Thanks
Tflan
----- Original Message ----- From: "Dan Neubecker" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, November 02, 2004 10:58 AM
Subject: RE: ShopTalk: Old fart
Tflan,
FYI, If you get on Wishon's site Tom has a high loft 915cfe at 14º and will hand pick and probably get you a 15º. Bang Golf has most of their heads up to 14º and most places that carry them will hand pick for loft. Also the Bang Mellow Yellow has both 16º and 18º models and the Big Bang 450 has up to a 16º head available.
Dan
-----Original Message----- From: tflan [mailto:[EMAIL PROTECTED] Sent: Tuesday, November 02, 2004 12:09 PM To: [EMAIL PROTECTED] Subject: Re: ShopTalk: Old fart
Thanks to all who suggested solutions to this dilemma. I have a friend who owns a 15° Mellow Yellow. I'll borrow it from him and have the guy give it a go. The head's shafted with a Prolite 45 "R" flex so it shouldn't be too much of a problem for the guy to hit it.
Also, I think GS or Maltby has a 15° jumbo head with no numbers on it. I put one together about 6 months ago for a guy, but don't recall the model. Ah well, back to the catalog.
I'll report the results
Thanks again.
TFlan
----- Original Message ----- From: "Dave Tutelman" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Monday, November 01, 2004 6:42 PM
Subject: Re: ShopTalk: Old fart
> At 04:36 PM 11/1/04 -0800, tflan wrote: >>Problem is I can't seem to get the guy into a driver he can hit more than >>about 200 yds. And he hits it low.... >>I had him go to a local super store and hit balls into a screen. Sure >>enough, average carry distance with nearly every driver wasabout 155 yds, >>average total distance about 208 yds. Face angle average about 5° closed >>at impact. Average clubhead speed about 90 mph. All that's reasonable, I >>think, but something's happening somewhere before impact and I'll be >>damned if I can see it. > > Let me take a shot at it, based not on experience with "old farts" (though > I qualify for senior rates at most of the local courses myself) but on > computer simulations. I tried it with a couple of different computer > programs: > - Max Dupilka's "Trajectory", my old standby. > - Tom Wishon's "Trajectory", a new toy I'm learning to use. > The results from both programs were remarkably similar, so I'm encouraged. > > You cite enough to give me a hint where to start: > * 90mph clubhead speed. > * 155yd carry distance, with low trajectory. > * This happens with a variety of heads, shafts, lofts. > * 5* closed at impact. > > First of all, 12* is not a very high loft these days. If you plot maximum > carry vs loft for a 90mph clubhead speed, you find that the maximum carry > comes at about 15* loft. That said, you lose a little at 12*, but not as > much as 10yd, so that is only a small portion of his problem. > > That study assumed a 0* angle of attack. But you said: > * He hits it very low, and > * The clubface is severely closed at impact. > Both these strongly suggest a negative angle of attack. It is possible to > set angle of attack in both programs, so I tried it. If he is hitting the > ball with a descending blow of maybe -5* angle of attack, that could cause > the sort of result you're seeing. > > In order to get more carry, you'll need to get him a higher launch angle. > It needs to be 12.5 or 13 degrees. You won't get as much benefit doing > this with loft as you will with fixing his angle of attack problem (a > swing problem), but you can come close. Try a REALLY lofty driver -- maybe > one of those 18* Mellow Yellows. If that doesn't produce a significant > yardage gain (a carry in the vicinity of 200 yards) with a higher initial > trajectory, then this theory is all wet. And it may be. :-( > > Good luck! > DaveT > > >
