Surfboard fins 757 (Afterburners)
thingiverse
The outline of these fins is a taken from an old fin design called a 757 fin as they are the same basic shape as a jumbo jet wing. i have added 3 slots to the outer fins for less drag? but more because the something new and am nicknaming them Afterburners. I print these upright with the leading edge to the bed and just gave them a lick of varnish for protection. I have rode them but on my second wave snapped them on the bottom turn just above the tabs. They were printed in PLA+ with 50% infill and clearly not strong enough will get back to these once the printed surfboard is finished.
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