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1 in 60
Stephen created the topic: 1 in 60
Not sure if i am doing wrong or what, hope you can help.
In the current issue Navigation book(may 2009) i am trying to get through the 1 in 60 exercises from the WAC on page 4.39
Basically the coordinates given in the questions and the landmarks on the map do not match up, somtime by a significant number of mile which puts out the answer you get for all the 1 in 60 calculations.
For instance the last example (silo 1nm east.. tracking to Invernell)Invernell is given as 2935S 15108E which i make out to be about 11nm from the invernell. When i calculate the answer using the coordinates given i cannot get the same answer as you give in the book, the distance off track.. become so differnt from yours it changes all the calculations.
So which am i suppose to use? are the coordinates just a guide to help find the visual point on the chart or am i missing something else that is messing with my answers?!
It was never intended that you use the co-ordinates to solve the problem, just as you wouldn't [couldn't] do in practice in the cockpit. The co-ordinates were given simply to assist people with no local knowledge to locate the feature described. Use the feature as you would in practice. Good luck with your studies.