Force Fin Designs

[Bob Evans]

Back yard 28 Anacapa Street, Santa Barbara, California. Elaine Hyde is glass blowing behind me. I had a plastic drum full of water to test the Foil Force fin I was developing at the time. One year before the other Flat Split designs. The curved back side really held the "Split fin" from opening up like barn doors, which takes place on all others. The water just runs up and out with little energy going to push you forward. But it was not right and had to find a way to start a roll over at the ends to twist open. I had friends with pools at the time so I could test more than a bucket of water. The door to our shop was to the left and we could alsways her the roar from the glass furance.

 

[Bob Evans]

I think it was the Angle Wings that finally opened up to a twist. This Split Fin design could also rotate blade angle. Great for a snorkeling fin. Foil Force Fin – Force Fin

 

[Bob Evans]

I know this Freediving blade was unreal, about 2 feet long and just made one to test thickness of blade. Patented on a Non-Molding method. Susanne sewed this up in her machine. Was very light weight and you could adjust the fins surface to concaved or convex...this changed the flexable surface. 10-3-99 some time ago now. Aqua Corps Cover Story – Force Fin

 

[Bob Evans]

Learning how to weave water.1998. Later used this information for Aerohance Projects. CFD-Research – AeroHance GasPods Project

 

[Bob Evans]

Kind of dropped into Quick Sand opening up dozen of Force Fin file boxes. Have enought to scan for over a year. Looking for a new location to set up shop for the Deep Water Desal project. Will be unloadig some cool diving books along with a Force Fin purchase..Kind of a way to recycle. Meanwhile drifting down with the experimental Extra Force Fin. Notice many Votex generators. Found all the orginial Patent filings and notes/drawings. Legal files with Rodale Press, what a waste of time.

 

[Bob Evans]

Flow Control. Bob Kirby Scallops Away – Force Fin Boxes of drawings, glad to share. Force Fin

 

[Bob Evans]

One of the few times I took the Sperm Force diving. Here Scuba Radio Host Greg Holt caught me a Sting Ray City, Cayman Islands. You just move along like....

 

[Bob Evans]

JANE US Navy Study Efficiency of Best Fins – Force Fin

 

[Bob Evans]

Launching the Imagination. How Bob Evans Revolutionized the Dive Fin – Force Fin

 

[Bob Evans]

My Mentor Bob Kirby always helped steer me in the right direction. Bob Kirby Scallops Away – Force Fin