INTRODUCTION
"Scupper", per thefreedictionary.com, it is defined as
1. Nautical - An opening in the side of a ship at deck level to allow water to run off.
2. An opening for draining off water, as from a floor or the roof of a building.
1. Nautical - An opening in the side of a ship at deck level to allow water to run off.
2. An opening for draining off water, as from a floor or the roof of a building.
In kayaking, scuppers drain water per the definition but also act as structure in the "Sit-on-top" versions. The floor of such a small water craft is just a few inches and sometimes less than an inch above the water line. Going out into breakers or conditions beyond, "glassy" can spout water up through these structural holes. While it drains out quickly, it proves noisy and messy. For this purpose, the scupper plug was born.
There are many entries in the kayak industry, this is one I designed for Legacy Paddlesports in 2012.
Starting with the mathematical basics... P=F/A (pressure=force per unit area). In other words, the smaller the surface area, the higher the sealing pressure. Notice the thin rings and it makes sense... Thin ribs will continue to seal in very sandy conditions because the land is so small that the grains are removed from the sealing edge during installation. The tapered ribs also make installation and removal easy while the hollow core allows the plug to conform to grossly misshapen features.
Other key features include the ergo grab handle which is designed to be easy to pull and comfortable to stand on, providing maximum standing area in the boat. If you want to add a tether, just poke a hole in the bottom of the plug and run your tether. The ribs inside provide extra durability and assist with plug removal by pulling the walls in and away from the sealing ribs.
DESIGNED IN THE USA!
Starting with the mathematical basics... P=F/A (pressure=force per unit area). In other words, the smaller the surface area, the higher the sealing pressure. Notice the thin rings and it makes sense... Thin ribs will continue to seal in very sandy conditions because the land is so small that the grains are removed from the sealing edge during installation. The tapered ribs also make installation and removal easy while the hollow core allows the plug to conform to grossly misshapen features.
Other key features include the ergo grab handle which is designed to be easy to pull and comfortable to stand on, providing maximum standing area in the boat. If you want to add a tether, just poke a hole in the bottom of the plug and run your tether. The ribs inside provide extra durability and assist with plug removal by pulling the walls in and away from the sealing ribs.
DESIGNED IN THE USA!
INSPIRATION
SKETCHING OUT CONCEPTS
MODELING THE PART
PROTOTYPING
CHECKING THE FIT
TESTING
PRODUCTION
ACKNOWLEDGMENTS
Special thanks to:
Shane Benedict, Sam Spear, Steve Harris, Kent and the Rotaloc Team.
Thanks to the whole Legacy Paddlesports team for your trust in me and letting me take control and push the limits on this scupper plug! You're all awesome!
Finally, thanks to my wife and kids for putting up with the long hours; I love you!
Thanks to the whole Legacy Paddlesports team for your trust in me and letting me take control and push the limits on this scupper plug! You're all awesome!
Finally, thanks to my wife and kids for putting up with the long hours; I love you!
ABOUT THE INDUSTRY
Here are a couple links to learn about the industry these are used in, check out the competition, read the reviews and hopefully get sucked into this wonderful industry just like I did. Enjoy.