Facebook posts: Damian Coase

What works and what doesn't. Share design ideas, references and contacts for paipo board builders.
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bgreen
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Facebook posts: Damian Coase

#1

Unread post by bgreen »

17 May, 2022
https://www.facebook.com/groups/paipobe ... 245895080/
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the boards we are riding are very much influenced by kneeboard design. It seems that prone/bellyboard surfing around the world falls into three main groups, bodyboarders who are looking for a new challenge, wooden paipo and bellyboard riders who are expanding the boundaries of what their craft can achieve and stand/kneeboard riders who are broken and just trying to get back in the ocean. Of course this is a generalisation and there are many others. Steve's new prone board is quite sophisticated with chine rails and super hard edges through the triple flyer swallowtail. Made from stringerless epoxy it is light and looked very fast and responsive. He was using more upright and pivoty hanalei fins than the split keels we use but maybe he is further down the development path than Don and I. I'm sure he would be happy to share his knowledge with you.

Bob Green
In terms of the types of people who rise paipo/bellyboards, I'd add a 4th group - the curious. People who are exposed to prone surfing and think they'd like to give it ago. Tom Wegener would have influenced people, more people are exposed via occasional magazine or net stories and even bodyboarders,
who have wanted to experience history first hand or experiment.
In terms of board development, my idiosyncratic way of looking at it is to see 4 broad streams.
1) traditional boards around the world, which may had limited use outside that area and perhaps even were used for a limited period of time. The alaia is the most influential and sophisticated of these boards.
2) the British style bellyboard which is having a resurgence in popularity but also there is some experimentation with materials, but the dimensions are fairly standard.
3) the Hawaiian paipo board, which was essentially an extension of bodysurfing and adept at planning at speed and drawing long lines.
4) Wally Froiseth's twin finned board, with handle, which was developed in the 1950s and was replicated in the USA, Australia and elsewhere.
Skip Newell who was involved in the 60's/70s Newport boards, drew inspiration from Hawaiian paipo boards. Paipo boards in Hawaii were ridden prone, kneeling and standing up. Paipos and bellyboards were a transition for many early kneeboarders.
Greenough took design in a different direction for kneeboards and surfboards in general.
Currently there is a also some cross-over between stand-up boards, kneeboards and even bodyboards and what people ride prone, though this is very idiosyncratic.
Besides wood versus fibreglass, the other important dimension is finned versus finless.
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19 July 2022
https://www.facebook.com/groups/paipobe ... 625180080/
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5 7 by 23 and a quarter. 13 inch swallow tail.

Keith Usher
those look like knee board dimensions

Damian Coase
definitely but for a little guy. My last couple of kneeboards were 6 3 and 6 5 by 23 and a half. As I can't really paddle any more, paralysed right arm due to spinal injury, I find I need a fair bit of volume to actually kick onto a wave. I'm also 100 kgs.

Keith Usher
how do you duckdive? ever seen Bethany hamilton with her handle?

Damian Coase
my right arm is partially paralysed but I can lift it enough to duck dive smaller waves.I also have a handle for going over whitewater and if a big one comes “abandon ship ”.

Bethany is amazing but she started when she was 15, I’ll be 67 next month. Still having fun which is what it’s all about.

Damian Coase
stinger is up in line with the front fins. It will be interesting to see how it goes.

bottom has a bit going on.
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John Whiting
Is the deck concaved? if it is, is it for your body to lay in?? kinda like the idea of the old Greenough spoons?? or is flat and I'm seeing things.. haha\

Keith Usher
Its interesting that is you look at board position while riding it pointed down the face of the wave and spmwhat out into the flats. and with wanting to be on the inner rail side ot the board concaved deck is going to make it harder to be over on the rail, I find a domed deck makes more sense.

Jai Baker
Concave decks should be more responsive as the side comes up into your toes , heels when standing or sides of body to lay against . That with a low rail the vee bottom on Pino’s board make for an easier rail to
rail transfer .
I’ve been riding boards just like Pino’s for a long time now . I’ve made flat deck ones , Pu shapes too that didn’t feel the same . Also the deck shape is what gives my stringerless eps shape it’s positive flex and strength .
Hope this all makes sense . I’m sure someone out there has a variable to what I’ve found in my crafts but that’s all apart of design I guess .


Don Boland
I am jealous hope I get a go?
On the topic of design my main aim is to have equipment that suits the waves we ride so we maintain the “Stoke”
PS would be great to hear from somebody like Steve Artis ,Peter Ware perhaps,I am sure their knowledge would be no burden

February 12, 2023
https://www.facebook.com/groups/paipobe ... 058650080/
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it’s fantastic, still gives me speed, positioning in the pocket and main thing is fun'

Bob Green
Is the narrower tail/wings so you can kick from further forward, rather than hanging off the tail. Don's boards were noticeable for the narrow, pulled in tail.

Damian Coase
yes I guess so, still 13 to 14 inches wide. It's all about the outline curve. The photo also over accentuates the curves a little.

Keith Usher
interesting tail scoop on the tail of the far right.

Damian Coase
that one is designed for an open ocean wave nearby that can be really bumpy. Greenough edge bottom and flex tail.

it tracks a little with the edge bottom but I'm working on the fin size, rake and placement. Definitely helps with the bumps and loves a late take-off. Still so much to learn about these boards.

Daniel Nel
The Yellow and Grey Parker. How does that one go ?? Somehow i like the shape

Damian Coase
That's my latest epoxy Baker board and I love it. Draws a bit longer line than the yellow one but the flyer makes it manoeuvrable. Still learning its secrets but enjoying the ride

going prone has so many advantages 😉. It's fun and you can catch lots of waves. A hull bottom with a big single concave and chine rails looks very appealing. The experimentation and design possibilities gets my surfing brain excited.

https://www.facebook.com/groups/paipobe ... 056005080/
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it's to replace my first bellyboard which is 5 foot 6. Much more refined.

it's a 5 foot 5 inch by 23 inches wide. Surfed it again today and it is flying.

I'm 100kgs with a partially paralysed arm from a spinal accident so I need something that floats me a allows me to catch a wave. On a wave my legs and flippers are hanging off the back of the board.

18 October, 2023
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Last edited by bgreen on Tue Jul 23, 2024 7:24 pm, edited 6 times in total.
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Re: Facebook posts: Damian Coase

#2

Unread post by bgreen »

December 28, 2023
https://www.facebook.com/groups/paipobe ... 416660080/
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Jai Baker
laying right across your board is kinda hard to engage your pivot point when turning . Don and Pino like surfing the board not dragging much leg and turning the board . So when you surf a board like this your trying to push into a pivot point and theirs is more from the hip area .
The rails , fins and vee all work to try and give speed but still create that turning point they want in good open face peeling waves that we get around here .
A hard thing to achieve I think compared to stand up or Kneeboard where your up right and can manipulated where you place your weight up and down your board compared to laying all over your board pretty much from nose to tail .
I personally prefer finless .

Experienced paipo riders may better understand this, but I've determined that I'm able to make cleaner turns using pressure on my knee/thigh than with my arms. At 5'11" I think that means I need a board roughly 5' long for my knees to be in contact with the tail while in trim. Not being able to quickly shift weight forward and back is a downside to the longer boards. When my weight is forward and I'm in trim my feet and legs I sometimes get knocked off despite having a concave deck. That doesn't happen with a shorter board (like my 41" bodyboard) because my legs arent on the board to begin with. With my legs/body hanging off the side of the board it's a matter of just hanging on until I can claw myself back onto the deck. It gets hectic at times. The question is, does the deep vee and forward fin position I see on this board allow for using the arms to make a clean turn with acceleration?

wonder if those little stick on fins that came out a while back would help you . They looked about 2 cm deep and you can stick 4-5 right across the exit edge of the board . They might have been smaller , I never actually seen them in the real .
Behind Pino’s last board is a deep concave either side of the vee with a bladed fluted rail . Plus the rails the whole way and concave Vee all help it be put on rail easily . He tends to go with only two fins last we spoke giving up hold for speed and turn ability so must be ok for rail hold which says something for a light weight epoxy also .
Yours might have too much foam out the exit with too much lift , you want the last third of board to bite into the face .

and then there is the twinzer fins that Jai has been using a lot lately. These look very interesting for a prone board, get you changing direction quickly and according to Jai, super fast. Maybe time for a new board.

Damian Coase
Don and I have played with fin size, shape and positioning extensively. Tried over 20 sets of fins and found, in our case anyway, that small quad or twin fins placed up the board under your drive, which is normally your hips, work for us. Fins on the tail of the board seem to drag through a turn rather than initiating it. One of the great things about this discipline is the variety of surf craft and the ways that they are ridden.

so many variables, my Baker has hooked rails in the tail, definitely work like fins.

Jai Baker
Fluted is where you shape the volume out of the rail from the top leaving a step then a finer bladed rail . Where we do this the deep concave underneath hooks down , a hooked flyer could also be made with a channel underneath too I guess .
All adjectives to try and let us visualise I guess . Who cares what we are meant to call it I say . I’m probably wrong in someone’s mind out there ! Haha 😜
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Damian Coase
ah the twinzer surfboard. We need to correspond with Peter Ware about the original ground breaking 4 Fin Friar Tuck kneeboard. Lots of vital information stored in his brain. Some say the original and the best.

Jai Baker
the Kneeboard twinzer leaders looked like they had a far bit more toe in to the stringer than the big trailers which looked weird to me but I guess the further up you go the more they toe in to get that centre nose angle … just starts looking a bit snow ploughish I reckon

Elijah Baley
Kneeboards turn much better with fins forward, it should be the same for prone boards (I guess).

Jai Baker
Yeah thats pretty much it . I use to glass Dale Ponsfords ski tails and he would put a massive broom stick channel through a big hip and out the swallow tail exit getting rid of a lot of volume and thinning the exit out . Looked really nice and made sense for a high performance rail . Lots of people do it in different ways . My dad told me of Robert August doing these hanging down flyers years ago probably the 70,s I guess . Robert was in endless summer I’m pretty sure .
My deep double concave exits on my stand up spoons just made sense on Pino’s cause his prone was developed off that plan shape .
We actually added 1/4 inch of resin on his first board we mades last 8 inches of tail behind the fins to test the difference . So being a positive that carried through into this fourth one .

Jai Baker
So good to hear Pino ! Our designs we’ve created are the most thought out step by step designs I’ve done I think .
Coming from the very first plan shape I ever made about 14 years ago now . Thanks for the in-put .
Everyone around our traps are nothing but inspired to see you still having a dig instead of retiring cause your body can’t do certain things anymore ! Hope I can live up to this standard when I’m hurting later in life which I’m sure will happen being a lifer skateboarder as well … haha

Damian Coase
mine is 5 foot 5 by 23 inches wide. Volume is 37 litres of epoxy goodness.



January 1, 2024
https://www.facebook.com/groups/paipobe ... 328855080/
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March 11
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March 12
https://www.facebook.com/groups/paipobe ... 293350080/
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28 April 2023
https://www.facebook.com/groups/paipobe ... 858090080/
Don Boland
Hi Roger am I right in assuming the side bites pictured are 1.9 “ high ? If so myself and Damian have had good results using something similar Ps could you please show us a picture of your board with fins fitted

Damian Coase
To continue with Dons theme we have been playing with fins for 4 years now and have tried a range of positions, combinations and sizes. It probably deserves a post all on its own but let's just say that the end result is small keels, either twins or mostly quads a fair way up the board. Roger Harrell, these look about just right.

May 5, 2024
https://www.facebook.com/groups/paipobe ... 562760080/
FB_CoaseMay5-24.jpg
I've had half a dozen surfs on it from 2 to 6 foot and it gets better each time. Very fast. Started as a quad but will try the twinzers when I get more used to it. Interested to see how it goes in waves of consequene.
Last edited by bgreen on Thu Jul 25, 2024 11:00 pm, edited 5 times in total.
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Re: Facebook posts: Damian Coase

#3

Unread post by bgreen »

1 July 2022
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11 August 2022
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30 September 2023
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6 October 2023
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yes, they use soft plastic fins to keep on the board.


7 October 2023
https://www.facebook.com/groups/paipobe ... 575935080/
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July 10, 2024
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bgreen
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Re: Facebook posts: Damian Coase

#4

Unread post by bgreen »

16 September 2022
https://www.facebook.com/groups/paipobe ... 136015080/
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