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Solving For Latitude

In what latitude will a departure of 200 nm corresponds to a Dlo of 4° 16'?


SOLUTION:

The formula is Cos Lat = departure ÷ Dlo

Step 1. Since Dlo is given in degrees, we have to convert it first into miles.
                Dlo = 4° 16' x 60 = 256

Step 2. Divide departure by Dlo.
               200 ÷ 256 = 0.78125

Step 3. Inverse cosine the answer in step 2

I hope you have followed. Thanks.



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