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Pilotage and dead reckoning: Difference between revisions
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→Dead reckoning: When the wind shifts your calculations goes out the window
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=== Dead reckoning === | === Dead reckoning === | ||
Using ''dead reckoning'' is more or less the act of following, and updating, a preplanned "time table", often called a ''([[VFR]]) navigation log'' or ''nav log''. The difference between the nav log and your local bus' time table is that the nav log, apart from times and places, in this context often called ''checkpoints'' or ''waypoints'', also include the heading, [[altitude]] and [[airspeed]] you need to have to get to the next checkpoint on time. | Using ''dead reckoning'' is more or less the act of following, and updating, a preplanned "time table", often called a ''([[VFR]]) navigation log'' or ''nav log''. The difference between the nav log and your local bus' time table is that the nav log, apart from times and places, in this context often called ''checkpoints'' or ''waypoints'', also include the heading, [[altitude]] and [[airspeed]] you need to have to get to the next checkpoint on time. | ||
One important thing to remember is that your planning never can get better than the weather forecast permits. In essence, if, or rather ''when'' the wind shifts, your calculations goes out the window and you have to rely more on your pilotage. | |||
==== The navigation log ==== | ==== The navigation log ==== | ||