Loft Distance (yards) 12 175 24 178 36 138 48 100
Reasonable numbers for lofts above 24*. It looks like it would take lighter heads (hence higher club head velocities) to get the distance back up with woods. The trajectory for the the 24*, 36*, and 48* lofts were comparably high. The 12* trajectory was about half the height. I did not play with the other parameters in Max's software (such as spin) that will influence true results.
Interesting, though.
Alan Brooks
At 04:37 PM 1/4/2005 -0500, you wrote:
Dave T. has done the math comparing single length iron distances vs. traditional irons, and there really is a minimal affect on distance by going to single length (at say 37").
Sometime, I'll have to re-do it with a different set of assumptions. The graph in the Club Design Notes assumes you couldn't get a set with constant head weight. I assumed a skilled golfer that could still hit the ball with wildly different swingweights, and who in fact got some clubhead speed advantage with the lighter clubs. (I used data from Cochran & Stobbs to estimate the speed advantage.)
To evaluate the concept that Tim (or David Lake of 1IronGolf) is pushing, I'd re-do the simulations for constant head weight and constant speed. I don't know if it would make single-length look better or worse. Longer irons would have lower clubhead speed but higher mass; don't know if the resulting momentum and energy transferred comes out higher or lower. Just gotta go ahead and crank through the numbers.
Very interesting, though! DaveT
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