Given the following data, determine:

a$)$ the planned flying height above the datum.

b$)$ total number of photos required $($for North$-$South runs$)$

c$)$ shutter speed and exposure time

d$)$ The distances between the photo centres and runs if they were to be plotted at the proposed map scale.

$\backslash$table$[[,],[$Proposed map scale,$\frac{1}{600}$