General Nav Question
Hi all.
im after a quick check on my answer to an ATPL gen nav question, i have got this one wrong but for the life of me cant see how!!
A straight line drawn on a mercator chart joins N (56S 002E) to P (56S 006W)
and measures 100cm. The earth distance (in Statute miles) represented by the line N-P is?........
well there are 8 degrees between the points N-P 1 degree is 60nm, so 8 degrees are 480nm. 480 nautical miles is 555nm, which im told is wrong answer!!
the possible answers are
A-309
B-500
C-895
D-555.
How can i be wrong, or am i just missing the obvious and being thick?
put me out of my misery......