Please select your home edition
Edition
NeilPryde 2020 RYA Dinghy Show - LEADERBOARD

Spray Chill Factor - a new Scale for Sailors!

by Rachel Cooper, Rooster Sailing 16 Mar 2006 14:35 GMT
Spray Chill Factor - a new scale for sailors © Rooster Sailing

Last weekend's racing saw over two hundred boats enter the Laser Qualifier at Stokes Bay and the Merlin Rockets, Foxers and Fireflies take part in the Hamble Warming Pan.

Chimet Weather Station on Chichester Bar showed the Wind-chill Factor last Sunday was an extreme MINUS 4 degrees centigrade. This was calculated using the air temperature of 2.7 degrees centigrade and a wind speed of 15 knots. However this is not a true calculation of the actual wind chill as we all know how much colder it is when you have a wave splash over you. With a water temperature of only 4 degrees centigrade the real reason that it was so cold last weekend is because water takes heat away from the body 27 times faster than air!

Being one of the brave (or very stupid!) Merlin sailors to venture out in everything I owned I certainly had a moments where I wondered.. "why am I doing this?" That thought was particularly strong after the lamb hot-pot lunch that the lovely ladies at Hamble River Sailing Club had laid on. Never before have I eaten a hot lunch inside a clubhouse in all my rooster kit including rooster Buoyancy Aid and Aquafleece Beanie Hat!

As we crossed the finish line in the second race I said to my helm that I could have sailed three more races back to back, because I was warm AND I wasn't wearing a drysuit! The Rooster DS layering System was working.

Steve Cockerill states "I am trying to develop a new Chill Factor that takes into account the situation that dinghy sailors find themselves. Wind Chill takes into account the extra cooling effect of the air on bare skin and is only half of the equation. It does not take into account the additional cooling of water (a substance that can cool 27 times faster as it has a higher conductivity) or the dew point - a measure of how dry the surrounding air is (dryer air encourages water to evaporate, leaving you colder) and the water temperature. Steve hopes to call it the "Spray Chill Factor". If you think you can add to this calculation please feel free to email steve@roostersailing.com

If you were cold last weekend you need to take a look at www.roostersailing.com and see for yourself how to keep warm when it's a minimum of -4 wind-chill and perhaps -15 Spray Chill on the water!

Related Articles

New in Stock at Rooster: Technical Casual 2020
Tested by the whole team, ambassadors, friends and family Our latest 2020 range, already getting the reviews it deserves, comfort, durability, practical and stylish kit for everything the new decade has to throw at us. Tested by the whole team, ambassadors, friends and family. Posted on 5 Feb
Blocks, Cleats, Carbon, Rope, Hiking Straps & More
Save up to 20% off chandlery and hardare during February Take your pick of our savings across a vast range of parts for your boat this winter. On the blog you can see how to Repair Foils using WEST SYSTEM® Epoxy, Replace your Dinghy Trailer Hub and find out if Dyneema® Shock Cord is really worth the money... Posted on 29 Jan
Let Rooster's PolyPro Transform Your Winter
Naturally hydrophobic, fleece-like and feels incredibly warm and soft Rooster Polypro™ is naturally hydrophobic, toasty, fleece-like & feels incredibly warm and soft next to your skin making it the perfect base layer. There is 25% off Polypro combo deals. Posted on 24 Jan
Do-It-Yourself this Winter with Rooster
Save on Blocks, Cleats, Carbon, Rope, Hiking Straps & more at Rooster Take your pick of savings across a vast range of parts & accessories for your boat this winter. On the blog you can see how-to Repair Foils using the WEST SYSTEM® Epoxy, Replace your Dinghy Trailer Hub and more... Posted on 3 Jan
New Products from Rooster
For those moments when water lovers are caught on land The creators and designers at Rooster continue advancing their passion projects and this season are adding 8 new products into their curated range of technical casual gear. Posted on 16 Dec 2019
Be ready for next Summer
At least 10% OFF all Blocks, Cleats, Carbon, Rope, Hiking Straps at Rooster Do-it-yourself this Winter. Take your pick of our savings across a vast range of parts & accessories for your boat this winter. Order in time and get bimbling over the Christmas break. Posted on 14 Dec 2019
Rooster's Warmest Gloves Yet
There really is no need for cold hands There really is no need for cold hands. Grab a pair of our warmest gloves yet. Combining the insulating power of neoprene with top-drawer windchill protection of Aquafleece® to create the glove for winter. Posted on 11 Dec 2019
Rooster opens 2020 Ambassador Applications
On the lookout for role models and enthusiasts to form global community Every year Rooster is on the lookout for role models and enthusiasts to form a global community of like-minded individuals. We aim to support these visionaries and work with each other to support their connection to the water. Posted on 8 Dec 2019
The Joy of Sailing
Look beyond the disability - Hannah Shelmerdine's story The definition of Joy is "a feeling of great pleasure and happiness". This is exactly the feeling I experience whilst I am sailing. Everybody can see who I am when I am sailing... Hannah! Look beyond the disability, crack open the shell and here I am. Posted on 7 Dec 2019
First Season in the RS400
Steve Cockerill reflects on crew weight, rig settings and more So our first season of the RS400 is almost over. We had never looked at an RS400 as an option for us as we considered ourselves to be too small. At 143Kg (22.5 stone) we thought we fell between the RS200 and the RS400. Posted on 30 Nov 2019