In the written PPL Nav exam, they give you a flight planning log sheet with the wind velocity and dir for each leg already written in for you.
It's not a difficult exam to pass as long as you are proficient with the Crappy-5 and are familar with airspace info on the charts.
When you're actually flying, you'll be VFR anyway so just look out for landmarks along your route.
[ 07 October 2001: Message edited by: Blackshirt ]