BCrosby -
The Ben Hogan Golf website (
www.benhogan.com) has an excellent archive of the various models of irons they have made over the past 50 years or so. Unfortunately, they only give the specs of the iron made since 1979.
These are the specs for the 1979 Apex irons:
3-iron: 23*loft/38.75" shaft
6-iron: 33.5*/37.25"
PW: 50*/35.5"
These are the specs for the 2000 Apex irons:
3-iron: 22*loft/38.75" shaft
6-iron: 32.5*/37.25"
PW: 48*/35.5"
(*= degrees of loft)
My guess is that lofts from clubs in the 1950's might be 1 or 2 degrees weaker and shafts might be 1/4" or 1/2" shorter, but that is strictly a guess on my part. Shaft length can impact how much distance you can get from a club as much as the club's loft angle.
Of course, cavity backs, heavy sole weightings and square grooves have also had a big impact on shot trajectory.
DT