MadRac

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Madeline Hauptman invented the MadRaq sometime in the 80’s I believe. You can see by the image the string pattern was unique and the basis of the patent granted to Ms. Hauptman.

You may have never seen a MadRaq and it is not your fault! MadRaq was up against many challenges the least of which was the string pattern! Diagonally strung racquets were not new but the introduction of the “third” string was. I have strung several of these racquets and they are a pain to string compared to standard string patterns. But, that pattern is what made the MadRaq such a delight to play with.

If you look closely at the pattern you can imagine that the strings would last forever since they simply did not move, which in turn did not cause friction, which is the major cause of string breakage.

The side of the racquet is printed with the following:

“Proved superior to conventional stringing in Weldon Laboratory tests by reducing vibration, enlarging power zone, increasing control and prolonging string life”.

MadRaq made available stringing clamps that were much like giant “C” clamps with rubber tips that kept the string from moving after tensioning. I have a set somewhere and will post an image when I find them.

Manufacturer
MadRaq
Racquet ModelMadRaq Graphite 70
Reference Tension45
StringPrince Synthetic Gut 17
Static Data
ASPS, RDC28
ASPS, FlexFour49
Racquet Flex, RDC59
Racquet Flex, FlexFour49
Weight, Gram351.1
Weight, Ounce12.38
Balance, mm322
Balance, Inch12.68
Length, cm68.7
Length, Inch27.04
Head Width9.13
Head Length11.69
Head Area, sq cm540.4
Head Area, sq in83.8
Number of Main Strings14
Number of Cross Strings16
Ratio Cross/Main0.683
Main String Grid8.50
Cross String Grid10.00
Density1.015
Average Cross String Spacing0.625
Average Main String Spacing0.607
Dynamic Data
Dynamic Tension, KP, ERT25
Dynamic Tension, Lbs/in139.83
First Moment, Nm0.868
Polar Moment329
Torsional Stability13
Swing Weight, Gram316
Swing Weight, Ounce11.15
Swing Weight Calculated364.0
Power, RDC49
Control, RDC48
Maneuverability, RDC
67
Power, Calculated1577.2
Head Points6.77
Head Weight, Percent46.9
Center of Percussion19.9
Dwell Time, Ms12.02
Effective Stiffness19
K, lb/in89.74
Recoil Weight145.45
Twist Weight220.89

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