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Off topic chronograph

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20 January 2003, 03:29
<t_bob38>
Off topic chronograph
Anyone here ever set up their chronograph to measure golf club head swing speed?
20 January 2003, 05:44
mbk
Hitting a golf ball is much more fun when done with a bullet at velocities of say 2000 fps and above at a hundred yards rather than using a club [Big Grin]
Mike
22 January 2003, 05:05
Marsh Mule
It can be done! Just make sure you don't hit it FAT! [Big Grin] [Eek!]
22 January 2003, 05:16
jeffeosso
unless you plan on putting the tee right in the middle of a chrony, it can't be done accurately with one, as you want to know CLUB speed (that moves in an arc) rather than ball speed (still in an arc, but you know)

the working method is time between distances on any chrony, and if the club moves in an ARC, the speed will be read SLOW as it's actually covering more distance going down through gate one, down to ball, and UP through gate two... the software will just consider it to be time from gate one to gate two, linear, rather than speed of the club's arc.

rader gun!
jeffe
22 January 2003, 08:23
<t_bob38>
I'm mostly interested in "pretty close", and what I do that affects the speed. I've got an Oehler 33 so can put the screens any distance apart that I want, so close spacing reduces the accuracy of the electronics, but uses a straighter part of the arc. And, I don't have a radar gun.
22 January 2003, 09:29
Dutch
Jeffeosso is right, as far as it goes, but a bit of trig and you can calculate the true speed.

Of course, the difference between the two is probably smaller than the tolerance of the chrony. JMO, Dutch.
22 January 2003, 09:51
jeffeosso
most of these (i just posted a longer note the other day) run at 99.5% accuracy... but that's with a relativily straight arc... I do wonder what it would read.. put the tee right in the middle and take a whack...
jeffe