
Part 3 in the series about Calculating tracks and distances between two not so random points On the bottom of this post you can try your luck with two ATPL questions for this case. The plot thickens. You must have arrived here because the answer to the two previous questions is “no”. Case 1: Same […]

If case 1 is not true then try this: Question 2:Are A and B on each otherâ€™s antimeridian? Antimeridians are two meridians exactly 180 degrees apart that connect a great circle around the globe. Example: A: 40N 120EB: 10N 060W

So now that you know that these questions not random at all but specifically crafted for the ATPL examdatabase it is time to show you the system. To start your analysis, ask yourself: Are A and B on the same meridian?

In the ATPL exam you must calculate between points that may look like they are just two random positions on earth, but the truth is that they are not. These points have been carefully selected so that the problem can be solved without using the formulas for great circle track and distance.