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Old 13 April 2004, 11:02   #11
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Imagine my boat at 3.5 tons and 315hp trying to tow Andys at 5 tons.
Believe you me yesterday I got up to 5/6knots on a flat sea, was burning 3 to 4 litres per mile and running at over 3000rpm. After 10 mins things got veeeery hot.

In our scenario, we could easily be 50 miles from land in inclement weather.
The tug is likely to a)run out of fuel and b) damage something and break down as well.
We really want to try to work out how to deal with this potential situation NOW.
Thats why we figured two boats towing the casualty would make our (theoretical) situation "bearable".
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Old 13 April 2004, 11:18   #12
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ok i get the picture now, last year my 9metre rib broke down due to the engineer, not double clipping the water inlet, engine overheated we were only in the Solent at the Needles and a ebb tide four persons onboard and dark , quick call to son who came out on the 5.4 valient with 50hp on the back and towed back to Cowes no problems for the little boat, you say your engine was over heating dont like the sound of that! 50 miles from land hmm! in the channel you are going to be only 30 miles from land in theory yes two boats could tow the one in a v formation would be the best option transfer the weight to the tug,s so tow is lighter but can't say ive come across this one before as for coordinating it vhf
sorry can't be of anymore help
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Old 13 April 2004, 12:40   #13
Seb
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Purely out of interest, what make/spec is your cruising partners boat which weighs 6 tons?

Must be a bit of a lump!

Cheers

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Old 13 April 2004, 13:02   #14
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Magellan Alpha is a 9m cabin Ribtec that has had a lot of lead placed in the keel for stability. It has one Yanmar 300 engine and a Bravo 2 leg.
Awesome Explorer is an 11m 5 ton Redbay with two Yanmar 300s with Bravo 3 legs.
You can see what Cyanide is from my profile.
Hence if Awesome has a complete engine failure (say), MA and Cyanide would prefer to "assist tow" together. Ditto if MA broke down. If I broke down Awesome can tow me comfortably, though MA culd not. Out of interest, Still Deep One with two Yamaha 150s could not tow me outside Stornaway in 2002.
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Old 13 April 2004, 13:15   #15
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Cheers - just interested really as five and six tons is hell of a lot for a rib!!

Bet you guys have fun trying to transport the boats or are they hoist moves only?!

Would'nt have expected any of the boats having trouble moving each other either. Do the Yanmar engines lack low end torque?

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Old 13 April 2004, 14:11   #16
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When my 6.5 arrives brian I will have a go at towing Cyanide if that's O.K.

That 38ft Yacht I towed last summer off the beach where it had blown onto a lee shore near Dartmouth must have weighed a few tonne. I was in the 7m Ribeye with the Yam 200HPDI. Also there was no one on board, they had jumped clear (no I did not claim salvage). Lifeboat refused to go as no life was in danger!
No over heating and managed approx 7-8 knots all the way back to Brixham. Bit hairy around Berry head with a following easterly but other than that no probs.
One of the main problems with towing is getting the towed vessel moving and getting the momentum up. What the tug can do if the casualty does not want to budge is start steering left then right weaving your way forward. This is what I did with the Yacht and it worked fine.
Remember that the RNLI D class only has 40 hp and manages to tow some fairly heavy speed boats and day cruisers in.
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Old 13 April 2004, 14:12   #17
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I passed you about 12 noon just by rock i was cooming out torquay to exmouth i did wave i was doing about 65 mph fantastic day
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Old 13 April 2004, 14:26   #18
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Would a displacement hull be easier to tow than a planing hull not on the plane?
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Old 13 April 2004, 14:55   #19
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Dave have you ever come across a double tow, i have'nt but would be interested if anyone has done such a tow. re the overheating issue something is not quite right as all the boats should be capable of moving big lumps around
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Old 13 April 2004, 16:01   #20
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I agree with the over heating. I think brian should check the cooling system out. I am pretty sure I have seen 2 tugs both pulling at the front of a ship at about the 11 and 1 o clock positions in Southampton Water plus 1 at the back acting as a brake. I personally have not carried out a dual tow but I will ask one of the Torbay Lifeboat chaps tomorrow for his opinion.
If the sea was a bit lumpy, personally I think that it would be extremely risky to do a dual tow.
Should the situation arise when a single tug ( rib ) could not tow another which had broken down, then its time to bring in the professionals rather than ending up with more than 2 casualties!

There is a photo in the spring issue of lifeboat magazine on page 25 of the Exmouth lifeguard inflatable and ILB towing a yacht. At first glance I thought the inflatable was towing the yacht and the ILB was towing the inflatable. i.e. in tandem.
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