try to put a bit less rocker next time

id still like to see how it goes backwards, obviously the fin would need to be sorted.

just thinking about all the streamliner cars, and aircraft etc.....COD

Serg

husq2100 said...

id still like to see how it goes backwards, obviously the fin would need to be sorted.

just thinking about all the streamliner cars, and aircraft etc.....COD

Serg

It goes very fast in all directions, backwards, forwards, upside down, whatever..... but its particularly fast the way is was designed to go.....funny about that

RMAC said...

Looks like it flys....what sort of top speed can you maintain..

Weather has been too windy for a proper speed evaluation so far.
Going to windward is silent, it just knifes through the chop...very enjoyable to paddle.
At this stage it is clear that it takes a lot less effort keeping the thing at an elevated speed compared to the 14'

LSD and DJ ,that nose fin . I can't think of any craft I've ever seen having one of those. Not criticising but is there a good reason for it. I can't think that it would yaw at all at that length . What about cutting the nose fin off and putting a fin box in , so you could fine tune the size and shape of the nose fin .

log man said...

LSD and DJ ,that nose fin . I can't think of any craft I've ever seen having one of those. Not criticising but is there a good reason for it. I can't think that it would yaw at all at that length . What about cutting the nose fin off and putting a fin box in , so you could fine tune the size and shape of the nose fin .

Logman,
Standup paddle boards are quite unique, What other craft is propelled by such an asymmetric paddling method?
It does yaw more without the fin, & it will yaw less with a bigger fin, its a matter of how straight you want to go?
Any yaw off to either side is directed foward....producing more speed...with less effort.....if you want to go somewhere & fast...... that must be good?

Trying to fit a 25mm wide fin box & crap in bow 20 mm wide?.....now that would be pointless, besides the added drag disrupting laminar flow along the boat....no I dont think so.
Fine tune? Its not a high speed sailboard.....its a paddle board that has a blade on the bow to maintain the intended direction..........& it does that very well, going bigger or smaller in fin size will have a relative result.

LSD said...

husq2100 said...

id still like to see how it goes backwards, obviously the fin would need to be sorted.

just thinking about all the streamliner cars, and aircraft etc.....COD

Serg

It goes very fast in all directions, backwards, forwards, upside down, whatever..... but its particularly fast the way is was designed to go.....funny about that

thanks for discussing it further....

Hi LSD and DJ , I'm still not sure of the science behind the front fin . Do you mean ,by assimetrical power source that a C1 paddler wouldn't face the same problems as the your boat . I've never seen a front fin on a C1 ( I have been wrong before!!!) . Here's a plan, get that thing sanded, nice and shiny then make a mold of it . I recon half the people on this site would love one . Maybe you could have your own class like " Hobie " or " Mirror" . We could even have bay races in our new " Formula LSD's".

LSD was it you who said in an earlier thread that you could pump these things out for a few hundred bucks each? About $250 if I recall correctly?

If so are you taking orders? I'd happily pay over that too. There is a definite need for sub-$1000 SUPs of reasonable quality. Respect to the big brands for all the R&D they do and developing the sport but the pricing is out of control and makes it very difficult for me to recommend the sport to anyone who isnt Scrooge McDuck. Especially if they're not a hard core surfer or waterperson.

Ya see what I mean LSD !!!!! There gagging for it . I'll be happy with my normal 10% fee . Thank you

Lobes said...

LSD was it you who said in an earlier thread that you could pump these things out for a few hundred bucks each? About $250 if I recall correctly?

If so are you taking orders? I'd happily pay over that too. There is a definite need for sub-$1000 SUPs of reasonable quality. Respect to the big brands for all the R&D they do and developing the sport but the pricing is out of control and makes it very difficult for me to recommend the sport to anyone who isnt Scrooge McDuck. Especially if they're not a hard core surfer or waterperson.

Did I say that...? Well the 20' board cost around $300 in materials. (including carbon uni) My labour cost....now thats another story.

Cost of Material = $300
Cost of Labour = $1000
Knowing you have the fastest board on the planet = Priceless

Exactly..

It needs to be kept imac.. So that one day it can be hung on the wall in a SUP museum..

Here's a pic looking over Dean's shoulder as he whips up another beauty.

DJ

JonathanC said...

I had a paddle on the board yesterday too. I've paddled 16 and 14' boards and own a 14' Penetrator - all designed for open water and wave so with rocker. As far as flat water speed for paddle input this board is in a completely different league.

It's 26" wide but very stable, I'm sure for me at 67kg I could go to 25 or 24" without a real problem.

About the front fin? I'd really like to chop it off and try without it because my gut feel is that it does help the board track very slightly straighter but I think the very fine entry probably does that pretty well anyway. I think I'd rather trade off a little arrow straightness for a little more steering ability.

Front fin or not, the thing is absolutely gobsmackingly good!! Well done Dean and thanks for the chance to try it.

I thought canards are a smaller fin that's just before the larger fin.

They try and direct the flow in a better direction over the larger fin.. or wing.. Some fighter planes even have them.

I guess even on a plane thay can go way up the front..

DJ

.

On some aircraft the canard is set to a different angle of attack to the main wing so that the nose stalls before the main wing. It's a safety feature for very manourverable aircraft.

en.wikipedia.org/wiki/Canard(aeronautics)

All this begs the question of why do you need a fin at all on something as long and skinny as the 20' SUP. Presumably in smooth water it's going to be very directionally stable.

Sailboard history is full of silly fin (and sail) ideas that came and went. They lasted one season until the designers worked out how to make fins properly and went back to a properly foiled fin. (Remember fence fins and slotted fins and kanga cocks and cutaway sails?)