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Old 10 March 2008, 05:24   #1
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launching / recovery a rib from the stern of a vessel

Has anybody got any idea how this is done of course it has to be a jet driven rib. I mean how do the catch / clamp the rib once it gets up the ramp. I have seen something like that on a Fishery Protection vessel in Shoreham.
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Old 10 March 2008, 05:31   #2
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I worked on that boat for just over 2 years...

Basically the boat is dropped back on a quick release so that the outdrive was in the water (stored raised using trailer tilt), engine started and warmed up. When RIB crew ready quick release is pulled by deck crew, RIB slides down ramp and when mother ship is clear can be used as normal. Launch speed for mother ship was around 4 knts.

Recovery meant coming up to stern ramp, powering the bow up onto the ramp and a quick link is passed by the deck crew to the RIB crew (needs min of 2 on RIB), which is attached to a winch. As the tension is taken up on the winch cable the RIB helm has to cut the engine and raise the leg before itc comes over the back of the ramp. RIB keel has a stainless reinforcing strip along it's length.

They ve got a (?)5.9m Delta with 180bhp inboard diesel driving a Mercruiser leg. There is also refuelling facilities on board.

W.
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Old 10 March 2008, 06:09   #3
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Originally Posted by SDGANDER View Post
I worked on that boat for just over 2 years...

Basically the boat is dropped back on a quick release so that the outdrive was in the water (stored raised using trailer tilt), engine started and warmed up. When RIB crew ready quick release is pulled by deck crew, RIB slides down ramp and when mother ship is clear can be used as normal. Launch speed for mother ship was around 4 knts.

Recovery meant coming up to stern ramp, powering the bow up onto the ramp and a quick link is passed by the deck crew to the RIB crew (needs min of 2 on RIB), which is attached to a winch. As the tension is taken up on the winch cable the RIB helm has to cut the engine and raise the leg before itc comes over the back of the ramp. RIB keel has a stainless reinforcing strip along it's length.

They ve got a (?)5.9m Delta with 180bhp inboard diesel driving a Mercruiser leg. There is also refuelling facilities on board.

W.
Many thanks, where is the quick link attached to on the rib
also are there any guide rollers like on a boat trailer
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Old 10 March 2008, 06:40   #4
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The quick link - a split link type - is on a short 3 - 4 ft painter to the bow eye which is approx 2 ft below the bottom of the bow tubing.

The 'slipway' has a greased hard (?) plastic centre piece for the keel to travel on and I think there were 3 side pieces across the beam on the surface of the slip - no rollers except at the top for the winch wire.

Getting the RIB in the middle of the slip was down to the helm - but when winched up there was little space around the RIB. They had the boat built to their specs and I assume it was designed to suit the Delta foremost.

The operating limit was around force 5 - 6 seas.

W.
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Old 10 March 2008, 07:36   #5
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In Cornwall. the fisheries vessel "St Pirran" uses roughly the same method.

Drop me a note if you'd like the contact details for their CFO, I'm sure he'd let you have full spec if you need it.

Simon
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Old 10 March 2008, 08:31   #6
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Many thanks for your prompt responses

Simon pls PM me the info cos would like to have full spec
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Old 10 March 2008, 10:22   #7
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Likewise for Sussex - or just drop by if you see them on the quayside - sure you ll be made welcome if you don't mention my name

Have the SOP somewhere for the launch/recovery if interested.

SDG.
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Old 10 March 2008, 10:42   #8
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PM sent
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Old 10 March 2008, 11:48   #9
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Likewise for Sussex - or just drop by if you see them on the quayside - sure you ll be made welcome if you don't mention my name

Have the SOP somewhere for the launch/recovery if interested.

SDG.

I will have to pop down thanks.
and yes very interested in the SOP for launch/recovery thanks
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Old 10 March 2008, 11:48   #10
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PM sent

Got it thanks
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