Callaway Rogue Driver
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Callaway’s new Rogue drivers – Rogue, Rogue Draw and Rogue Sub Zero – all feature a series of technologies that work together to promote faster ball speed. Two in particular, Jailbreak and X-Face VFT (Variable Face Thickness) technology, support each other in an especially critical way.
THE NEXT GENERATION OF JAILBREAK
Jailbreak’s function, and how it works, remains the same. The bars’ position inside
the head, behind the face, effectively stiffens the body to prevent the crown and
sole from deforming and bulging outward at impact. That changes how the face
behaves at impact, allowing it to focus more energy on the ball. Callaway calls
that “Energy Lensing,” and it promotes more ball speed for longer distance.
What has changed about Jailbreak is the shape and weight of the bars.
Their new, hourglass shape makes them 25% lighter than first-generation
Jailbreak bars. This is important because in club design, every gram that can
be moved to a place where it contributes to enhanced performance, matters.
ENHANCING THE JAILBREAK EFFECT WITH IMPROVED X-FACE VFT TECHNOLOGY
Callaway’s X-Face VFT technology entails varying the thickness of the face in strategic ways and places to help the face
flex faster, especially on off-center hits. In Rogue, we enhanced VFT through a sophisticated optimization process that
consists of successive iterations using finite element analysis to simulate the impact of the ball at more than 100 unique
impact locations on the face. The thicknesses of every point on the face are incrementally adjusted during each iteration,
based on the allowable stress limit of the face material and the face-speed limit established by the USGA.
RESULT: FAST BALL SPEED FOR LONG DISTANCE ON CENTER
AND OFF-CENTER IMPACTS
The overall benefit of Jailbreak Effect in all three Rogue drivers is the promotion
of fast ball speed for long distance from a relatively large area of the face, to help golfers
attain long distance more often, both on center-face contact and off-center contact.