HELP!! (Driver LM numbers)

dicksy · November 30, 2009

Currently really struggling off the t with my driver and i need help. i usually put about 2200-2400 revs on the ball with a 12-14 degree launch angle. however, i'd like to get the launch angle to 15-16 degrees. Thinking of going to a 12 degree driver with a low spin shaft.

what you think or recommend?

all thoughts welcome.

schamp401 · November 30, 2009

Head Speed

Approximate Launch Conditions

120 mph 12 degrees and 2,200 rpm
100 mph 13 degrees and 2,400 rpm
80 mph 14 degrees and 2,600-3000 rpm
* assumes standard turf conditions

Frank Thomas posted these launch angles as the optimum based on swing speed. You might visit his sight at franklygolf.com . His advice is usually pretty good.

mgranato · November 30, 2009

What do you know about your current driver - swing speed, angle of attack, and actual clubface loft?

The backspin is largely dependent on the clubs loft and can only be influenced a relatively small amount with shaft changes. For exmple, a swing speed of 100 mph with a level angle of attack and a 12* club loft would produce 3120 rpm's of backspin. A range of backspin from 2700 - 4000 rpm's would produce the same carry distance for that same swing. The range narrows a bit as the swing speed gets higher, but it's not nearly as critical as most think.