Man 1050hp 1993

[BartW]

Anyway, I'll tell you what: don't waste your time on those tables, particularly the fuel burn numbers.
At any given power, the difference between one engine and another is neither here nor there, in real world - not to mention in the great scheme of boats TCO.
The usage is bound to affect your fuel bill MUCH more, i.e. D vs. P speed, when talking of P boats - as I suppose you are interested in, judging by the engines.

fully agree,
fuel consumption is mostly a function of boat weight (size) and speed,
on this size of engines / boats, fuel consumption is function of the power that has to be delivered.
surely each engines and each hull have a sweet spot where they perform best.

my engines are 25y oldfashion mechanically injected,
and still I'm often surprised that consumption is relatively low compared to some neighbour more modern boats,
but then we sail her never faster than 20kn/2000Rpm, and apparently that is her sweet spot.
Neighbours with similar but more modern boats, on average they navigate faster than us, so...

In D mode, again there is huge difference between 7, 8, 9, or 10kn, just the threshold for going out of D mode
while we sail A LOT at 10kn, I know that I can reduce consumption per mile significantly by doing 8 or 9kn.

so agree with Mapism, don't focus on the engine curves,
but yes its part of the exploration when looking for a big old boat ;-)

when you want to know the consumption of a specific boat, asc on here, there might be posters that can give real world figures from the type of boat / engines you're looking at.

 

[lambohill]

The usage is bound to affect your fuel bill MUCH more, i.e. D vs. P speed, when talking of P boats - as I suppose you are interested in, judging by the engines.
Apropos, was the boat repowered? I would have thought that the 1050 wasn't around yet, in 1993.:

Yes, agreed usage is more relevant, just nice to know what you can from whatever is available

Not repowered as far as I know, but I have not yet seen with my own eyes.
The few examples I see at this age all are advertised as man 1050, around 3 different boats, but of course adverts may be inaccurate.

It appears that the model i am interested in only came with these engines at this time, but as above so are the 2001 models advertised as same, so I guess I will know when I look.

later models 2005 or so on list as the 1100 hp man.
So if adverts are right, its a take it or leave it on the engines.

 

[lambohill]

fuel consumption is mostly a function of boat weight (size) and speed,
on this size of engines / boats, fuel consumption is function of the power that has to be delivered.
surely each engines and each hull have a sweet spot where they perform best.

so agree with Mapism, don't focus on the engine curves,
but yes its part of the exploration when looking for a big old boat ;-)
.

Thank you.
At first look the graphs seemed more informative, but of course when thought about, they are only on the engines with an agreed prop design, and the hull design and displacement will affect the load profile and therefore performance figures on the prop demand. Following advice....Kinda over that now......:encouragement:

As you say, when exploring the world of big old boats, it is all part of the journey, and of course the interest!

It appears all the examples I see advertised in this era, claim to use the man 1050, later ones man 1100 and newer revised model a man 1340hp or so.

So I guess if I like it on other counts, then its part of the package.

I really just wanted to see if it is known to be avoided for actual common & serious faults, rather than perhaps being less desirable, than say a v12 or other engine, as it appears there were no other options offered by the builder in the era I am looking at, albeit that I have not physically seen the engines as yet.....and of course they may not be as broker advises!

 

[MapisM]

Yup, I fully agree with your last summary. :encouragement:
Anyway, just FYI, yesterday I re-checked my files and I can confirm that back in 1993 the V10 engine was only available with mechanical governor and 820hp output (D2840LE401).
I can't tell you for sure how many years later the 1050hp version (D2840LE403) was released, but definitely not yet in 1993 - not to mention that quite often you will actually find 1992 engines in 1993 boats.
My guess, if the boat is 65+ feet, is that engines are actually D2842... (i.e. 12 cyl), either 1000 or 1100hp version.