Shaft freq on shorten shaft

[yahooo]

Can anyone explain to me that how is the shaft freq changing if I shorten 1' by butt? Graphite shaft. the factory Specs says:Freq 240,Torque 4.4. Will the figures go up or down?
thanks

[Carlton]

Generally speaking, shafts soften when cut from the butt but stiffen when cut from the tip.

[ollie]

Can anyone explain to me that how is the shaft freq changing if I shorten 1' by butt? Graphite shaft. the factory Specs says:Freq 240,Torque 4.4. Will the figures go up or down?
thanks

Shafts get Stiffer no matter which end you shorten them from. When you cut to playing length from the butt you simply move along the same frequency plane. When you cut to playing length from the tip (on most but not all shafts) you move to a different and higher plane. You get approximately 6 cpm per inch. If a shaft has a 240 sticker on the butt that means that it will be 240 cpm installed as is, and them butt cut to 45 inches, assuming a 200 gm head and a standard size and weight grip.

Ollie

[TourIQ]

The Rifle scale was based on 8.6 cpm / inch [from memory] and not 6.

[ollie]

The Rifle scale was based on 8.6 cpm / inch [from memory] and not 6.

Hi I think you're right but I also think that they used a different length Butt Clamp than most did then, and do now. I think that theirs was 4" and most are 5" Consistent shafts move 6 per inch but there are always exceptions. I've seen an inch move as much as 12 and as few as 0. You didn't want to be playing either of those shafts.

Ollie

[TourIQ]

Hi I think you're right but I also think that they used a different length Butt Clamp than most did then, and do now. I think that theirs was 4" and most are 5" Consistent shafts move 6 per inch but there are always exceptions. I've seen an inch move as much as 12 and as few as 0. You didn't want to be playing either of those shafts. Ollie

Many clubmaking length vs. cpm charts also have Rifle designations on the same chart and these charts were based on the standard 5 inch butt clamp and not the 2 3/4 inch [or something close to this] that Brunswick Rifle first came out with many years ago.

An inch can move as much as 12 cpm if you don't mark and put the shaft back in along the same rotational plane. I've seen the same shaft vary by 'delta 15 cpm' depending on its orientation [s vs. n plane]. These are called supershafts. More commonly found with sheet wrap graphite over filament wound.

[Fore The Golfer]

Has Yahoo's question been answered?:confused: :confused: :confused:

[thewitt]

The butt frequency of the club will go up when you shorten it by trimming off 1".

How much is going to depend on the shaft, but most shafts will move by 10 cpm or so if you cut 1" off the butt.

-t