Naish 2015 Force Four

Performance Wave

The new Force FOUR is a 4-batten wave sail that shares the DNA of the Force FIVE. It integrates the best qualities of the Force FIVE - acceleration, power and controlled handling - into a lighter package with a more dynamic, reactive and less “locked-in” feel.

It is designed with a stable and powerful shape that is defined by twin scrim luff panels and a moderate aspect ratio. It also features Naish’s exclusive Carbontech Construction that utilizes the most technically advanced materials available.

The Force FOUR is the ideal sail for riders looking for a lively and lighter version of the classic Force R1.

Sizes: 3.7, 4.1, 4.5, 4.7, 5.0, 5.3, 5.7
  • 4 Battens = Good Stability + more responsive
  • Center Shape = Power + early planing
  • Medium Aspect Ratio = Great handling + wide range
  • Twin X-166 Luff Panels = Solid, locked-in power
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Product Name Luff Boom Head Battens Cams Recommended
Force Four 3.7 356 cm.
140-3/16 in.
144 cm.
56-11/16 in.
vario 4 0 RDM 340 2.76 kg.
6.1 lbs.
Force Four 4.1 374 cm.
147-1/4 in.
148 cm.
58-1/4 in.
vario 4 0 RDM 340 2.88 kg.
6.4 lbs.
Force Four 4.5 388 cm.
152-3/4 in.
154 cm.
60-5/8 in.
vario 4 0 RDM 370 3.06 kg.
6.7 lbs.
Force Four 4.7 394 cm.
155-1/8 in.
158 cm.
62-1/4 in.
vario 4 0 RDM 370 3.11 kg.
6.9 lbs.
Force Four 5.0 412 cm.
162-3/16 in.
164 cm.
64-9/16 in.
vario 4 0 RDM 400 3.19 kg.
7.0 lbs.
Force Four 5.3 420 cm.
165-3/8 in.
168 cm.
66-1/8 in.
vario 4 0 RDM 400/430 3.27 kg.
7.2 lbs.
Force Four 5.7 434 cm.
170-7/8 in.
178 cm.
70-1/16 in.
vario 4 0 RDM 430 3.42 kg.
7.5 lbs.

Standard Clew

Tack Fairing

Roller Tack Pulley

The radial clew is the strongest and lightest design in the industry. A custom titanium ring is connected directly to radial Kevlar load strips via high-tenacity nylon webbing. The Warp Kevlar taffeta leech and foot tapes carry the perimeter loads. Durable molded EVA tack fairing that folds back for easy rigging and protects the sailor’s feet, mast and board. It features a grommet for the uphaul line and a mesh pocket with a Velcro closure for storing the downhaul line. A downhaul pulley that integrates a lightweight die-cast stainless steel housing and low-friction Nylatron GSM pulleys. It provides both standard 6:1 and 4:1 rigging options. This system makes downhauling very easy and reduces wear and tear on the downhaul line. 

6-Ply Batten
Pocket Construction


Downhaul Pocket

Striking a critical balance between light weight and durability, the batten pocket balances the power loads and has scuff protection on both sides of the sail. The unique geometry of our pulley offers both traditional 6:1 AND 4:1 “loop-and-go” rigging.  Secure mesh pocket with Velcro for storing the downhaul line.

Boom Opening
Position Marker

Scuff Protection

The boom opening has a long sleeve cutout for easy rigging, and features position markers that enable perfect boom positioning every time you rig. Naish sails include comprehensive lightweight PVC scuff protection for both sides of the sail.
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Naish 2015 Force FOUR
Price: $ 669.00

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