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Old 23 March 2004, 13:36   #11
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Country: Greece
Town: Gloucetsreshire
Boat name: GATO DI MARE
Make: MAR.CO
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Quote:
Originally posted by RLS
Manos, Have your Falcons arrived yet? How many on order again? - Is it 5?
No RIBs haven't arrived yet.
Delaaaaaaaaaaaaaaaaaaays and I'm not happy about it as is been costing me money New delivery date end April/mid May. Is a long story that I may discuss one day in this forum
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Old 23 March 2004, 13:57   #12
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Country: UK - England
Town: Margate / Ramsgate
Boat name: Ballistic
Make: Ballistic
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Engine: Yam HPDI 250
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Re: ONE LUMP OR TWO ????

Quote:
Originally posted by TIM
... you can always add a aux in necessary....
IMHO Don't entertain this option (been there, done that):

- It'll kick around in the bottom of the boat for months and months, get broken, scratched, sprayed with salt water...
- Will you be able to manuover it over the transom when required? (If you keep it on the transom, chancer are you'll break or loose it soon enough)
- Will it start when you want it to?
- Will it move the boat adequatly when you want it to?

If you are seriously considering an aux. you need twins - i dobout you are in this situation. Buy a single new engine, look after it and carry an anchor and a VHF.

That said and done i'll probably consider twins again in my next boat, but then again my conclusion will probably be a bigger single again.

Manos, with due respect, what value has your pictures added to this thread?
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Old 23 March 2004, 14:21   #13
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Country: Ireland
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Boat name: wizzard
Make: REDBAY
Length: 7m +
Engine: 225 optimax
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Twins for me

I love twins I love the grunt, I love putting twice as much fuel in , excellent manourvilibity, great in turns for pulling boards, etc etc, great relialibity.Ok it knocks a few knots off up top, if you really are concerned about top speed buy a jetski.However double servicing but great for fault finding as you have a complete set of spares on hand, for testing etc.We also have a 6.5 2x75 Fichts approx 1.2 l per nm flat out.We have ran one dry and returned on the other, We lost an engine bolt one day and we returned on motor no 2, we had one stuck in reverse as a cable popped out at the helm, we once had a blocked telltail and returned on the other.Our current fuel delivery is via a manifold we have one fuel hose longer than the other leaving the manifold, and we only ever lose one motor when one of our tanks empties.Two are definately the way to go. cheers gavin
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Old 23 March 2004, 15:13   #14
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Re: Re: ONE LUMP OR TWO ????

Quote:
Originally posted by Daniel
Manos, with due respect, what value has your pictures added to this thread?
Nothing
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Old 23 March 2004, 15:31   #15
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Country: UK - England
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Length: 5m +
Engine: Suzuki 115hp
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Mark, if your budget is constraining the hull to 6.5m but leaves you with sufficient funds to consider twin engines, go for one and spend the extra on a longer hull.

Unless, of course, there's another reason why you want two engines (cruising on own in remote area?)

Gavin - what's your max speed on one engine?
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Old 23 March 2004, 16:02   #16
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Country: UK - England
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Dont know if this will work...

http://rib.net/forum/showthread.php?...t=twin+engines
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Old 24 March 2004, 13:11   #17
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One engine

I dont think our example is a good example, we run 2 motors which are offset as our hull is a cat, its prob about 10 or 12 kts with 1 motor approx 35 kts with both
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Old 24 March 2004, 14:33   #18
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Country: UK - England
Town: Iver, Bucks, UK
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Engine: Mercruiser 1.7 diese
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Logically, with engines as reliable as they are now, go for one engine.

Psychologically, out in the middle of the channel with you’re family, get two engines.

No answer to the problem. I’ve been musing for years…. Good luck!

Mike C
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Old 24 March 2004, 16:47   #19
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Country: UK - England
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thanks guys, your combined wisdom is enlightening - what a great site!

MArk
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Old 28 March 2004, 10:22   #20
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Country: Greece
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Boat name: Baby Boomer
Make: Marco
Length: 6.4m
Engine: Mariner 175EFI
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One main + one small aux

My Mar.Co 6.4 runs like a bat outtta hell with a Mariner 2.5EFI 175
Easily does 45kt unloaded and will cruise all day at 35 with the bimini open!!!

I have a Mariner 15 at the back as auxiliary, lashed to the mounting plate and virtually unmovable by weather but I dont fly my boat on waves.
The little engine saved my skin once when the reversing cable broke on reverse in a harbor and a line cat was approaching... Just untied the lashings and pulled on the cord, vroom ..... outa here!
Keep the little tyke serviced and running, you never know when you might need it.
It will keep you from becoming a buoy.

Photo below shows my setup

A good idea is to have a four stroke aux, so you only have one tank line and no premix.

Also keep in mind that when cruising with family and kids it is irresponsible to have only one motor.

In Greece where Ribs are everywhere, it is illegal to venture more then 3 miles offshore on a single engine!
And this is one law I wholeheartedly agree with.
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