The Long & The Short of it!

One of our most requested racquet modifications is for extending the racquet or if it is a full custom racquet cutting off an uncut racquet!

This post is going to present the Wilson Blade 98 v9 in the standard length and the extended length. This is not a direct comparison because one is 16×19 and one is 18×20.  The focus here is on the effect of the extension on dynamic properties.

A question one would ask is “Why use an extended racquet?”

A knowledgeable racquet technician, and current extended racquet user, will know that an extended retail racquet will not necessarily be the same as a “manufactured” racquet.  This is likely due to the different weight placement and amount used by the manufacturer.

Briefly, then, an extended racquet will likely be a more powerful racquet… but let’s take a look at two (2) of the properties that contribute to power:

Overall Weight Swing Weight

Now look at the “Power, Calculated” data to see how the other two (2) properties contribute.

First the retail extended racquet

ManufacturerWilson
Racquet ModelWilson Blade 98 v9 18x20 Extended
Reference Tension46
String
Volkl V-Star 18
Machine UsedTrue Tension Pro
Static
String Bed Stiffness - RDC48
String Bed Stiffness -FlexFour59.5
String Bed Stiffness - SBS45.4
String Bed Stiffness - ERT33 Kg/Cm
Racquet Flex, RDC62
Racquet Flex, FlexFour45.1
Racquet - In Plane Stiffness397.4
Weight, Grams353
Weight, Ounces12.45
Balance, mm327
Balance, Inch12.87
Length, Cm69.9
Length, Inch27.520
Head Width9.61
Head Length12.85
Head Area, cm2625.5
Head Area, Sq. Inch96.9
Beam Height @ Grip, mm23.0
Beam Height @ Mid, mm21.0
Beam Height @ Tip21.0
Beam Width @ Grip, mm10.5
Beam Width @ Throat, mm10.0
Beam Width @ Mid, mm12.0
Beam Width @ Tip, mm13.0
Number of Main Strings18
Number of Cross Strings20
Ratio.673
Main String Grid Inch/mm7.75/196.8
Cross String Grid Inch/mm10.00/254.4
Density (% of head filled with string).799%
Average Cross String Space.500
Average Main String Space.431
Dynamic
Dynamic Tension, Kp, ERT33
Dynamic Tension, Lbs/in184.57
First Moment, Nm.890
Polar Moment376
Torsional Stability18
Swing Weight, Kg/cm2358
Swing Weight, Ounces12.63
Swing Weight Calculated377.5
Power, RDC59
Control, RDC38
Manueverability, RDC48
Power, Calculated 2259.4
Head Points7.09
Head Weight, %46.8%
Center of Percussion21.5
Dwell Time, ms6.76ms
Efective Stiffness - lbs27.1
K, Lb/In153.85
Recoil Weight178.66
Twist Weight244.25
End Weight 141.2
Tip Weight 210.4
9 O'Clock99.7
3 O'Clock97.2
Butt Cap155.0
COF, Main.332
COF, Cross.296

Now the retail standard racquet

ManufacturerWilson
Racquet ModelWilson Blade 98 v9 16x19 Standard
Reference Tension56
String
PEEK 7710
Machine UsedTrue Tension Pro
Static
String Bed Stiffness - RDC50
String Bed Stiffness -FlexFour58.2
String Bed Stiffness - SBS39.5
String Bed Stiffness - ERT33 Kg/Cm
Racquet Flex, RDC62
Racquet Flex, FlexFour39.5
Racquet - In Plane Stiffness425.5
Weight, Grams328
Weight, Ounces11.57
Balance, mm327
Balance, Inch12.87
Length, Cm68.6
Length, Inch27.00
Head Width9.62
Head Length12.87
Head Area, cm2627.0
Head Area, Sq. Inch97.2
Beam Height @ Grip, mm23.0
Beam Height @ Mid, mm21.0
Beam Height @ Tip21.0
Beam Width @ Grip, mm10.5
Beam Width @ Throat, mm10.0
Beam Width @ Mid, mm10.3
Beam Width @ Tip, mm12
Number of Main Strings16
Number of Cross Strings19
Ratio.629
Main String Grid Inch/mm7.25/184.1
Cross String Grid Inch/mm9.44/239.7
Density (% of head filled with string).704
Average Cross String Space.497
Average Main String Space.453
Dynamic
Dynamic Tension, Kp, ERT33
Dynamic Tension, Lbs/in184.57
First Moment, Nm.827
Polar Moment334
Torsional Stability15
Swing Weight, Kg/cm2318
Swing Weight, Ounces11.25
Swing Weight Calculated350.7
Power, RDC49
Control, RDC53
Manueverability, RDC74
Power, Calculated 1941.4
Head Points5.05
Head Weight, %47.7%
Center of Percussion20.8
Dwell Time, ms6.62ms
Efective Stiffness - lbs27.2
K, Lb/In160.25
Recoil Weight152.36
Twist Weight227.34
End Weight 131.9
Tip Weight 196.9
9 O'Clock92.4
3 O'Clock92.1
Butt Cap144.0
COF, Main.388
COF, Cross.354

 

 

Posted on February 27, 2024 Tue, in Custom Racquets, Customization!, Full Custom Racquets, Racquets, Racquets - New. Bookmark the permalink. Leave a comment.

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