How would you determine whether a particular obstacle would affect your performance, be it landing or take off?
By doing the sums for each obstacle.
After gaining some experience with a particular Type it becomes easier to eliminate some of the non-critical items by inspection ..
Yes John, but in the REAL world, (and I'm acting as devil's advocate now) without plotting charts, and operational TIME constraints, how for example would you attack this one....?
E) MULTIPLE OBST (27 WIND TURBINES) OPR (LONG TERM) WI AREA BOUNDED BY 533906N 0001622E - 533758N 0001854E - 533652N 0001720E - 533657N 0001618E - 533911N 0001518E - 533906N 0001622E (VCY HUMBER ESTUARY). MAX HGT 463FT AMSL. 14-08-0733/OPS1
....stab a guess and go, based on the assumption that the airport (or ops, if you have such a backup) would tell you if it was a known issue? Or would you find a chart to plot the lat/longs?
Be honest!