Jeff Grennan has been working on the design of his templates for years. Over the last year we’ve been working with him to add a high performance foil in order to increase the flow and speed of his fins.
Jeff’s idea was to pair a narrow base with increased rake in order to decrease drag while retaining control down the line and through turns. And boy was he right; his template has become a favorite in the San Diego glider scene and is used by the likes of Skip Fry and Bob Mitsven as well a tons of others.
Base: 3.84 inch
Height: 4.60 inch
Area: 14.11 square inch
Foil: Flat SeriesIII
The Grennan fins are part of our Apex Series lineup. Apex fins are made with precision foiled G10 fiberglass; G10 is made by compressing layers of fiberglass and epoxy resin and baking it an autoclave to have the maximum strength of any fiberglass available.
NVS Apex G10 Solid Fiberglass Fins: The Pinnacle of Performance.
What makes NVS Apex G10 solid fiberglass fins the best in the world?
Better Material: We use G10, an industrial grade fiberglass which is manufactured to the highest quality standard. Made by heating special fibers with epoxy resin under intense pressure in order to make a perfect panel; we’ve eliminated the errors which can occur by using a hand layup. By heating the fibers and resin under pressure we are left with the ideal resin to fiber ratio in order to maximize strength and decrease weight.
Now that each fin contains more fiber we’re able to foil the fin thinner to in order to decrease drag and save even more weight without compromising the structural integrity.
Better Foiling: Along with the thinner foils we use a very specific foil that was derived from a series of NACA foils whose purpose was to increase laminar flow (speed) while decreasing turbulent flow (drag). This translates to a fin that allows for faster/easier generation of speed and has a wider angle of attack, which means you won’t lose as much speed while bottom turning or going through hard cutbacks. Precision machined foiling yields the most accurate foils available on any fin type or construction; why do you think a vast majority of big wave fins are machined, not molded?
The combination of spring from the epoxy infused G10 fiberglass with the hydrodynamic foil allow for easy generation of speed while maintaining control in all conditions.
Better Manufacturing: By using cutting edge CNC machines and precise designs we machine cut each fin in order to have the perfect foil and finish. All NVS fins are designed 100% in house using advanced 3D software.
This is what makes the Apex Series G10 fins the strongest most high performance fins in the world.
Of course performing better than anything on the market isn’t enough for us so we left these with a unique and sexy tree ring finish that is sure to turn heads.