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Old 25 April 2006, 15:21   #11
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Originally Posted by ADS
Point me in the direction
i thort yew woz a jeeograffy stoodent

gArf
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Old 25 April 2006, 15:25   #12
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i thort yew woz a jeeograffy stoodent

gArf
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Old 25 April 2006, 15:41   #13
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Originally Posted by The Garfish
i thort yew woz a jeeograffy stoodent

gArf
For a Geography GCSE, they give you a brown pencil for land, and a blue one for the sea.

For an a-level they give you a green pencil as well, so that you can "add" to the land.

A degree still only allows you brown, blue, and green colours, but you get to do it on a computer.
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Old 25 April 2006, 15:45   #14
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Originally Posted by Jimbo
For a Geography GCSE, they give you a brown pencil for land, and a blue one for the sea.

For an a-level they give you a green pencil as well, so that you can "add" to the land.

A degree still only allows you brown, blue, and green colours, but you get to do it on a computer.
You can hardly talk Jimbo, your course is effectively geography based! But yes, it is mainly colouring in
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Old 25 April 2006, 15:50   #15
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8knots ahead, and then 8knots astern is all you need, both at 700rpm (WOT), 300rpm, hard boat though and it does roll a lot
http://files.ribseadrive.co.uk/8knots.wmv

If I bought a 6.5metre rib that was capable of over 50knots, it would be wasted. Last year, on every trip out, the only time I ever managed top speed was for a few brief moments on the upper estuary. With a 3 or 4 metre swell, I have yet to find it comfortable to maintain anything over 25knots.... I'm sure the boat's good for it, but I bottle out
Saying that though, it's handy when there's a wave taller than you, behind you to be able to push the stick down and stop it depositing itself on the stern of the boat.

-Alex
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Old 25 April 2006, 16:17   #16
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What is people's average cruising speed. Quick Exit seems comfortable at 35/6 knots doing about 4500 rpm, to break 42 knots we need to be doing 5500 rpm. But I'm finding I just want to go flat out all the time. Is this just newbie enthusiasm?

That's why I've been thinking about changing props etc, to squeeze some extra knots.
I had that right up until the first time I filled it up with fuel

Well this is by most peoples standards on here but I find mine will cruise at 18-20 for best fuel economy and my engine sounds entirely happy up to about 4500 which gives about 28 knots I think, though fuel consumption rockets. 5000 and over and the engine sounds a bit thrashy which is ok in small doses but gets tiring. And then filling it up gets even more tiring... normally I don't cruise for any length of time at more than 4500 and the gauge goes down quick enough at that.

It isn't really worth lots more speed for me as once outside the harbour the number of days when you can even do 30kt is going to be pretty limited due to the South Atlantic having more than a few potholes in
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Old 25 April 2006, 16:31   #17
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High 20s. Maybe 30.
3800 / 4000 rpm

Engine sounds happy.
Ground covered quickly.
1.1 miles per litre.
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Old 26 April 2006, 17:39   #18
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Its interesting reading this.

I've had three RIBS now.
One 6.7 with a 140 which was doing 28 - 30 knots which I found a little slow but it did that through pretty much any weather
A 5.5 with a 150 which was like a rocket ship when it topped out at 53 knots but it was down right dangerous when it was rough or you hit a ripple!

My current boat is a 6m with a 135 and does 43knots, comfortably in a nice weather wide weather window and does a good job of meeting what I want the boat for.

I was worrid when I bought the 6m that I' get bored after the 5.5 but not at all. Its a different beast altogether and just as much fun.

I'v had access to other boats which are very fast and I think its fair to say you can't really enjoy long distance crusing above 50knots cause the forces on your body turn a cruise into an exercise in holding on for grim death!! Its ok for short blasts, not for the whole day!

Chris
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Old 26 April 2006, 19:11   #19
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Would be interesting to know how smaller ribs and sibs perform .
I tried my little honda out for the first time at the weekend to see what It will cruise along at loaded with lots of fuel the three of us and camping gear .

OK don't laugh

3 adults and 25L in the fuel tank plus cooler box etc . Its flat out at 18.5 knots , and cruises easily at 15knots with the throttle backed off qiute a bit .. It seems to plane at about 10 knots .
I figure from this that even a bigger engine would be a waste of time although a 20 is stated as the max .
I have yet to test it running light but it feels a lot faster maybe 22 knts

shit i feel like Del Boy here in his plastic pig
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Old 26 April 2006, 19:21   #20
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Originally Posted by ian parkes
Would be interesting to know how smaller ribs and sibs perform .
I tried my little honda out for the first time at the weekend to see what It will cruise along at loaded with lots of fuel the three of us and camping gear .

OK don't laugh

3 adults and 25L in the fuel tank plus cooler box etc . Its flat out at 18.5 knots , and cruises easily at 15knots with the throttle backed off qiute a bit .. It seems to plane at about 10 knots .
I figure from this that even a bigger engine would be a waste of time although a 20 is stated as the max .
I have yet to test it running light but it feels a lot faster maybe 22 knts

shit i feel like Del Boy here in his plastic pig
Alot of people on this forum including myself started off with a SIB, and have found that small boats are often more fun than bigger ones. SIBs are very easy to use due to their portability, and low running costs. 18.5knots loaded isn't bad at all, my 4m RIB and 40HP Suzuki 2stroke only did around 25knots and i bet that burned alot more fuel than your Honda!
Once you have caught the bug it won't be long before you buy a RIB of some description.
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