It really is a question of practice. The whole wheel is based around logarithmic scales and everything is based around the number 10 i.e log to base 10.
The wind side is much simpler but does require practise. The easiest is to put the center dot on the 0kt line and put the wind heading on the top detent. Then just put a pencil mark on the wind speed (the squared area not the semicircular area). Then simply take the dot to the IAS that you have planned for, say 95kts with the PA-28. And put the heading for the leg u r calculating into the detent at the top. This shows u where the wind is coming from in relation to the aircraft track. Then adjust for the drift (west is best and east is lest). The drift correction (deg) should be equal to the number of degrees that the pencil mark that u drew is sitting on.
And after that just read the pencil mark off on the speed scale to get the groundspeed that you will get due to the wind effects.
Hope this helps
AND keep PRACTISING!!!
Tom
