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Old 24 July 2003, 11:22   #1
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Country: UK - England
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Fuel consumtion. Can you help?

Can anyone help? what sort of fuel consumtion can i expect (say galls per hour) from my RIB (6.4 mtr 115hp 4e stroke) i want to put a new tank in it and i am looking at a 91 ltr (20 Gallon) i could fit two as i have room.

Thanks Chris
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Old 24 July 2003, 11:58   #2
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As you can see I have a 6.3m boat with 115hp 4 stroke.

I have not done that much with it yet, only 10 hours running and max speed 30 knots.

I am currently getting approx 1 to 1.25 litres per mile.
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Old 24 July 2003, 17:56   #3
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Chris,
When I was looking for a RIB, one of the requirements was a big fuel tank, to give a potential full day's running. I've ended up with a 270 litre tank. Go for the two tanks, I reckon. Where are you fitting them - are they going underfloor?
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Old 24 July 2003, 18:41   #4
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Hello,
Yes i have room under floor there are full length hatches about 500wide by about 400 deep through the centre of the boat.
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Old 24 July 2003, 18:43   #5
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Hi Gingercoasty

Thanks,
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Old 24 July 2003, 18:53   #6
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under floor tanks

You may be able to see the hatches in this pic
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Old 25 July 2003, 04:37   #7
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Irrespective of consumption if you have the room fit both tanks.

If you going on a short trip just fill the one but if you plan to cruise you will find the extra tank invaluble.

When planning any trip I base my calulation for my 5.85m rib 140HP four stroke as 1litre per 1NM this I have found to give me a good safety margin.

Averaged over the entire use of my boat this year my actual feul consumption is better than 0.8 ltre per 1nm
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Old 25 July 2003, 04:38   #8
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Is that some sort of boarding ladder hanging over the tubes in the picture ??
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Old 25 July 2003, 06:02   #9
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Quote:
Originally posted by mstacey
Is that some sort of boarding ladder hanging over the tubes in the picture ??
Certainly is - most South African ribs come with the ladder fitted as standard - manufactured mostly by one company - they really are excellent especially after a heavy mono-skiing session when you have no strength in your arms to pull yourself back onto the rib.
Here's a better picture
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Old 25 July 2003, 06:10   #10
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Another pic. The ladder is attached on the inside of the tube by two 'velco'd' flaps. On the Hysucat this ripped off - very annoying -I insisted they make it better and stronger for my next rib from the same manufacturer.
....and no, I am not a fat bastard, this happenned to one of the kids.
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