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Masthead buoyancy

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Post Options Post Options   Quote bigum Quote  Post ReplyReply Direct Link To This Post Topic: Masthead buoyancy
    Posted: 04 Jul 06 at 9:43am

I know it's not cool but I am considering using masthead buoyancy on my Contender because

1. I'm still learning to trapese & helm so I swim alot

2. The water where I sail is not very deep and I don't want to get the mast stuck in the mud.

Is there a down side to this idea ( apart from cost & looking like a nerd )? Also should I use the crewsaver "fender" style or the "airship" style that cats use?

All opinions & experiance welcome.....

 

 

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Post Options Post Options   Quote jpbuzz591 Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jul 06 at 9:47am
I'm have heard that you need at least 40 litres of bouyancy to make much difference and that will slow down the capsize but not necessarily stop inversion.
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Post Options Post Options   Quote BBSCFaithfull Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jul 06 at 10:26am
Just Strap lemonade bottles to the head of the mast. MAy not look kool. But would do the job.
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Post Options Post Options   Quote carshalton fc Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jul 06 at 10:41am

Originally posted by jpbuzz591

I'm have heard that you need at least 40 litres of bouyancy to make much difference and that will slow down the capsize but not necessarily stop inversion.

i think they were having u on. that is about 20 large coke bottle's!  were i work we have the crewsaver bouancy bags (looks like a cheesy watsit) they will stop masts inverting!

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Post Options Post Options   Quote Black no sugar Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jul 06 at 10:43am

Hiya bigum,

Hope you're enjoying the warm weather. Ideal for capsizing!

As a fellow swimmer, I have considered attaching a floatation bag at the top of the mast but the Contender experts in our club weren't convinced. It might be more hassle than it's worth. When hoisting the sail, you've got to be careful the buoyancy aids don't get entangled in the halyard.

You might want to make sure you tape all the holes on the mast first and don't take in too much water when you capsize. It's also a good idea to release the kicker (and the other controls, but kicker is most effective) as soon as you feel you've reached the point of no return. That will prevent the boat from turtling instantly. It will also prevent you from banging your head on the boom when you clamber back on board with the boat head-to-wind.

Now you just need to get on that centreboard, grab the trapeze rope (in my case - I need all the leverage I can get) and start pulling! Watch out for the trap hook on the side decks!  

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Post Options Post Options   Quote jpbuzz591 Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jul 06 at 10:59am
Originally posted by carshalton fc

i think they were having u on. that is about 20 large coke bottle's!  were i work we have the crewsaver bouancy bags (looks like a cheesy watsit) they will stop masts inverting!

Well according to the RYA's entrapment thingy,

 

 "3040 litres of air at the masthead appeared to prevent inversions in a range of

boats and conditions during trials, with no evidence of masts breaking. The

impact on sailing performance is minimal for basic training and coaching.

Undoubtedly significantly less buoyancy would be effective in many boats, but

a fast windward capsize can result in very rapid inversions. 20 litres was

insufficient on many classes." Quoted from RYA.

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MRJP BUZZ 585 View Drop Down
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Post Options Post Options   Quote MRJP BUZZ 585 Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jul 06 at 11:06am

i always attach two milk bottles to my buzz, doesn't stop it inverting but does slow it down

have always had the bottles since mast breakage

finally i should really get out more



Edited by MRJP BUZZ 585
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bigum View Drop Down
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Post Options Post Options   Quote bigum Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jul 06 at 11:26am

Thanks everyone, taping up the holes in the mast is a good idea while I ponder  going the whole hog.

Any other home made solutions ie cheap would be very welcome as the crewsaver thing seems to be 50. (Dont start with the "can't put a price on safety stuff")

 

 

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Post Options Post Options   Quote Villan Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jul 06 at 2:35pm
If you have a hollow mast, put Ping-Pong balls down the mast, and then reseal it?
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Post Options Post Options   Quote MRJP BUZZ 585 Quote  Post ReplyReply Direct Link To This Post Posted: 04 Jul 06 at 2:37pm
well as far as i can see that crewsaver thing is only a inflatable bag, no diffeent from a bottle

just think how much dairy crest might pay you for advertising their milk
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