Compass, magnetic and true course calculator. Calculates true, magnetic and compass direction (course, bearing) by a given direction, magnetic declination and deviation.

2022年5月25日 · The true course is the aircraft path over the ground referenced to true north. The difference between the two results from a crosswind, which may require you to fly a different true heading to achieve your true course.

Navigation Calculator using ellipsoidal earth models. Calculate true course and distance between points.

2024年12月1日 · Magnetic courses on PBN [that is, GPS-based] procedures are calculated two different ways. SID/STAR procedures use the airport magnetic variation of record, while IFR enroute charts use magnetic reference bearing.”

I think for calculating the True Course (TC) I need to subtract the Deviation Angle (DEV) from the Magnetic Course (MC): TC = 139° - 2° = 137°. Why subtracting, well based on "West is Best, East is Least" principle...

2008年6月16日 · 1) True Course (TC): This is the course measured from your navigation plotter when you plot your flight on your map. Remember that because of the projection of the map, it is best to read this course in the middle of the leg. 2) True Heading (TH): Now that you have a true course, we need to correct for winds which will give us a true heading.

True Course: The aircraft's course over the ground relative to true north. True course is measured with a navigation plotter and a sectional map. True Heading: True course corrected for wind .

The first calculates a distance on loxodrome (rhumb line) and course angle (azimuth) between two points with given geographical coordinates. The second one outputs compass point given course angle in degrees.

2023年10月23日 · True Course (TC) is the direction or heading you calculate when plotting your flight's route on a sectional chart using a navigation plotter. You'll get the most accurate TC if you measure it in the middle of the flight leg. That's because map projections tend to distort measurements at different points. What is True Heading?

Robert's patented true course finder with magnifying glass, used in sea navigation, patented by WH Roberts in 1876, by Alfred Apps, London, c.1876