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Old 26 September 2008, 18:41   #1
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will it go over? bombard 380 15hp

Went out today in portland harbour the wind was blowing onshore and was 10knots, the sea was choppy with white horses. i was having doubts about going out but having driven 2 hours thought i would try. Had a dirty underpant moment when heading windward the front lifted right up and i thought i was going over front to back. Will this thing go over or am i over reacting being a noob and all.
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Old 26 September 2008, 23:08   #2
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It certainly will have a look here - better to be a wuss and live to sail another day
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Old 26 September 2008, 23:17   #3
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it could go over it has happened many times before esecially if the weight distribution is wrong ie all the weight at the stern plus a strong wind and a lumpy sea and a heavy wrist on the throttle and usually going solo ,but at least you did notice the risk before rather than going over then wondering what happened, but a lot of it is knowing the boat and your limitations before things get out of hand . obviously the lighter the boat the more risk there is in windy conditions, flat bottom no keel boats are prone to this more . though having as much weight forward to the bow will help ,fuel tank ,anchor ,ect though there is always a point of no return when the boat goes up a wave catches the wind and is held there for a few seconds either flopping back down or flipping over, which once happened to me about 20 years ago ,when upside down i was still holding the tiller. the engine fell off lucky it was only a 4 hp and i was near to shore ,the engine was pulling me around like a cartoon until it cut out after about 8 seconds as the throttle was on the cowl front type and i couldent switch it off .so yes there is a big possibility that could flip. ps to echo fred bolton best to be on shore whishing you were out there than been out there whishing you were back in
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Old 27 September 2008, 12:31   #4
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Christ ,they must of had another life boat bigger to save them?
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Old 27 September 2008, 13:18   #5
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Originally Posted by thornbackflound View Post
Christ ,they must of had another life boat bigger to save them?
they and the boat shaken but unharmed from what i heard ,by the time they had mustered themselves together and had begun the capsize drills and going through the procedure to re right, the boat was just about back on the beach.as i said theres the critical point of no return when the bow lifts, it either flops back down or is blown over depending on waves wind and the throttle,the atlantic class are a bit stern heavy anyhow the later modifications included bow water ballast tanks to be fitted.
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Old 28 September 2008, 01:57   #6
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Will this thing go over or am i over reacting being a noob and all.
Get yourself a sumo fighter and place him on bow next time you plan to sib alone in choppy and windy seas, never use full throttle, just sufficient throttle to have sib horizontal as possible, accelerate enough as to compensate hard wind if being pushed as not to move from actual position, but trying to maintain horizontal sib as possible. Should sib at least with 1 mate, with well balanced sib, never alone. If possible check water conditions on area you plan to sib prior going out of home.

Happy Sibbing
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Old 28 September 2008, 16:01   #7
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they and the boat shaken but unharmed from what i heard ,by the time they had mustered themselves together and had begun the capsize drills and going through the procedure to re right, the boat was just about back on the beach.as i said theres the critical point of no return when the bow lifts, it either flops back down or is blown over depending on waves wind and the throttle,the atlantic class are a bit stern heavy anyhow the later modifications included bow water ballast tanks to be fitted.
The Atlantics aren't stern heavy. The only reason that Whitstable capsized was too much power.
75's are fitted with a ballast tank for running into weather, this can be ditched and refilled at sea.
A boat can capsize one of two ways, too much power and the wind blowing it over as in the video or you launching it off a big wave and the engines weight making the stern swing down causing a pendulum effect and capsizing the boat.

Whitstable righted they boat and it got washed up on the beach along with the crew. If you ever see the full length video the posture of one of the crew sat on the beach somes the whole situation up.
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Old 29 September 2008, 14:04   #8
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Most RIBs with twin outboards are stern heavy!!!
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Old 30 September 2008, 21:45   #9
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any how back to sibs flipping over as there is a big difference between an atlantic class rib wieghing in at over 1 and a half tons to a sib weighing a hundred kilos or so ,if you did flip it over you may with a bit of preperation and with the right clothing stand a good chance of re righting it even on your own and even starting the engine with a bit of luck ,if not at least your out of the water ,there again there are a few rnli training videos on you tube under d class capsize that may be of intrest ,a few of us are going to try see how easy it is to right a sib solo under sheltered conditions ,will post some pics when we do and see how we coped ,might be a few weeks though .happy sibbing to all .mart
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Old 01 October 2008, 13:32   #10
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Flip

Nearest I ever came to flipping over backwards in a SIB was in the down drought of one of the big rescue helicopters; I thought it was an S61, but I could be wrong (gave up aircraft spotting when I was a sprog).
I was diving on the Mixon Hole when being the 'biggest' small craft available they asked me to act as a tender to pick up a casualty. I was just about lying on the floor whilst holding the tiller to keep the bow down
Anyway they aborted the attempt as the urgency had gone out of the situation.
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