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07-12-2016, 16:01
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#1
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Registered User
Join Date: Nov 2015
Posts: 31
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Reef wind speeds on catamaran
Looking at suggested reef points for catamarans and downwind suggests more reefing than upwind. With lower apparent wind why would you reef more for downwind than upwind?
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07-12-2016, 16:33
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#2
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Registered User
Join Date: Dec 2007
Boat: Mahe 36, Helia 44 Evo, MY 37
Posts: 5,731
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REEFING CHART
Each Catamaran design has its own REEFING CHART that should be followed to sail it safely.
In most catamaran designs its just bare poles at 50 knots.
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07-12-2016, 16:39
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#3
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Senior Cruiser
Join Date: Jan 2010
Location: PORTUGAL
Posts: 30,561
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Re: Reef wind speeds on catamaran
Quote:
Originally Posted by AndyBerry
Looking at suggested reef points for catamarans and downwind suggests more reefing than upwind. With lower apparent wind why would you reef more for downwind than upwind?
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Condo Windage...
__________________
It was a dark and stormy night and the captain of the ship said.. "Hey Jim, spin us a yarn." and the yarn began like this.. "It was a dark and stormy night.."
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07-12-2016, 16:55
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#4
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Registered User
Join Date: Dec 2010
Location: W Carib
Boat: Wildcat 35, Hobie 33
Posts: 13,479
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Re: Reef wind speeds on catamaran
Quote:
Originally Posted by boatman61
Condo Windage...
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Ahem, you mean the rigid spinnaker (AKA deck house).
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07-12-2016, 17:24
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#5
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Senior Cruiser
Join Date: Nov 2013
Location: Port Moresby,Papua New Guinea
Boat: FP Belize Maestro 43 and OPBs
Posts: 12,888
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Re: Reef wind speeds on catamaran
Quote:
Originally Posted by AndyBerry
Looking at suggested reef points for catamarans and downwind suggests more reefing than upwind. With lower apparent wind why would you reef more for downwind than upwind?
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Are the figures you are looking at for true or apparent wind?
If you're sailing downwind with an apparent wind speed of 15 knots, it's going to get a lot higher when you turn, so time to reef. If you are sailing to windward and have 15 knots apparent, no problem.
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07-12-2016, 17:49
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#6
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Registered User
Join Date: Aug 2009
Location: Bahamas/Florida
Boat: Solaris Sunstar 36' catamaran
Posts: 2,686
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Re: Reef wind speeds on catamaran
Quote:
Originally Posted by belizesailor
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Lmao! I like that.
__________________
Sail Fast Live Slow
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07-12-2016, 17:54
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#7
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Writing Full-Time Since 2014
Join Date: Nov 2008
Location: Deale, MD
Boat: PDQ Altair, 32/34
Posts: 9,559
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Re: Reef wind speeds on catamaran
Quote:
Originally Posted by StuM
Are the figures you are looking at for true or apparent wind?
If you're sailing downwind with an apparent wind speed of 15 knots, it's going to get a lot higher when you turn, so time to reef. If you are sailing to windward and have 15 knots apparent, no problem.
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Give StuM the gold star!
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08-12-2016, 05:03
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#8
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Registered User
Join Date: Oct 2009
Location: Bermuda
Boat: Privilege 435
Posts: 586
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Re: Reef wind speeds on catamaran
If you're sailing upwind and the wind continues to increase, reefing is fairly easy in that you turn into the wind, luff your sail (or just before that point) and reef. Sailing downwind when the wind increases can be dangerous as it's now much harder to reef. It's unlikely that you can reef your sail when it's full of wind so the alternative is to turn around into the wind, thus coming broadside to increasing winds with too much sail up.
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08-12-2016, 08:43
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#9
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Registered User
Join Date: Aug 2014
Location: Left coast.
Posts: 1,451
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Re: Reef wind speeds on catamaran
Never carry more mainsail downwind then you would going upwind. Reefing the main going downwind isn't that difficult, it just takes longer. Much more preferable than turning upwind. If you're overpowered going downwind, you'll be really overpowered when you turn upwind.
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08-12-2016, 09:53
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#10
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Registered User
Join Date: Feb 2014
Location: richards Bay, South Africa
Boat: voyage Mayotte 50 ft cat
Posts: 165
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Re: Reef wind speeds on catamaran
One of the most dangerous conditions for cats is surfing too fast with the with the risk of pitch poling. Thats a good reason to reef more downwing which is less dangerous that sailing upwind.
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18-12-2016, 18:34
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#11
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Registered User
Join Date: Nov 2015
Posts: 31
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Re: REEFING CHART
Quote:
Originally Posted by Cotemar
Each Catamaran design has its own REEFING CHART that should be followed to sail it safely.
In most catamaran designs its just bare poles at 50 knots.
.
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Thanks for chart. Are those speeds true or apparent?
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19-12-2016, 04:42
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#12
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Registered User
Join Date: Jun 2007
Location: SW Florida
Boat: FP Belize, 43' - Dot Dun
Posts: 3,823
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Re: REEFING CHART
Quote:
Originally Posted by AndyBerry
Thanks for chart. Are those speeds true or apparent?
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The boat only sees apparent wind.....
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