Golf- Iron Loft changes and one-Length Irons

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(The last two listed in the chart are one length irons and this chart is from their website.)

As you can see, the loft has changed drastically in the past decade.

With quality golfers a 1/2 inch and 4 degrees of loft change usually equates to 12 yards of distance.
I pulled the specs on my clubs from High School and College.   1979 (I think) Wilson Staff FG17.  PW was 50 degrees and 35 inches and the 5 iron was 37.25 inches.

• The weight of this brand of one length is each head at 265 grams per head.
• This is a 7 or 6 iron weight. 
• The Sterling one-length model is at 274gram or 8 to 9. 
• Bryson was using 280 grams with Cobra. 
• An avg PW weighs 292 grams. These vary slightly
• Subtract 7 grams per club going up to Drivers witch weight around 200g.

• Avg Length of PW has been 35.5 inches for a few years,
• You will normally cut the shafts 1/2 increment longer as you go up. 
• King Cobra one-length is 37.5.  (Bryson uses this length.)
• Consider 1/2 in length adding 1.5 yds of carry with same wt and head.

An avg PW weighs 292 grams. These vary slightly 
Subtract 7 grams per club going up to Drivers at around 200g.

A quarter weighs 5.7 grams as a point of reference.
 The shaft discussion would take a much longer discussion.

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