How to calculate W/V from true HDG/TRK/GS using a CRP-5 flight computer?
To work this problem in reverse:


Set the True Course (Track) at the Index and slide the grommet over the Ground Speed (GS) of 242 knots:





Draw a dot with an arrow behind it, marking the wind vector at the intersection of:

a)  8° right of center because the wind correction angle or heading is right of course (74° TH minus 66° TC); and

b)  230 True Airspeed (TAS)




Now, above, you are able to visualize the flight.  You could even draw your airplane in the middle and see the wind is a right quartering tailwind.


Finally, rotate the wind to the Index to read the answer.  Slide the center grommet over any line that's easy to read.  Read the wind speed up from the grommet (35 knots) and wind direction (from 180°) at the index: