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Old 07-12-2016, 16:01   #1
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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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Old 07-12-2016, 16:33   #2
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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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Old 07-12-2016, 16:39   #3
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pirate Re: Reef wind speeds on catamaran

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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?
Condo Windage...
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Old 07-12-2016, 16:55   #4
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Re: Reef wind speeds on catamaran

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Condo Windage...
Ahem, you mean the rigid spinnaker (AKA deck house).
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Old 07-12-2016, 17:24   #5
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Re: Reef wind speeds on catamaran

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Originally Posted by AndyBerry View Post
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?
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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Old 07-12-2016, 17:49   #6
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Re: Reef wind speeds on catamaran

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Ahem, you mean the rigid spinnaker (AKA deck house).
Lmao! I like that.
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Old 07-12-2016, 17:54   #7
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Re: Reef wind speeds on catamaran

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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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Old 08-12-2016, 05:03   #8
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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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Old 08-12-2016, 08:43   #9
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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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Old 08-12-2016, 09:53   #10
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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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Old 18-12-2016, 18:34   #11
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Re: REEFING CHART

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Originally Posted by Cotemar View Post
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.
.
.
Thanks for chart. Are those speeds true or apparent?
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Old 19-12-2016, 04:42   #12
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Re: REEFING CHART

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Thanks for chart. Are those speeds true or apparent?
The boat only sees apparent wind.....
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