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AYRS announces Catalyst No 49

28th September 201527th November 2017 AYRS Webmaster

AYRS announces Catalyst No 49 … … is now available, and can be downloaded from here. Online members will shortly

Hydrofoils • Re: Hinged Bruce foiler
The attached Excel file is intended to accompany an article in Catalyst 68. It calculates heeling moment with the foil to weather, under assumptions described in that article. Hinged Bruce foiler heeling.xlsx Hinged Bruce foiler heeling.xlsxStatistics: Posted by Robert Biegler — Wed Nov 06, 2024 9:45 pm
Sails & Aerodynamics • Re: Wrinkles
Hi ChrisUntitled.jpgHere is a diagram from the late Tom Speer, an AYRS member who worked professionally in aerodynamics and who played a large part in the development of wingsails for the Oracle Americas Cup team. Unfortunately I do not know where this diagram was published. This diagram is clearly for a single skin mainsail on […]
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Please note that the contact address "BCM AYRS London WC1N 3XX" is no longer valid.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

Author: AYRS Webmaster

AYRS announces Catalyst No 49

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