From my understanding, if the wind and the track is 30 degrees off, the crosswind is half, 45 degrees is 2/3, 60 degrees is 9/10, and 90 degrees is all crosswind.
Also, 10 degree is 1/6, 20 degree is 2/6, 30 degree is 3/6, 40 degree is 4/6, 50 degree is 5/6, and 60 degree is 6/6. Is this method accurate?
In this question, the wind is 73 off track then how do I solve this mathematically? The reason I want to know how to estimate crosswind by hand is because I am preparing for an airline selection process and I am sure whistwheel is not allowed in the exam room.
Thank you