Hello Guys. My Erik Schulenburg I am the shaper of that double hull surfboards seen on this site, I be back to give you some ideas about the hidrodynamics theory behind my design, If anybody likes to add some feedback It will deeply apreciated. http://www.hawaiiansleds.com
Hi Eric. Nice to have you around. What was the intention behind the hull shape? We where guissing about that in another thread on this board some days ago. http://www.swaylocks.com/cgi-bin/discussion/index.cgi?read=39643 Any feedback from riders so far? 
Hi Eric. Nice to have you around. What was the intention behind the hull shape? We where guissing about that in another thread on this board some days ago. http://www.swaylocks.com/cgi-bin/discussion/index.cgi?read=39643 Any feedback from riders so far?
Hello guys and girls. The lifter(Low Impact forward thuster) was created with few ideas in mind, first I want a board with more floatation but not a thick slow board, That’s one of the things about it, you have a slim line bottom design with more floatation. The other thing I tought about was a hoovercraft, how they plane on water on top of an air cushion pressed by an air compressor, of course you can not do the same to a Surfboard but the closest of that effect would be having a air rail track running underneath the surfboard. And that’s exactly whats happen with the lifter surfboard I dive one day just to see how they would perform surfing the wall of the wave and yes lots of air bubbles run underneath the bottom avoiding water impact against the hull. The effect can be felt on a On and off speed barrier. There’s no draw back except you paddle is a bit harder until you start planning on top of the floaters. any questions let me know. Take care . Erik Schulenburg http://www.hawaiiansleds.com 
Hello guys and girls. The lifter(Low Impact forward thuster) was created with few ideas in mind, first I want a board with more floatation but not a thick slow board, That’s one of the things about it, you have a slim line bottom design with more floatation. The other thing I tought about was a hoovercraft, how they plane on water on top of an air cushion pressed by an air compressor, of course you can not do the same to a Surfboard but the closest of that effect would be having a air rail track running underneath the surfboard. And that’s exactly whats happen with the lifter surfboard I dive one day just to see how they would perform surfing the wall of the wave and yes lots of air bubbles run underneath the bottom avoiding water impact against the hull. The effect can be felt on a On and off speed barrier. There’s no draw back except you paddle is a bit harder until you start planning on top of the floaters. any questions let me know. Take care . Erik Schulenburg http://www.hawaiiansleds.com
Rides feedback. They feel more stable take offs, faster wall cruises, bit harder to turn, more speed overall… http://www.hawaiiansleds.com
Rides feedback. They feel more stable take offs, faster wall cruises, bit harder to turn, more speed overall… http://www.hawaiiansleds.com
The chines on your groove look uniform throughout and fairly hard. What happens if you change the depth of the groove or the hardness of its chines? Or changes to its overall shape?
The chines on your groove look uniform throughout and fairly hard. What happens if you change the depth of the groove or the hardness of its chines? Or changes to its overall shape?
“There’s no draw back except you paddle is a bit harder until you start planning on top of the floaters.” So that’s what it’s meant for… (I myself usually get out of the water if I see floaters bobbing around.)
“There’s no draw back except you paddle is a bit harder until you start planning on top of the floaters.” So that’s what it’s meant for… (I myself usually get out of the water if I see floaters bobbing around.)