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02-18-2013, 05:29 AM #69
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02-18-2013, 06:06 AM #70
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02-18-2013, 06:39 AM #71
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02-18-2013, 07:40 PM #72
just based on how it feels, nothing scientific, when i use a relatively lighter racket, my swing speed immediately goes a tad bit faster. however, that doesn't mean that the increase in my swing speed will compensate for the lost of mass to have the same power at the end. and unfortunately for me, my swing does goes back to normal as well, just so that the timing is the same, which causes me to lose power, somewhat.
again this is not scientific and i'm not trying to prove anything, but just my experience switching from what i normally use to a lighter racket.
i am very curious as to how this racket will perform. i have used light rackets and i have not gotten anywhere with them. light racket as in the nanospeed 9000 or nanospeed 9900 or nanoray 700 rp/fx. so knowing how i play, i'm sure that my wrist action will be really fast, but it will not be able to generate any power off of a 6u racket.
it is good to see that yonex finally made a racket in the superlight weight category to satify this niche!
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02-19-2013, 05:14 PM #73
Faster racket doesn't mean more power. Kinetic energy of the racket is completely irrelevant - what matters is the momentum. When two moving bodies connect, they can transfer (part of) their momentum to each other. With M=v*m, a faster swing speed will not factor in more than the mass (this is a very popular error amongst Wing Chun/Jeet Kune Do practicioners who also claim that the kinetic energy matters and thus hitting speed is more important than body mass).
The whole momentum debate has occurred several times already so I'm not really up to making the whole argument again...just research momentum and mechanics (more specifically, kinetics) if you're interested in this. Otherwise, take my word (as an engineering student who passed the kinetic mechanics test) that only the momentum matters, not the kinetic energy.
On a more personal note, I don't believe a 6U racket will satisfy a real need - it's just too light to be useful, really. No one has THAT quick a swing!
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clawhammers liked this post
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02-19-2013, 05:18 PM #74
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02-19-2013, 08:15 PM #75
Faster racket will increase chances for injuries, since we might think that the faster our swing, the more powerful the shot will be. However, i have to agree with j4ckie, it is the body mass that really matters.
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clawhammers liked this post
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02-19-2013, 08:35 PM #76
kinetic energy is related to momentum by the relation of

energy is not created nor destroyed, its just transferred or converted upon impact.
otherwise, take my word (as a non-engineering biologist whom did not take anything in close resemblance kinetic mechanics in both undergrad/gradschool), that momentum and kinetic energy... have an intimate relation in the bedroom...
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02-19-2013, 08:40 PM #77
Whether you use momentum or kinetic energy to explain the shuttle impact, the best combination would still be to have more mass moving at a faster velocity.
From my experience with various frame designs, this is best achieved with a solid aerodynamic frame, for example, MX series, or Panda Precision Pro / Revelation.
And finally, match the shaft flex to your swinging / whipping action and you'll have a fast powerful racket.
Last edited by visor; 02-19-2013 at 08:44 PM.
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02-19-2013, 08:54 PM #78
My take on this FB racket is that Yonex manages to shave wt (mass) mostly from the shaft and the handle in order to bring it down to 73g. Perhaps they shaved some from the frame too, but too much from there would compromise durability and also transfer of momentum / KE at impact.
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surajaya liked this post
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02-19-2013, 09:36 PM #79
yup...the ultimate combi is big mass at max velocity (with max velocity obtained through strong acceleration)..
chinese kungfu analogy.. its how people use bamboo poles, or flexible wooden sticks but yet able to smash tiles or even bricks, although i might need a huge sledgehammer for the same job..
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02-19-2013, 10:46 PM #80
I should receive this racket very soon to test it. I'll make sure to review it, and of course compare it to Black Knight's Photon racket
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cobalt liked this post
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02-20-2013, 02:24 AM #81
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02-20-2013, 02:43 AM #82
I hope your hypothesis is true. Assume that FB has very-very light shaft (and frame weight almost equal to 3U racket), this will make the weight distribution concentrated on the handle & frame. Momentum loss will not be too significant but maneuverability will be significantly faster.
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02-20-2013, 03:12 AM #83
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02-20-2013, 04:26 AM #84
Speculations!! Time to figure out if its true. Have in my hands a arcFB with ultimax at 25lbs. Going to play in an hr's time
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02-20-2013, 04:29 AM #85





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And that equation just proves my point - the momentum is the squareroot of Ek*2m. With Ek=1/2mv² thats sqrt(m²v²) and p=mv....which is just what I said.

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