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Hoyt's new Formula Series- The Details

Team Hoyt

10/19/2009

Hoyt's most advanced design ever

At Hoyt, it’s always been our passion to seek ways to improve on the status quo.  Whether that is in design, materials, aesthetics, feel, or other important areas, we’re always looking for ways to make things better.  Given that philosophy, it’s a testimony to the quality and genius of our original, patented Hoyt Dovetail System (HDS) that it has been around for 25 years now.

Innovation is at the very core of our company.  Hoyt has generated more innovation in recurve archery than all other companies combined, including the world’s first carbon limb skin laminates (1974), first carbon limb laminate elements (1975), first bow stabilizers (1964), first TFC’s (1967), first V-bars (1975), first carbon-bias-stabilized recurve limbs (1976), the first syntactic foam core materials (1985), and countless other innovations. 

And, now, the Formula System joins that long list of Hoyt innovations.

The Formula series is designed as an integrated system- a complete bow designed from the ground up for performance, balance, accuracy and quality. 

When we set out to redefine competition recurve bows with the Formula System, we looked at all of the properties that led our patented Hoyt Dovetail System to become the most-copied design in recurve history, and asked ourselves, “how can we make this better?”  The result of that question, combined with the most intensive R&D effort in the industry, yielded the all new Formula Series.  Integrating the riser and limb for tighter tolerances and better-managed stresses, the new Paralever System on the Formula Series intercepts vibration and adjusts the limb flex pattern, yielding the smoothest and fastest Hoyt recurve ever. 

Equipped with an even more precise version of the proven Hardlock alignment system, and an expanded fully Hoyt-compatible set of grip options, the Formula RX riser shatters the barriers of previous design to generate a platform for the swiftest, smoothest most accurate recurve limbs ever. 

It’s also one of the most durable and precise risers ever developed- with the same 1500 dry-fire survivability and millions of test shot cycles required of all Hoyt risers.

The unique mounting system on the Formula RX riser also allows for decreased overall mass and a smoother shot reaction.


Powering the Formula System is a choice of two all-new, premium limbs- designated F4 in syntactic foam, and F3 in laminated wood cores.

These smooth and incredibly swift new limbs feature a new tip geometry providing for substantially enhanced velocity- Hoyt’s fastest limbs ever.  They also feature radically strengthened materials ensuring the ability to withstand more than 500 full-on dry-fires, more than one million shot cycles with no performance change, and unmatched torsional and vertical stability. 


Innovative, all-new x-carbon multi laminates and the new Hoyt Paralever system reshape the limb stress curve for unmatched smoothness before the shot, and helps manage vibration after the shot with more than 40% less limb stress in the critical riser interface area.  The result is increased smoothness in the clicker zone and up to a measured 4 FPS velocity advantage over any available recurve limb today. 

The sleek, redesigned limb tip increases strength and alignment accuracy and also adds to velocity through an adjustment in critical string leverage at full draw.

Mounting a damper (for example, a Doinker with a weight) using the patent-pending Limb Dampening Bushing on the portion of the limb within the Paralever system means there is no speed loss penalty from this vibration reduction method- yet it is far more efficient than either riser-mounted dampers, or performance-robbing "stick-on" type dampers.  Shooters who prefer a sharper feel can simply omit the use of a damper.  Either way, the Limb Bushing allows optional use of a top rod if desired.

The linear, dynamic shot reaction, low vibration and noise, and superb accuracy are just a few of the benifits of this integrated, total system.

We hope you will take time to get directly acquainted with this new pinnacle of Hoyt recurve technology and see for yourself, why Formula is truly a step beyond the state of the art.

 


Formula System Technical Specifications

Formula RX Riser Mass Weight

27” Riser: 2.87 lbs or 2 lbs 14 oz. or 1301 grams, 68-70-72"
25” Riser: 2.62 lbs or 2 lbs 10 oz. or 1188 grams, 66-68-70"

Static balance:  Neutral, CG is 0.250” behind pivot point

Flex pattern:  Hoyt Isolinear flex pattern

Alignment system- Hoyt Hardlock, .005” increments available (2 x .005" spacers included in riser kit)

Limb attachment system- Hoyt Paralever system with about half the interface stress of the standard Hoyt Dovetail

Limb Systems

F4 Crossweave-Carbon Foam, 22-50# S-M-L.  Multiple layers of unidirectional and custom-designed crossweave carbon fiber increase speed and stability.  Carbon X-foam syntactic foam for the ultimate in performance.

F3 Carbon-Wood 22-50# S-M-L  Same carbon layup as the F4, in a smooth and quiet wood-core option.

Suggested Brace Height Range:
66”- 8.5-8.8”
68” 8.75-9.125”
70” 8.875-9.25”

Note: Your preferred brace height may vary from the above guidelines.

Suggested string material: D75, 8125, Majesty or equivalent
20-30# 14 strands
30-40# 16 strands
38-48# 18 strands
44-52# 20 strands

0.3-1.0 twists/inch recommended, some shooters use more.

Grip inter-compatibility: Ergo (plastic or rosewood), Ortho (rosewood), X -grip (laminated wood), Formula High Wrist Grip(laminated wood).  Formula comes with the X-grip as standard (formerly known as the GMX grip).


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