Search found 339 matches

by CHRISPI
Fri Jul 09, 2021 6:18 pm
Forum: Paipo Board Design & Building
Topic: Very thin rails with bouncy
Replies: 16
Views: 258

Re: Very thin rails with bouncy

20 top 20 bottom 10 laminate 3top 3bottom 59mm total plenty buoyancy
by CHRISPI
Thu Jul 08, 2021 5:51 pm
Forum: Paipo Board Design & Building
Topic: Very thin rails with bouncy
Replies: 16
Views: 258

Re: Very thin rails with bouncy

The polyethylene is dressed with a high grade 3mm foam for looks and colour contrast .
by CHRISPI
Thu Jul 08, 2021 5:42 pm
Forum: Paipo Board Design & Building
Topic: Very thin rails with bouncy
Replies: 16
Views: 258

Re: Very thin rails with bouncy

Yes the middle layer of 6oz is to give the laminate torsional strength, forgot to mention I also used carbon mesh in the middle layer on this board , I set the rocker without the outer layer of glass , shape the final dimensions set the wing ,rail lending and trailing edges ,then cover the top and b...
by CHRISPI
Thu Jul 08, 2021 12:51 pm
Forum: Paipo Board Design & Building
Topic: Very thin rails with bouncy
Replies: 16
Views: 258

Re: Very thin rails with bouncy

Hi Bob I used two layers of 5mm core foam with a layer of 6oz cloth in the middle ,rocker is set with batons and weight you can heat set core foam as well , and 6oz cloth top and bottom has some flex , and then covered with 20mm polyethylene foam top and bottom for bouncy and shape .The rails are th...
by CHRISPI
Mon Jun 21, 2021 12:31 pm
Forum: Paipo Board Design & Building
Topic: Very thin rails with bouncy
Replies: 16
Views: 258

Re: Very thin rails with bouncy

The rails go deep blue in the water so cool ,this board really go's well I way 109 kg the carry in slop is amazing.
by CHRISPI
Sat Jun 19, 2021 8:54 am
Forum: Paipo Board Design & Building
Topic: Very thin rails with bouncy
Replies: 16
Views: 258

Re: Very thin rails with bouncy

Is that some kind of bad language auto correct .sorry
by CHRISPI
Sat Jun 19, 2021 8:50 am
Forum: Paipo Board Design & Building
Topic: Very thin rails with bouncy
Replies: 16
Views: 258

Re: Very thin rails with bouncy

SheeeeIIIIItttttt waves
by CHRISPI
Sat Jun 19, 2021 8:48 am
Forum: Paipo Board Design & Building
Topic: Very thin rails with bouncy
Replies: 16
Views: 258

Re: Very thin rails with bouncy

Test ride done , in sloppy 4ft UK 7sec swell ,this board is sensational never had board that rides SheeeeIIIIItttttt waves so well
by CHRISPI
Tue Jun 08, 2021 11:16 am
Forum: Paipo Board Design & Building
Topic: Very thin rails with bouncy
Replies: 16
Views: 258

Re: Very thin rails with bouncy

mirror b with leash.jpg
Plugged and ready for testing ,unfortunately north sea in summer doldrums no surf for weeks
by CHRISPI
Sat Jun 05, 2021 7:44 am
Forum: Paipo Board Design & Building
Topic: TBG7
Replies: 35
Views: 1635

Re: TBG7

Turbo fan blades
by CHRISPI
Thu Jun 03, 2021 4:44 pm
Forum: Paipo Board Design & Building
Topic: New project... this time a Paipo
Replies: 32
Views: 450

Re: New project... this time a Paipo

Why dont you try core foam used in boat building 5,10,20mm thickness ,easy to set channels ,rockers with heat or bending with batons and weights gets fantastic resin penetration
by CHRISPI
Sat May 29, 2021 6:04 am
Forum: Paipo Board Design & Building
Topic: French paipo
Replies: 35
Views: 1280

Re: French paipo

I love the rails in the tail area . But they look fragile and will chip for nothing ,I contemplate this allot how thin is to thin on a rail dose it improve performance
by CHRISPI
Mon May 03, 2021 7:13 am
Forum: Paipo Board Design & Building
Topic: Lockdown special The Bat Lid
Replies: 8
Views: 754

Re: Lockdown special The Bat Lid

I have checked staites on the google sat picks cant see were to surf , I am a loan surfer and suffer water anxiety at new places so good to have a surf buddy to push the envelop , I also have some questionable paddle out techniques , I use a kick board stance holding the board a bit fare back to pul...
by CHRISPI
Fri Apr 23, 2021 3:23 pm
Forum: Paipo Board Design & Building
Topic: Lockdown special The Bat Lid
Replies: 8
Views: 754

Re: Lockdown special The Bat Lid

Just finished a second test ride on this board .3 hrs at Cayton Bay 4 to 5ft a weak 9 sec swell offshore winds ,first thing I noted was how easy it was to find the ride centre the board sort off lands naturally under the body , the other wing boards all take a few sessions the work out , pulls long ...
by CHRISPI
Sun Feb 21, 2021 10:48 am
Forum: Paipo Board Design & Building
Topic: Lockdown special The Bat Lid
Replies: 8
Views: 754

Lockdown special The Bat Lid

Another crackpot idea, see what happens if you fold the rail wake over twice??untested still in lockdown !!!
F12 (2).jpg
F12 (2).jpg
by CHRISPI
Sun Nov 29, 2020 8:28 am
Forum: Paipo Board Design & Building
Topic: Cornwall style board
Replies: 9
Views: 825

Re: Cornwall style board

You are lucky, breaking stuff is the best way to understand structure limits, it’s easy to over engineer.
by CHRISPI
Sun Nov 22, 2020 8:42 am
Forum: Paipo Board Design & Building
Topic: Quad Concave Body Board Study
Replies: 88
Views: 6206

Re: Quad Concave Body Board Study

Fluid mechanics love it I spend a lot time watching wakes, vortexes on clips like this but this one has stumped me .
by CHRISPI
Sat Oct 31, 2020 9:27 am
Forum: Paipo Board Design & Building
Topic: Quad Concave Body Board Study
Replies: 88
Views: 6206

Re: Quad Concave Body Board Study

Flat laminates have very good twisting flex but bad bending flex or rocker flex ,I run 5mm x about 50 mm foam strip along the bottom centreline .Blended into the bottom surface making a lengthwise domed rib and the stiffness is control by how many layers off clothe laminated , good twist flex around...