Mph = Knots?

Re: lost cap cure

If they fall at that speed they are protected by crash helmets and padded life-jackets, still hurts like hell, but they do re start and normally make up the lost ground, broken limbs are rare normally sprains and bruises, called my skier the dope on the rope, they had to be super fit to run at those speeds and dedicated, training most nights and skiing most weekends.

So far this year the teams have raced on Windermere, Milford Haven Wales, Whistable Kent, Vienna, Belgium on the canals, around 6 more in the UK then Holland, Spain, then over to long Beach in California for the World Championships in October.

Offshore races run for 50 mins, the support races for Ladies, Juniors, and Veterans runs for 40 mins, in shore sprint races are around 20mins normally 2 races each event.



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Loch Lomand

I agree with Alistair,

Loch Lomond must be one of the nicest places to cruise in the UK. I trailered up last year on a 25ft Extreme and was very impressed with the facilities, the scenery and the islands.

Beautiful, shame its so far from London.

On the speed thing the Extreme did about 55mph with 280hp short block on a bravo. Use a hand held GPS if you really need to know.


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Re: lost cap cure

A friend of mine used to race. The problem wasnt falling off on the straights - but the speeds on the corners as you are whipped round are scary. He gave it up after two bad falls - the first gave him a detached retina, the second time the opthalmic surgeon told him that he had a choice between racing and going blind next time. He retired there and then.

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blindness

Eek. I think actually the choices were "pack it in" or "pack it in and be blind". Not a difficult choice. But you must get bump about a bit in a fall, for a retina to peel off?

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Re: blindness

I guess - he thought he was doing about 100 knots when he hit the water ... this was some years ago - no doubt they are going quicker nowadays.

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I'm really concerned you can't work out the relationship between mph and knots yourself from first principals. Surely you know a mile is 5280 feet and the mean figure for a nautical mile is 6080 feet? If not, I do wonder a) what you did at school and b) if you should be driving a boat at all.

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I think you are being a wee bit unfair there, I know how long a mile is, however we were never taught at school how long a nautical mile was, as i am sure a lot of people weren't, why would they, sailing never came into it, it was a normal comprehensive school not a nautical school. I also have made it clear that i am new to this game, and if not knowing how to convert my mph into knots is a problem for you then i am sorry, My boats speedo reads in mph so why would i want to knowwhat it is in knots, why! Because i want to learn, and learning is what i am doing. I am also booked to do my powerboat level 2 certificate. The fact of the matter is i agree its crazy you can go out and spend a £100k on a boat and not need a licence, where as spend £500 on an old car and you MUST have a licence, where is the logic in that, For you to say that i shouldn't be driving at all is offensive when i am trying my best to learn and become a better sailor.
We all had to start somewhere, we are not all old hands like yourself!!!!!!

However thanks for the critisim!!!

Alistair..

P.s Judging by your principles! Did you go to school?



<hr width=100% size=1><A target="_blank" HREF=http://www.hamptonandmcmurray.co.uk>Hampton and McMurray</A>
 
IMHO - I think at 5,500 RPM you are over reving. I have ahd a look at the following which you might be interested in <A target="_blank" HREF=http://www.boattest.com/test-results.asp?ID=409&lg_username=&from_gi=Yes>http://www.boattest.com/test-results.asp?ID=409&lg_username=&from_gi=Yes</A> You'll see that the test results pull to 4,800 which I would say is about right.
Given your recent "newness" to power boating I would get a bit more expereince under your belt before opening your boat up. Its a bit like giving a learner driver a Porsche/forums/images/icons/wink.gif I boated out of Kip for three years and loved it. Up round the Kyles and overnighting on Bute. And in the early part of the season thye snow refelctong off the hills was a wonderful site as the only wake you hit was your own. Get over to Largs quick as you can!

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Can these engines be over reved, do they have a rev limiter on them?
The manual says use full throttle from 10 - 20 hrs, but i don't want to over rev it and cause some damage. I shall need to check the sizes of my props, if they are smaller would that make it rev higher?
Why did you move away from Kip? Would you recommend Kip over Largs?

Thanks

Alistair....



<hr width=100% size=1><A target="_blank" HREF=http://www.hamptonandmcmurray.co.uk>Hampton and McMurray</A>
 
I doubt you will have a rev limiter, so the answer is yes in exactly the same way as if you start going over the red line on your car rev counter, sooner or later soemthing will give! When they say full throttle for X number of hours it means you can start opening it up, not that you must go everywhere at maximum, plus I'd not like your fuel bill/forums/images/icons/wink.gif. If your propped wrong then you will over rev if to smal and loose revs if too big. I'd check, lets face it Bravo 3 running nice duo stainless props which are wrong for you will be expensive. If you bought from Stan, - get him to check the props for you.
The reason I moved from Kip was based on the fact that I lived in North Berwick and found the drag from East to West was becoming a bit of a drag. I traded in against a ttailable boat from Stan the Man actually. This gace me the option of boating in the Forth and running over to the West for holidays. As to Kip vs Largs. Kip was closer! In real terms there did not seem a lot to chose othere than Kip was closer to Bute and also when coming in by road from Glasgow. Oh, and there was a petrol station right opposite the entrance.

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Why is the duo stainless steel props wrong for me? I didn't buy from Stan, i bought it from a dealer in Swansea.

Do you not think that Kip is getting far too big?



<hr width=100% size=1><A target="_blank" HREF=http://www.hamptonandmcmurray.co.uk>Hampton and McMurray</A>
 
I did'nt think Stan "did" Rinker, but then you know Stan/forums/images/icons/wink.gif The bravo 3 leg as far as I'm aware only comes with stainless props so that's not the problem. Its just if there not right for the boat - or your boating conditions, a new set is expensive so better to get it sorted out now while you may still be able to change the props rather than leave it to late. Check when you have it serviced or just ring around some other Mercrusier dealers and ask what the max should be. I coul dbe talking complete b*******xs, but 5,5k seems to high for that engine. Does it sound as if its over reveing, and do you have any thing left on the throttle?
I'm going back about 5 years now and I've not been back to Kip since then. But its all realative when you boat down on the South coast anyway. There is another post on the forum refering to all people who use the Solent being mad/forums/images/icons/smile.gif

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KIP versus Largs...

Alistair, is your boat Petro or Diesel?

If Petrol, please note that Kip only does Diesel whereas Largs does both.

Also, IMHO, Largs has better facilities.

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It don't sound like its over revving, but i hate that thought even in a car, i think i would take it up to full throttle and then pull back a wee bit just to be on the safe side. As i said in the origonal posting i have found a preffered cruising speed of about 3500 rpm which i think is okay.
You need to visit Kip soon again, it has changed so much in the last few years.

Cheers..

Alistair..



<hr width=100% size=1><A target="_blank" HREF=http://www.hamptonandmcmurray.co.uk>Hampton and McMurray</A>
 
Yes, Petrol..

And to be honest i've always prefered Largs.

I think i may need to have a word with them,



<hr width=100% size=1><A target="_blank" HREF=http://www.hamptonandmcmurray.co.uk>Hampton and McMurray</A>
 
I think 3,500 would be good.You are also probaly at your most fuel effiecient any way. As your expereience grows you'll know what is right for you. The great thing about having the power is you don't have to labour getting on the plane, get up quickly using the power, throttle back and get more miles, be they statute or nautical, to the gallon. Good luck.

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