XPHLEXXX LongDrive Shafts

 www.XPhlexxx.com

THE BUSA: Starting at $299.99

THE BUSA …. CREATED FOR ONE PURPOSE … TO GIVE THE MOST POWERFUL HITTERS IN THE WORLD THE MOST TECHNOLOGICALLY ADVANCED LONG DRIVE SHAFT POSSIBLE USING MATERIALS AND CONSTRUCTION TECHNIQUES NOT USED IN THE LONG DRIVE ARENA … UNTIL NOW

COMING IN 2 DISTINCT LIQUID VERSIONS – XPHLEXXX DELIVERS A SHAFT CAPABLE OF TRANSFERING MAXIMUM POWER COMBINED WITH UNMATCHED DISPERION AND SPIN CONTROL. THE END RESULT OF OVER A YEAR’S WORTH OF TESTING AND ENGINEERING, THE BUSA IS DESIGNED TO HANDLE THE EXTREME SPEEDS AND TORSIONAL FORCES EXERTED THROUGHOUT THE ENTIRE SWING DURATION – AND AT THE SAME TIME – ALLOW FOR TOUR CALIBER FEEL & FEEDBACK DEMANDED BY THE MODERN ERA COMPETITIOR.

MATERIALS USUALLY RESERVED FOR THE MOST EXCLUSIVE TOUR GRADE SHAFTS AND JAPANESE EXOTIC SHAFT HOUSES WERE THE ONLY OPTIONS CONSIDERED ACCEPTABLE WHEN THE FINAL DESIGNS WERE CONCLUDED. BUILT UPON ALL NEW LONG DRIVE SPECIFIC PROTOTYPE MANDRELS, THE ENTIRE XPHLEXXX LINE CONSTRUCTION IS COMPRISED OF 74% ULTRA SHEER 40TON CARBON FIBER (25% RESIN) , 11% FULL LENGTH LIQUID CRYSTAL POLYMER (5X TIMES STRONGER THAN STEEL) , AND A MIXTURE OF LOW RESIN 36T / 30T / 24T CARBON. THE UNIQUE PROPERTIES OF THE LIQUID CRSYTAL LAYER ALLOWED US TO ACHIEVE ULTIMATE CONTROL AND CONTAINMENT OF TORSIONAL LOSS OF POWER OVER THE ENTIRE LENGTH OF THE SHAFT – RESULTING IN STORED KINETIC ENERGY BEING DELIVERED TO THE BALL AT IMPACT. THE RESULT – INCREDIBLE SHAFT STABILITY AND UNMATCHED BALL DISPERSION, EVEN AT THE MOST EXTREME SPEEDS.

SO WHAT DOES THIS ALL MEAN ….

PUT SIMPLY … THE BUSA WAS DESIGNED TO DO ONE THING : TO FULL UP THE GRID .. AND GO A LONG, LONG, LONG WAY WHILE IT’S DOING IT

IT’S NOT JUST PAINT …. IT’S TECHNOLOGY

Bombtech Golf

Driver Design ProcessAs told by University of Vermont Engineering students

WWW.Bombtechgolf.com

 

We began by creating a problem statement to give our team a focused goal of what a successful design consisted of for this project and to provide guidance.

The problem statement: BombTech Golf wants a radically new golf driver head to be sold to the public. The driver head must adhere to USGA standards and must not infringe on any existing patents. It should have a loft of 10.5 degrees, be compatible with common shaft sizes and should be designed with the average golfers’ ability in mind. Wind-tunnel testing and CFD modeling should prove that this new head is aerodynamic while offering a large sweet spot. The driver head design will be manufactured out of a Ti-1188 titanium. Samples will be tested to provide physical data as well as user tested and graded to insure that a high quality club has been created.

Generating Ideas

To gain some general ideas and a starting point we researched patents and prior art for “aerodynamic” woods that had already been designed. This led us to club heads with dimples, channels, and grooves. We realized that a club head with a feature that reduced drag such as a cavity, such as these patents, would be more innovative and visually appealing than simply creating the most sleek club head possible.

We researched cars, boats, and trucks to see how they tried be more aerodynamic. We found our answer with trucks. A truck, like a golf club, has a large front surface that increases drag and cannot be streamlined like a small sports car. Everyone has heard the myth that you get better gas mileage with your tailgate up. This has been proven by different entities, most popularly Mythbusters. The tailgate creates a pocket of air to form in the bed of the truck which lets the oncoming air to travel over it instead of diving into the bed of the truck creating drag. We believed we could do something similar with a golf club head by making cavities in the sole of the club.

It was decided that two cavities was best to keep the center of mass directly behind the center of the club face. We created a 3-D model of a club head in SolidWorks, a Computer Aided Drafting (CAD) program. In this program we were able to use a Computational Fluid Dynamics (CFD) simulation to test different shaped cavities. We performed some simplified calculations to get a rough number for what our drag force should equal to prove the CFD models were accurate. We then began running dozens of tests to find which shape, depth, and angles of the triangles created the least amount of drag.

The Numbers

In order to make certain that our CDF simulations were accurate we analyzed the drag force on the club using the following equation:

The density of air is known. The drag coefficient is based on a geometrical assumption and therefore also a known constant of 1.17. Since the density of air and the drag coefficient are intrinsically predetermined, we wanted to be very precise with the projected area. Using the maximum allowable face dimensions, we arrived at an area of 0.0070939047m2. It is important to have this many decimal places, as it is a multiplier of the entire equation. We also decided on a club velocity of an average amateur golfer (85mph). This is an arbitrary number as long as we use this value for all testing, both physical and computational.

Fd = 7.21N This value served two purposes. It gave us a reference number allowing us to be certain that our simulations were accurate. 7.21 Newtons also served as a target maximum. Since the projected area was exaggerated our drag values at 85mph should fall below this mark. We were pleased when our simulations of our most aerodynamic design (now the GRENADE) was returning drag values of just above 5 N, well below our calculated maximum of 7.21 N
Starting at $219.00
Grenade Club Head Specs: 
Face Material: Ti-1188 hardened titanium
Hosel Depth: 38mm
Weight: 199 grams
Face Angle: 0*
Size: 460cc
Lie: 59*