Taken from an Italian question bank. Could someone explain how you get to this answer? Only one I've found which a few of us can't arrive at happily.
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An airfield has a TORA of 3,000m with the first obstacle (that protrudes above an upward slope of 1.25% from the end of the runway) 6,560ft away. What would the TODA be for an aircraft with 3 turbojet engines?
a) 4500ft
b) 5000ft
c) 14760ft *
d) 16400ft
* Answer is C. How?
Spotted the obvious trap of 3000m needing to go to feet but don't know which factor to apply to the distances to arrive at C.
Something similar on Bristol question bank too with no explaination apparantly.
Appreciate the help.