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Armstrong PERFORMANCE 655 MAST

Home / FOIL / FOIL KITS / ARMSTRONG
  • LIFT FOIL BACK WING - 38 SURF V2 -Surfing Gear Sale Back 38Surf 460c1d36 6c1c 4d0c 82b3 3a246a2d8471
  • Armstrong Fuselage TC60cm (23.5") A+ System -Surfing Gear Sale tc fuselage main 2 4d60c3d7 4b51 44db 966d 507fc113e3a6
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Armstrong PERFORMANCE 655 MAST

$309.00 Original price was: $309.00.$96.99Current price is: $96.99.

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SKU: CG9ZZ 6864717774950 Categories: ARMSTRONG, FOIL, FOIL KITS Tags: Armstrong, Best hydro foil, FOILING, MAST ARMSTRONG, PERFORMANCE 725
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PERFORMANCE 655

Ideally balanced performance for wing, prone surf, SUP surf and downwind. 


Development

“As the sport develops, riders push themselves and the equipment to the limits. After listening to feedback, we wanted to develop a new, innovative, ultra high-performance mast that minimizes drag and ventilation while also being stiffer and even more responsive.” – Armie Armstrong

Collaborating with a team of America’s Cup foil engineers, we set out to develop a high performance mast to take us into the future. Our design goal called for a unique blend of strength, stiffness, drag and light weight. Combining CFD analysis with expert insight allowed us to tune each section of the mast from baseplate to fuselage connection for maximum efficiency.

“Working with the latest premium composites available, we torture tested over 100 prototypes to work out the optimal fiber orientation for strength and designed flex. In keeping with our philosophy of strength and light weight, we redesigned the mast top geometry to shave off every possible extra gram of dead weight.” – Armie Armstrong

Structural analysis shows that a combination of both high modulus (HM) and intermediate modulus (IM) carbon fibers best distributes loads throughout various sections of the mast. HM’s stiffness minimizes flex in the mast’s central strut area and IM’s high tensile strength caters to the complex shapes of the top plate and fuselage connection.

The result is a top of the line mast consisting of top shelf materials, new mast section, refined baseplate, reduced drag fuselage connection and new construction method. Proprietary titanium M7 mast top hardware follows suit with a strong, light and drag reducing connection to the board.

These masts are designed with a mast rake angle. This fine tunes the board angle relative to the foil for a more comfortable and forgiving ride. It does not change the lifting force or balance of the foil itself, and it does not impact the foil’s “foot pressure” bias front or back. Board rocker also directly determines effective mast rake – boards from different brands have a variety of different rocker lines which influence rake angle – and more rocker in the rear half of board effectively increases mast rake. The 1 degree of rake we’ve placed specifically into the top of the Performance Mast shape provides three main benefits by adjusting the board relative to the foil underwater:

  • By bringing the foil closer to 0 degrees when the board is in the water, drag is reduced which makes takeoffs easier.
  • Touching down at speed or landing a jump is more forgiving and there’s less chance of crashing headfirst over the board.
  • By lifting the board nose slightly (1 degree = 17.46mm/m), mast rake makes it easier to ride fast without catching the nose at steep riding angles.

Simply put, the Performance Mast range takes the sublime Armstrong feeling further than ever.

Recommendations

WING
PRONE SURF
SUP SURF
DOWNWIND

Specifications

Length: 795mm
Weight: 1745g

Includes protective bag and Hardware: 3*M6 28.5mm titanium-plated countersunk head screws + 5*M7 T-nuts + 5*26.4mm M7 316L (titanium-plated countersunk head) CSK Screws + 1*8mm Titanium Barrel nut + 1*S2 naked Zn-Ni coating torx tool. 
Please note that for some 3rd party boards with deeper boxes, you may need to purchase 30mm M7 hardware available on our hardware page.

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