Mercury V12 600hp Verado Outboard Engine

But interestingly on the reviews I have seen of the big outboard boats they are just bodges based on stern drive which then extol the virtues of the huge lazarette. It always seems such a waste and total laziness by the manufacture
true, but can you do much on a planning hull 42ft mobo J? seems to me that unless you raise (disproportionally!) the aft deck area, there's no way you can fit a cabin there. OK, Porto will come up with his Itama and some other open boats that have a massive sundeck and a cabin underneath, but still where the engine really was in inboards is too low to use as cabin space unless you're north of 45-50 and it seems that they don't do outboards there (yet)

What I'd really like to see is two of these monsters with motors rotated 90 deg so they don't protrude too much above w/l, AND an aft deck that covers them (hate looking at outboards tbh!) on a 45-48ft flybridge mobo.
Then you could have an aft cabin, AND a massive mid cabin, and your two bowish cabins and just use part of the area under aft deck/salon for tanks.
Not keen on open boats, not studied their layouts much, maybe same principle would work better in them...

No idea where you store your williams though :)

V.

PS. ah, and you could have a proper full width bathing platform behind these hidden monstrosities as well!
 
The weight has been mentioned. I had a 1990,s 200hp yamaha 2 stroke, v6.
It's weight was just under 200g so 600 hp worth would be heavier than the mercury.
My engine could suck dry a 25 litre outboard tank in 5 mins.
The biggest diesel outboard I'm aware of is the Cox 300. That is also quite some engineering with twin crankshafts if I remember rightly.
 
I wonder about this growth in massive outboards.

I get that diesel is now not “environmentally friendly” but not sure 7.6 litre v12 outboards are either.

Where on earth (in UK) will you use a motor that consumes that much fuel, when marina availability of that fuel is so limited? I’ve not had a boat for a few years now, but doubt dockside petrol is in every marina yet?


Still, the Yanks will love it and try to fit as many on the back of their oversized fishing boats as they can to compensate for their incredibly small *******....... (insert any term you like really)
 
I wonder about this growth in massive outboards.

I get that diesel is now not “environmentally friendly” but not sure 7.6 litre v12 outboards are either.

Where on earth (in UK) will you use a motor that consumes that much fuel, when marina availability of that fuel is so limited? I’ve not had a boat for a few years now, but doubt dockside petrol is in every marina yet?


Still, the Yanks will love it and try to fit as many on the back of their oversized fishing boats as they can to compensate for their incredibly small *******....... (insert any term you like really)
Petrol (Gas) is effectively free in the US unlike in Europe.
 
But interestingly on the reviews I have seen of the big outboard boats they are just bodges based on stern drive which then extol the virtues of the huge lazarette. It always seems such a waste and total laziness by the manufacture
Not this one. Totally new from the ground up.
 
I wonder about this growth in massive outboards.

I get that diesel is now not “environmentally friendly” but not sure 7.6 litre v12 outboards are either.

Where on earth (in UK) will you use a motor that consumes that much fuel, when marina availability of that fuel is so limited? I’ve not had a boat for a few years now, but doubt dockside petrol is in every marina yet?


Still, the Yanks will love it and try to fit as many on the back of their oversized fishing boats as they can to compensate for their incredibly small *******....... (insert any term you like really)

The UK is not really a market for large outboards, as fuel cost and availability is a big issue. A few 600's will find their way here, in much the same way that we see a few 300's/350's but I expect the biggest draw to the UK market would be the option of having a single 600 rather than twin 300's/350's. You'll get better speed and economy and, I expect, cheaper to buy.
 
True - but assuming something like that would burn what, 50 gal (say 230 lit per hr) you would want at least a 400 gal tank (say 1700 litres) so £2500 to fill up?? And its the availability.......


Is "Gas" virtually free in USA now?

It is $2.39 a gallon in Florida right now, which is way more than it used to be, but still a fraction of what we pay. I agree if you are quite well off these engines make some sense, but not over here!
 
If you look at any of the " haulover" florida vids with lots of expensive large boats it becomes apparent that the inboard is virtually extinct and two outboards is a minimum.
 
i agree.

I think the massive reduction in maintenance, availability of fuel, and that I think they "pose" more and cruise less, makes them almost no-brainers over there.

I think, given cost of fuel, availability of fuel and range we are less likely to adopt them in numbers here yet.

The real game changer will be a lightweight, cost effective, diesel outboard - they are not here yet, but I suspect they are going to come although whether “environmental” issues will beat them to it I don’t know..
 
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Most of the haulover boats are also bowriders centre consol style and 50ft seems quite common. The uk doesn't get the weather to make that style as popular here.
 
finally, they should be diesel as well!!!
missed that :rolleyes:
This would be an issue if cruising around the UK - so many harbours & marinas only have diesel. It makes long-distance runs actually quite hard to plan with petrol only. Especially with the amount these bad boys will consume!
 
This would be an issue if cruising around the UK - so many harbours & marinas only have diesel. It makes long-distance runs actually quite hard to plan with petrol only. Especially with the amount these bad boys will consume!
Time the U.K. caught up, I’d say. Diesel is fast becoming not popular...for a number of reasons. Excellent to see mercury now making petrol engines so efficient (in general) diesel can’t stay around too long...the way things are going, environmentally.
 
But these engines aren't efficient! ????

Don't start that "petrol is as efficient as diesel" nonsense agin - it isn't, it never ever will be.

Its quieter, smoother and more powerful weight for weight, but it is never going to be as efficient as diesel. And availability is rubbish in UK marinas.

What does a 450hp diesel inboard burn and compare that to a 450hp outboard, I bet the outboard is burning a good 25-50% more litres per hour
 
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