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Mast top float

19 Posts
8 Users
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 riv
(@riv)
Posts: 4
Lubber
Topic starter
 

I'm thinking of buying a beach cat, however I sail on thin ( sometimes less than 3ft) tidal muddy water and usually alone. My main worry is capsizing and getting the mast stuck. It would be a long lonely swim home.

Plenty of H14s Prindles H16s and Darts around to buy, but firstly without a mast top float how deep does a H14 mast top go when capsized and if I fit a mast float other than having drag and weight in the wrong place are there any disadvantages?

 
Posted : September 8, 2017 10:58 am
Andres Chianale
(@Andinista)
Posts: 880
Chief
 

I use a fender, much cheaper and probably lighter
https://m.youtube.com/watch?v=pelqd5CKUgI
The only disadvantage is that it gets on the way of the camera.. (it's usually cleaner than in the video..)

 
Posted : September 9, 2017 12:05 am
 riv
(@riv)
Posts: 4
Lubber
Topic starter
 

Some cats have tear drop floats on the mast top. Do they float level with the water surface on a capsize? Are they reliable. I have a fender on the top of my Laser mast, works fine, but boat is very different.

 
Posted : September 9, 2017 2:37 am
Andres Chianale
(@Andinista)
Posts: 880
Chief
 

I've seen fenders installed on top like the tear drop floats too, probably better because they don't swing around and the tip stays probably 5cm higher. Mine sinks a bit, just the tip, not a problem. What is important, with or without mast float, is to keep the mast sealed. If water gets in you may be able to keep it horizontal or maybe bring it from turtled to horizontal, but I doubt it's possible to right it from there.

 
Posted : September 9, 2017 5:04 am
Dave Farmer
(@davefarmer)
Posts: 390
Mate
 

I think you need a purpose built mast float (Hobie Bob) over a fender, particularly if you want to keep the mast head as close to the surface as possible. It will have more flotation than a fender, and being rigidly attached to the mast will also help keep the mast out of the mud.

And a second on the importance of a sealed mast, even with a float.

 
Posted : September 9, 2017 6:28 pm
pete begle
(@pbegle)
Posts: 879
Chief
 

I like the baby bob by Hobie. It's smaller & looks more proportional to mast & boat & somewhat aerodynamic. The bracket can be bent to fit most masts. It's around $100 & used ones can be found for $50. Pete

prindle pete

 
Posted : September 9, 2017 7:27 pm
 riv
(@riv)
Posts: 4
Lubber
Topic starter
 

Thanks for the replies, the critical aspect was to keep the mast tip very close to the surface as getting stuck in the mud would be a real problem for me and I would probably need to be rescued. So I'll look for a baby bob or similar for an H14 which seems to be the most likely boat to get.

 
Posted : September 10, 2017 6:29 am
tim nell
(@tnell)
Posts: 358
Mate
 

Why not get the boat first? Seems like the cart is getting in front of the horse.

 
Posted : September 10, 2017 3:26 pm
 riv
(@riv)
Posts: 4
Lubber
Topic starter
 

Getting stuck in the mud might be fatal so I wanted to explore the issue. Also where I am cats like the Unicorn come up. They have dinghy style flexible tapered masts which have far too little buoyancy to float and would need a mast top float but are so thin that a fast capsize might rip the top of the mast off. The conversation above has helped me to eliminate those sort of boats even if they are cheap and almost next door.

 
Posted : September 14, 2017 10:08 am
Andres Chianale
(@Andinista)
Posts: 880
Chief
 

Never heard of unicorn cat before, looks pretty cool.

 
Posted : September 14, 2017 11:18 am
Andres Chianale
(@Andinista)
Posts: 880
Chief
 

What about something like this? Maybe a couple of them
https://www.wetsuitoutlet.co.uk/2017-crewsaver-9ltr-mast-float-10085-p-6522.html
I don't understand why you need 100% of the mast out of the water, a few cm submerged shouldn't be a problem as long as it doesn't turtle. I mean just a few, with 20 cm it will likely go turtle.

Edited by Andinista on Sep 15, 2017 - 08:05 AM.

 
Posted : September 15, 2017 1:48 am
(@randii)
Posts: 139
Mate
 

Andinista wrote: What about something like this? Maybe a couple of them
https://www.wetsuitoutlet.co.uk/2017-crewsaver-9ltr-mast-float-10085-p-6522.html

Interesting... they have one for 9 liters and one for 40(!) liters. A liter of fresh water weighs about 1 kg or 2.2 pounds... you get a little more displacement from the density of salt water. That's about 20 pounds displacement from the 9l float and almost 90lbs for the 40l float. I think you'd be hard-pressed to drive that big float under at all! One of my masts came with a Hobie Mama Bob and it displaces almost 60 pounds. You can sit on it and drive it under a little, but not much!

I was surprised how quickly my H18 'sailed' on its side, suspended by the float. I never got around to moving the Bob from the comptip mast to the aluminum stick I usually use.

Randii

Edited by randii on Sep 15, 2017 - 02:40 PM.

 
Posted : September 15, 2017 10:39 am
tominpa
(@tominpa)
Posts: 624
Chief
 

Mast floats are not much to look at. Does anyone have an opinion how much they affect performance?

I definitely need to seal the mast this year. When I had my capsize earlier in the summer it took on quite a bit of water that took several minutes to decant from the bottom of the mast through a small hole for that purpose.

 
Posted : September 15, 2017 11:01 am
MN3
 MN3
(@MN3)
Posts: 7090
One Star Admiral
 

tominpa wrote: Mast floats are not much to look at. Does anyone have an opinion how much they affect performance?

i do

MN3

 
Posted : September 15, 2017 12:21 pm
MN3
 MN3
(@MN3)
Posts: 7090
One Star Admiral
 

What about something like this? Maybe a couple of them
https://www.wetsuitoutlet…-float-10085-p-6522.html

I don't understand what i am looking at

what does this mean
"N.B. Not suitable for boats without anchoring"

MN3

 
Posted : September 15, 2017 12:26 pm
Andres Chianale
(@Andinista)
Posts: 880
Chief
 

I think it means if you don't use an anchor on your cat you're not an eligible customer.. πŸ™„

 
Posted : September 15, 2017 2:02 pm
tominpa
(@tominpa)
Posts: 624
Chief
 

MN3 wrote: [quote=tominpa]Mast floats are not much to look at. Does anyone have an opinion how much they affect performance?

i do

I would try to pry it from your cold dead hands, but I figure you might have something to say about it?

 
Posted : September 15, 2017 2:40 pm
MN3
 MN3
(@MN3)
Posts: 7090
One Star Admiral
 

oh yea,
they are windage but who cares
degrade performance, sure ... a little but who care

if righting your cat is what worries you most, get a hobie bob or baby bob

If you care about racing... get a hobie rotomolded boat - they all have floats

MN3

 
Posted : September 16, 2017 11:48 am
MN3
 MN3
(@MN3)
Posts: 7090
One Star Admiral
 

Andinista wrote: I think it means if you don't use an anchor on your cat you're not an eligible customer.. πŸ™„

I meant what does N.B. Mean? but found out

"Nota bene"

Edited by MN3 on Sep 16, 2017 - 05:49 PM.

MN3

 
Posted : September 16, 2017 11:48 am