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Air Navigation, chapter 11
The Wind Triangle, CP and PNR
StartLesson 1 of 6
The Triangle of Velocities
Build the air, wind and ground vectors head to tail and read how the triangle closes.
Chapter lessons
1The Triangle of VelocitiesBuild the air, wind and ground vectors head to tail and read how the triangle closes.2Solving the Wind TriangleChoose the correct wind-triangle inputs and solve heading, groundspeed, track, drift or wind with the validated navigation engine.3The DR Position and the 1-in-60 RuleAdvance a DR position, then use distance gone and distance to go for track error, closing angle and heading correction.4Range and Radius of ActionSeparate still-air range from radius of action and calculate a safe out-and-home distance.5The Critical PointPlace the critical point where engine-out time to either suitable aerodrome is equal and use the correct speed for time to CP.6The Point of No ReturnCalculate safe endurance and the last point from which a return to departure remains possible.