Posted: Mon Mar 29, 2010 1:12 pm
Kus, are you planning on bringing in some OES Quads for "demos" in Oregon (or CB)? Maybe one of the larger sizes?
Quad 105 Length 7′11”/ 241cm Width 25”/63.5cm Volume 105L
Quad 100 Length 7′10.5”/ 240cm Width 24”/61cm Volume 100L
Quad 95 Length 7′9”/ 238cm Width 23.25”/59cm Volume 95L
Quad 90 Length 7′9”/ 236cm Width 23”/58cm Volume 90L
Quad 85 Length 7′9”/ 236cm Width 22.5”/57cm Volume 85L
Quad 80 Length 7′8.5”/ 235cm Width 22”/56cm Volume 80L
Quad 75 Length 7′8”/ 234cm Width 21.25′/54cm Volume 75L
Quad 70 Length 7′7”/ 231cm Width 20.5”/52cm Volume 70L
Quad 65 Length 7′6”/ 229cm Width 19.75”/50cm Volume 65L
Quad 60 Length 7′4”/ 223.5cm Width 19.5”/49.5cm Volume 60L
From the OES Website:
"Hi Pete,
I had a chance to ride the quad today in light wind and big waves. logo-mast+ waves, very light side-on wind. It was a very good session, mostly bob and catch waves. The board rips in light stuff. I felt like I was on a surfboard. This is gonna be my light wind killer for the winter season.
Russ
How important are fins on these new quads?
The first set of OES fins were 65mm for the front and 15cm on the back fins with both super fined foils ,to reduce drag a much as possiable and not lose the loose feel that our twin fin gave .While this worked well for sub logo high swell, I felt we need to increase the holding power of these fins in the larger surf without adding too much more drag and lift, so I designed both a 13 cm and 14cm back fin which had a slightly thicker foil of 2mm extra thickness.
While cm/3 surface area and depth of fins give a rough guide to fin size it tell you zero about foils shape and on water performace.Thicker foiled fins add more lift and holding power at lower speed but at a cost of drag.It a fine balance to finding the right amount of lift and holding power at speed which out killing the performace of these boards with too much drag.
So why add more then one fins to a wave board? Basicly we are spliting the total surface area of a single fin and placing it in differant area’s on the tail that will help you hold , turn faster and go upwind with a lot less back foot pressure. The small 65mm front fins on the the quads are all that is needed to help achieve this. As it only there to help the back fins to hold throught the turn better by constantly leading the back fin in the direction of the turn.The front fins is slightly in front of your back foot which again helps you direct the turn.Unlike surfboard quads ,which have the same size fins on all four fins there is alot more side ways pressure from the sail and leg pressure so the back fins have to be larger and behind the back foot slighty to balance this. This adds more balance and drive without the need to constantly trim the turn with back foot pressure as on a single fin .
The smaller depth fin on a quad also stops the fins wanting to hydroplane out of the water once the rail has been set at high speed and causing the board to start bouncing throught turns .
The twins and now the Quad have and will make it a lot easier for a great range of people to wave sail better, and more importantly enjoy it for the first time ,with the board finally going where the rider directs it !!
Pete Ross
Designer"
http://www.oesaustralia.com/2010/03/quads/
Quad 105 Length 7′11”/ 241cm Width 25”/63.5cm Volume 105L
Quad 100 Length 7′10.5”/ 240cm Width 24”/61cm Volume 100L
Quad 95 Length 7′9”/ 238cm Width 23.25”/59cm Volume 95L
Quad 90 Length 7′9”/ 236cm Width 23”/58cm Volume 90L
Quad 85 Length 7′9”/ 236cm Width 22.5”/57cm Volume 85L
Quad 80 Length 7′8.5”/ 235cm Width 22”/56cm Volume 80L
Quad 75 Length 7′8”/ 234cm Width 21.25′/54cm Volume 75L
Quad 70 Length 7′7”/ 231cm Width 20.5”/52cm Volume 70L
Quad 65 Length 7′6”/ 229cm Width 19.75”/50cm Volume 65L
Quad 60 Length 7′4”/ 223.5cm Width 19.5”/49.5cm Volume 60L
From the OES Website:
"Hi Pete,
I had a chance to ride the quad today in light wind and big waves. logo-mast+ waves, very light side-on wind. It was a very good session, mostly bob and catch waves. The board rips in light stuff. I felt like I was on a surfboard. This is gonna be my light wind killer for the winter season.
Russ
How important are fins on these new quads?
The first set of OES fins were 65mm for the front and 15cm on the back fins with both super fined foils ,to reduce drag a much as possiable and not lose the loose feel that our twin fin gave .While this worked well for sub logo high swell, I felt we need to increase the holding power of these fins in the larger surf without adding too much more drag and lift, so I designed both a 13 cm and 14cm back fin which had a slightly thicker foil of 2mm extra thickness.
While cm/3 surface area and depth of fins give a rough guide to fin size it tell you zero about foils shape and on water performace.Thicker foiled fins add more lift and holding power at lower speed but at a cost of drag.It a fine balance to finding the right amount of lift and holding power at speed which out killing the performace of these boards with too much drag.
So why add more then one fins to a wave board? Basicly we are spliting the total surface area of a single fin and placing it in differant area’s on the tail that will help you hold , turn faster and go upwind with a lot less back foot pressure. The small 65mm front fins on the the quads are all that is needed to help achieve this. As it only there to help the back fins to hold throught the turn better by constantly leading the back fin in the direction of the turn.The front fins is slightly in front of your back foot which again helps you direct the turn.Unlike surfboard quads ,which have the same size fins on all four fins there is alot more side ways pressure from the sail and leg pressure so the back fins have to be larger and behind the back foot slighty to balance this. This adds more balance and drive without the need to constantly trim the turn with back foot pressure as on a single fin .
The smaller depth fin on a quad also stops the fins wanting to hydroplane out of the water once the rail has been set at high speed and causing the board to start bouncing throught turns .
The twins and now the Quad have and will make it a lot easier for a great range of people to wave sail better, and more importantly enjoy it for the first time ,with the board finally going where the rider directs it !!
Pete Ross
Designer"
http://www.oesaustralia.com/2010/03/quads/
