Bob Evans
Contributor
Over 20 years ago, I was invited to a special after hours dinner as part of an underwater photography event at the Monterey Bay Aquarium. At the time, I was working with my Assistant, Jimmy Gray, on the Extra Force Fin. While examining the humpback whale model overhead, I had an epiphany. If I could scallop the edges of my Force Fins, I might mimic the highly fluid way in which whales move through water.
![300-extra_force_fin_scallop.jpg 300-extra_force_fin_scallop.jpg](https://scubaboard.com/community/data/attachments/80/80589-aea2ff6a3827f4893710c9fa60f342c4.jpg)
In "Small Beginnings - Leading Edge" commentary in Aviation Week and Space Technology, August 6, 2012, by Graham Warwick, the latest development in helicopter rotor blade design is introduced..... read more in my latest blog entry: Scalloped Edges, Helicopters and Force Fin in Aviation"
Force Fin: Scalloped Edges, Helicopters and Force Fin in Aviation
![300-extra_force_fin_scallop.jpg 300-extra_force_fin_scallop.jpg](https://scubaboard.com/community/data/attachments/80/80589-aea2ff6a3827f4893710c9fa60f342c4.jpg)
In "Small Beginnings - Leading Edge" commentary in Aviation Week and Space Technology, August 6, 2012, by Graham Warwick, the latest development in helicopter rotor blade design is introduced..... read more in my latest blog entry: Scalloped Edges, Helicopters and Force Fin in Aviation"
Force Fin: Scalloped Edges, Helicopters and Force Fin in Aviation