05-10-2013, 05:11 PM #188
If it was redistribution of mass, that means that I can detect changes probably in the vicinity of one to two decimal places, which I find slightly unbelievable.
05-11-2013, 01:17 AM #189
05-11-2013, 01:43 AM #190
If you followed this thread, I surmised that the head wt (ie. 3rd column above) is related to total wt and bp in an equation.
Head wt = (bp/length) x total wt, where length=675mm usually
It is this head wt that I'm suggesting that is important in determining how heavy a racket swings and feels, and how hard it can hit.
So, in the case of FB, it has a bare head wt of 32.6g, which is the lightest I've measure by far so far.
05-11-2013, 02:32 AM #191
Oh wait, these are bare weights, no string or over/regripping?
05-11-2013, 02:38 AM #192
i figured this way is more accurate and consistent, since the weight of strings and overgrips vary too much
05-11-2013, 02:51 AM #193
Yeah, true. Pity I don't know what the dry SW is on any of my rackets coz I've always measured it as a wet weight!
Could we devise a calculation to reverse engineer it from the dry specs?
Karakal PU Super Added: +14g
Factory Grip Removed: -8g
VS850 String: +4g
0.6 Overgrip: +8g
05-11-2013, 02:56 AM #194
05-11-2013, 03:04 AM #195
but before you go doing this, you really should get a new digital scale that is accurate to 0.01g
05-11-2013, 03:16 AM #196
I'll end up having quite a few scales in the house at this rate!
Are you sure your overgrip only weighs 0.7g? You mustn't overlap it at all.
05-11-2013, 03:32 AM #197
"As mentioned before, the white grip adds 0.7g,
VS850 and ZM67 adds 3.0g,
ZM65 adds 2.8g, and
ZM62 adds 2.6g to the head weight."
I should rephrase that paragraph better to:
Total wt Head wt contribution White rkep g09 grip (no finishing tape) 6.1g 0.7g VS850, ZM67 string 3.4g 3.0g ZM65 string 3.2g 2.8g ZM62 string 3.0g 2.6g
Maklike Tier liked this post
05-11-2013, 04:09 AM #198
Yeah cool, heaps clearer *thumbs up*
05-11-2013, 07:51 PM #199
I tried to calculate your dry specs but there must be some error in your measurement for your #4 without athletic tape... it doesn't check out with the head wt equation.
For the others, it's fine.
But seriously, you need to spend only $25 to get a more accurate 200g+/-0.01g digital scale from eBay.
Wet wt Wet head wt -grip-string=Dry wt -grip-string=Dry head wt 91 41 91-6-3=82 41-0.7-2.8=37.5 90 41 90-6-3=81 41-0.7-2.8=37.5
Those estimated wts are only rough estimates, as I would need original data with 3 significant digits.
PS. Looks like a 4U XP70 or 80 would be perfect for you.
Last edited by visor; 05-11-2013 at 07:56 PM.
05-11-2013, 08:04 PM #200
In that table the mx 80's came out heavier than both the voltrics. How is that? That mustn't have been dry head weight then right?
05-11-2013, 08:08 PM #201