Golf Club Selection

It's obvious to all experienced golfers that when hitting uphill, you need to hit more club and when hitting downhill, you need to hit less club. The question is how much more or less. Of course, it depends on many conditions. Here we will discuss and deal with the effect of elevation changes alone (without wind, rain, cold, etc) so that you can improve your club selection and lower your score.

The trajectory of a golf ball is now well understood. It depends on ball velocity, trajectory, and spin as well as on air temperature, humidity and density. is a graphic of the trajectory of a golf ball hit with a driver, 5-iron, and 9-iron.

Note that in the first part of each trajectory, the path of the ball steepens. This is due to the lift created by the spin of the ball. The trajectory of each is different at impact. The 9-iron's impact is the steepest and the Driver's impact is the least steep. Because of this, a Driver's range is more greatly affected by elevation changes than a 5-iron and the 5-iron's is more greatly affected than the 9-iron's. For every yard of fall, the Driver ball travels farther. If on a tee shot, for instance, the ball were to land 20 yards below the tee in elevation, it would travel horizontally 15 yards farther.