here,
The expression for the tan function can be given as,
Here,
Calculation:
The Mach angle can be calculated as,
The vertical distance can be calculated as,
Conclusion:
Therefore, the altitude of missile is flying is
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Fundamentals of Aerodynamics
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