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Prop Guards

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    Posted: 25 Oct 11 at 2:28pm
They will go over in the breakers if you aren't quick about it, they go sideways and then over:
 
 
 
 
This is our small rib but it will happen with a big rib. No one hurt this time.


Edited by GK.LaserII - 25 Oct 11 at 2:30pm
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alstorer View Drop Down
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Post Options Post Options   Quote alstorer Quote  Post ReplyReply Direct Link To This Post Posted: 25 Oct 11 at 3:34pm
RNLI big Ribs, which do admittedly have to go out in all sorts of conditions, have a inflating "self righting" system fitted to the "roll cage" struture on the back of their boats.
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Al
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Post Options Post Options   Quote tgruitt Quote  Post ReplyReply Direct Link To This Post Posted: 25 Oct 11 at 3:36pm
Originally posted by ham4sand

howw do you capsize a rib??!??!?!?!!


Quite easily!
Needs to sail more...
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Post Options Post Options   Quote G.R.F. Quote  Post ReplyReply Direct Link To This Post Posted: 25 Oct 11 at 4:37pm
In their wisdom whoever designed this new engine has limited the power trim under power, i.e. under load it doesn't trim, which makes it next to useless for adjusting the crafts attitude in the sea. (Going with the sea you trim it up going into the sea you trim it down).

As to how to capsize a rib, it's very easy I've seen RNLI guys do it, simplest way, come haring in towards the beach and turn at high speed one eighty back out to sea into the oncoming wind and waves, that'll do it, makes a great spectacle at a sea safety day..

I don't know what comes over some people when they get behind the controls of a fast boat on the water, it's almost like feeding them a how to be a complete t**ser pill.
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Post Options Post Options   Quote Buzz Quote  Post ReplyReply Direct Link To This Post Posted: 25 Oct 11 at 5:24pm
I know how ribs can be capsized when people are going quickly as I have seen it happen.
 
It was the approaching the shore bit I was unsure of as I hadn't considered a small rib. From the picture I can see how easy it could be.
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Post Options Post Options   Quote Contender443 Quote  Post ReplyReply Direct Link To This Post Posted: 25 Oct 11 at 8:29pm
To capsize a rib you come in slowly to the shore in surf. Swich off the power too early (basically before the bow hits the beach) and the boat will turn side onto the waves. If the timing is right this will happen just as a breaking wave catches you and hey presto you are flipped over.
 
The rules to do it properly and not damage your engine are. Come into the beach quickly, get the boat out of the water quickly with the help of a beach party and switch the engine off quickly. There will always be a beach party as the rib is always last off the water and all the sailors wait for it to come back.
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Post Options Post Options   Quote Garry Quote  Post ReplyReply Direct Link To This Post Posted: 26 Oct 11 at 1:28pm
Any breaking wave as high as the beam of the rib will capsize it if the boat is caught beam on, size of the rib is pretty irrelevant, its relative wave height.  Breaking waves tend to turn the boat beam on so you need sufficient power to keep tracking in a straight line...
Garry

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Post Options Post Options   Quote radixon Quote  Post ReplyReply Direct Link To This Post Posted: 26 Oct 11 at 2:14pm
A proguard might not help if they fail to trim the engine up though, you will either end up breaking the propguard or bending it, which may mean you have an engine that wont work if proguard is badly bent.

I will put my hands up and admit I managed to bend a prop this year, was very clean until I took it over a mud bank, £100 later I have a new prop, but not sure I would of been able to drive it back if I had a prop guard on.
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