Jeff Grennan has been working on the design of his templates for years.Over the last year NVS has been working with him to add a high performance foil in order to increase the flow and speed of his fins. The Grennan fins are part of the Specialty family.
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.
Fin Size Detail
| Size | Front | Center |
| Medium |
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| Large |
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