Wilson Jack Kramer Autograph

John Albert Kramer was an American tennis player of the 1940s and 1950s. A World No. 1 player for a number of years, and one of the most important people in the establishment of modern men’s “Open”-era … Wikipedia

• Born: August 1, 1921, Las Vegas, NV
• Died: September 13, 2009, Los Angeles, CA
• Height: 6′ 2″ (1.88 m)
• Weight: 185 lbs (84 kg)
• Education: Rollins College

Manufacturer	Wilson
Racquet Model	Wilson Jack Kramer Autograph
Reference Tension	Not Strung
String	Not Strung
Static Data
ASPS, RDC	0
ASPS, FlexFour	0
Racquet Flex, RDC	32
Racquet Flex, FlexFour	39
Weight, Gram	371.2
Weight, Ounce	13.09
Balance, mm	329
Balance, Inch	12.95
Length, cm	68.80
Length, Inch	27.09
Head Width	8.13
Head Length	10.90
Head Area, sq cm	448.8
Head Area, sq in	69.6
Number of Main Strings	18
Number of Cross Strings	20
Ratio Cross/Main	0.671
Main String Grid	6.30
Cross String Grid	8.80
Density	0.797
Average Cross String Spacing	0.440
Average Main String Spacing	0.350
Dynamic Data
Dynamic Tension, KP, ERT	Not Strung
Dynamic Tension, Lbs/in	Not Strung
First Moment, Nm	0.943
Polar Moment	348
Torsional Stability	11
Swing Weight, Gram	337
Swing Weight, Ounce	11.89
Swing Weight Calculated	401.8
Power, RDC	Not Strung
Control, RDC	Not Strung
Maneuverability, RDC	Not Strung
Power, Calculated	401.8
Head Points	4.72
Head Weight, Percent	47.8
Center of Percussion	19.5
Dwell Time, Ms	Not Strung
Effective Stiffness	Not Strung
K, lb/in	Not Strung
Recoil Weight	145.05
Twist Weight	188.63