AYRS meeting at Thorpe (Surrey UK) – 3rd Nov 2019

22nd November 201922nd November 2019 John Perry 0 Comments Meeting, Surf Rescue

Report by John Perry – Another busy meeting with a constant flow of presentations from about 09:30 through to 16:30,

Meeting Reports News

Report of AYRS meeting at Thorpe 17-11-05

24th November 201715th November 2019 John Perry 0 Comments

Several hours of presentations of members’ projects were interspersed with chat over tea/coffee breaks together with a mid-day break for our packed lunches.

Instrumentation & Control • Re: Sail pressure measurement
Hi Alex - I am not quite sure what you mean by 'tell tales connected through the sail' perhaps you have in mind somthing like a hinged flap mounted in a small hole through the sail so that the flap moves when there is a pressure differential between one side of the sail and the […]
Instrumentation & Control • Re: Sail pressure measurement
Hi John,I'm probably not aware as you are but it's exactly what's I imagine. Atmospheric pressure are measured in mm of Hg and 1 mm of Hg is equal to 13,6 mm of water. So I tough that this gauge will do the job. But actually you still have to connect it with the sail, […]
Technical Papers for review and comment • Ultimate sailing for oldies part 6
Ultimate sailing for oldies Part VIDiamond planform wingThe double size hangglider layout is rejected because of the weight of the rigid members (100ft). So my attention turned to my paraglider which weighs only 10lbs (dry). This fails due to my inability to shorten the lines to get the canopy into the ground affect region without […]
News • Shirley Robertson talks AC75s with Design leaders from each of the four America's Cup Teams
The countdown to the 36th America's Cup is very much on, so with the first World Series event rapidly approaching, Shirley Robertson sits down with the four design leaders from each of the four America's Cup teams. The result is a two part podcast that delves deep into the design and build challenges of the […]
Instrumentation & Control • Re: Sail pressure measurement
Thanks Alex - I have taken a look at the website for the Dwyer gauges. The most sensitive ones have full scale deflection of 100Pa (about 10mm wg) which is the stagnation pressure for an air velocity of 12.9 m/s - I still think of wind as a Beaufort scale, this is Force 6. So […]