Standup Zone Forum
General => The Shape Shack => Topic started by: EastCoastFoiler on March 21, 2022, 10:00:25 AM
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I was curious about flex in my prone setup. I built this setup to Be the stiffest prone foil set up on the planet. Board is solid Divinycell blank with Pilar boxes and 2 x 6 oz carbon plus a few patches.
I ran the following rig to 104 KG to simulate hard riding forces. Rachet strap is providing tension, sandbag is just to stabilize the test. I referenced off a spot on the mast 3mm from the fuse and took angle measurements in different areas before and after load. I repeated once to ensure consistent results.
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Results
My measurement points were Zero on the leading edge of the mast 3 in below the fuse connection, on the front wing right in front of the connection, on the fuse right before the rear wing, leading edge of the mast right infront of the plate, bottom of the board right infront of the plate, and finally a repeatable spot on the nose.
I'm showing 1.9 degrees of overall flex between the front wing and the front of the board. 1 degree of that is between the lower mast measurement and the front of the board. .15 is in the mast itself, and .77 degrees of flex is in the fuse or fuse wing connection.
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Very cool, you geek. Most folks just guess and treat the result as reality. Respect.