What is Air Core?
Air Core (AC) is Doyle Custom's unique, proven sailboard construction.  No board company handcrafts light-weight sailboards with the hollow construction technology engineered by John Doyle, owner and shaper. No other board possesses the durability and performance characteristics allowed by the hollow Air Core construction processes.

Why light-weight sailboards?
Efficiency - they hop on plane quicker, accelerate faster, plane longer.
Jumping - they go higher, loft longer, and steer better mid-air.
Control - they have a crisp response to foot maneuvers.

Why hollow sailboards?
EPS DESIGN FLAWS .  EPS is the soft, white foam most often used to make light boards. EPS serves one purpose: a core around which a builder will make his board. In every other regard, EPS is a poor performer. EPS is fragile, will absorb water, break down from impacts, and readily delaminates.  Its structural weakness makes EPS the weak link in a board's foam configuration.

"SANDWICH" BOARD FLAWS.
In addition to using EPS, sandwich boards have tender rails. A "sandwich" is like an OREO COOKIE: it's hard on the top and bottom, but soft in the middle. There is little structural support to protect rails form heel pinching, jump flexing, or impact crushing.

DOYLE Custom's AC series
The only board construction to offer:

• Single foam construction using only high-density, PVC foam
• Half-inch high-density PVC foam decks, rails, bottoms
• "Ceiling to deck" center and side stringers made of high-density foam
• Mast and fin boxes "boxed" into high-density PVC foam

The real story behind EPS

• Stress and yo-yo dieting contribute to a vicious cycle of fractures, seepage and fatigue in EPS
• Eight-or quarter-inch PVC decks and bottoms bust and delam
• "OREO" rails and EPS cores wear down: more delam and cracks
• EPS fin-mast box cavities wiggle loose: more water

509-493-1489    email:  doyle@gorge.net    web:  www.doylesports.com
P.O. Box 828  Hood River, OR  97031