A photograph is to be obtained at a scale of 1:12,000 by aerial photogrammetry. If the focal length of the camera to be used is 7.5", determine the height at which the aircraft should be flown if the average elevation of the terrain is 850 ft.
What will be an ideal response?
Use Equation 14.1 and solve for H.
(1 / 12,000) = ((7.5 in)/(ft/12 in)) / (H – 850 ft)
H – 850 = 7500
H = 8350 feet
Therefore, the plane should fly at 8,350 feet.
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