Presenter:Skip_Johnson – Amateur Yacht Research Society

Innovation
Simple craft
Odd craft
Speed
Old designs
New designs
Challenges
Resources

Zoom Meeting – Skip Johnson presents his latest proa project

As part of our August Zoom meeting Skip Johnson gave us a short summary of his proa building and sailing

Sails & Aerodynamics • Wrinkles
I've been watching the America's Cup preliminaries and noticed that some teams, especially Alinghi Red Bull, have a lot of wrinkles in the bottom of their mainsails.Although you often see wrinkles on sails, mainly radiating from the tack or clew, surely this can’t be good for airflow, power or drag.What does anyone think?Statistics: Posted by […]
Members Sales and Wants • Catamaran hulls in search of a new home
CALLIOPE and CERES hulls (plus some other parts) are available to anyone who can make use of them. Calliope was a 16' hydrofoil catamaran that had some success at Weymouth Speed Week in the 1990s. The hulls were made from tortured 3mm plywood to a semi-circular cross section and are quite light. Ceres was a […]
Welcome to the AYRS Forums • Contact Addresses
Please note that the contact address "BCM AYRS London WC1N 3XX" is no longer valid. In order to contact the AYRS Chairman or treasurer please see:https://www.ayrs.org/contact-us/Statistics: Posted by AYRSwebadmin — Fri Feb 02, 2024 9:46 am
Members Sales and Wants • Re: Hapas free to a good home
I could use the Rousson design for my next project, a hapa-stablised canoe. It would make a good comparison for the design I already built (rather crudely). But for £2800, I could probably get a custom-built foil. I suppose size is the problem. Is it possible to take it apart?The next project will be to […]
Craft • Re: solar electric propulsion of a power kat, 6.3 m
In the picture above is just one transom of the two demi hulls. Statistics: Posted by Heimfried — Sun Oct 01, 2023 5:21 pm