Nordhavn 62 a someone help put me off this pleeease!

[TwoHooter]

The Nordhavn has 450 hours on the get me home motor I think, which seems high....

The high hours on the wing engine are because it has a hydraulic PTO for driving the two hydraulic thrusters.
I wish we had the same arrangement. Our wing engine drives nothing except the folding prop which means it's a nuisance to run and as a result suffers from excessively low hours. I am going to make myself run it more often this year.

 

[kashurst]

I would definitely keep the catamaran
Just as fast, arguably faster on occasion, and great to live on, anchor out etc, two engines, big sails.
Oh yes, and free! Enjoy,

 

[benjenbav]

I would definitely keep the catamaran
Just as fast, arguably faster on occasion, and great to live on, anchor out etc, two engines, big sails.
Oh yes, and free! Enjoy,

Pointing out that something already owned but on which a considerable amount of money has already been spent is 'free' makes you a zen master of man maths. Congratulations :encouragement:

 

[Portofino]

I would definitely keep the catamaran
Just as fast, arguably faster on occasion, and great to live on, anchor out etc, two engines, big sails.
Oh yes, and free! Enjoy,

Agree — not sure what that Nordie would bring to your party ,apart from a delay in entering a liferaft.

 

[kashurst]

Pointing out that something already owned but on which a considerable amount of money has already been spent is 'free' makes you a zen master of man maths. Congratulations :encouragement:

Thank you. If anyone needs help justifying an expensive, but clearly a life changing and obviously essential purchase,. I'm sure I can help for a small %. ;-)
Top tip, make sure you break the news whilst walking along an expensive shopping street whilst closing in on a highly prized purveyor of ladies shoes.

 

[MapisM]

The high hours on the wing engine are because it has a hydraulic PTO for driving the two hydraulic thrusters.
I wish we had the same arrangement. Our wing engine drives nothing except the folding prop which means it's a nuisance to run and as a result suffers from excessively low hours. I am going to make myself run it more often this year.

Are you saying that because you know the specific boat, or just based on the ad specs?
If the first, well, I would have never specced the boat that way, and I'd modify it pdq if I should purchase her.
If the latter, that's not what I understood when I read the specs.
They do mention that the wing engine has a PTO hydr pump that powers the thruster and the windlass, but I assumed it's meant as a backup of the main engine pump, which is bound to be installed also to drive the ABT stabs anyway.
Besides, in the event of a disabled main engine, being unable to use both the anchor and the bow thruster would be critical - the first for obvious reasons, and the latter because in anything but a flat sea it's probably impossible to keep such battleship straight with the rudder alone, while slowly making way with the wing engine.
But having to run the wing engine to operate either the windlass or the thruster wouldn't make much sense, imho.

PS: I would also guess - but obviously nobody better than yourself can confirm or correct as appropriate - that your boat has no wing engine driven pump because both the windlass and the thruster are electric?

 

[superheat6k]

Look every time I go out I pretend mine is a Nordhavn. If you can, you MUST.

 

[Bouba]

There are certain words, (like ‘rode’, ‘anchor’) that get people passionate on this forum. Nordhavn is one of those words

 

[Portofino]

There are certain words, (like ‘rode’, ‘anchor’) that get people passionate on this forum. Nordhavn is one of those words

It’s a bit “ kings new suit “ @ 60ft +
Surely at this transoceanic size at 8 knots you are better off with a yacht .
In a Tardis like manor over a certain size ( WL length ) yachts come into there own .
Not talking some crappy. French 40 odd footer with 6/8 pax which keel is likely to snap off with a puff of 1/2 decent wind .
For the same brass a nice 70/80ft dare I sat it “ blue water yacht” is a better prospect comfort wise all round .imho .

So what’s the USP of a large mobo doing single didget speeds ?,
When wind is free and faster in the Atlantic !

 

[Richard.C]

So what’s the USP of a large mobo doing single didget speeds ?,
When wind is free and faster in the Atlantic !

I'm not that good with heights so never needing to be winched up an 80' mast to retrieve an errant halyard would be one reason for me.

However after seeing a video of the N86 if I had a few spare millions that would be my choice and cruising speed is probably more like 10 knots.

 

[Nigelpickin]

So what’s the USP of a large mobo doing single didget speeds ?,
When wind is free and faster in the Atlantic !

They tend to travel in the direction required rather than the direction dictated by the wind.
They travel at consistent speed over ground rather than the speed dictated by the wind.
They can be easily stabalised for the rough stuff.
Cost of admission in terms of skill is lower.

So perhaps a twin engined boat with a pair of hulls and meaty sails for when things are blowing the right way is the best set up for me, which is what I’ve got, even if it is French and a bit crappy

 

[Portofino]

Was thinkIng for l———- ong periods on board in long passages true blue water then at a certain L ( not exactly sure how L tbo ) then a big yacht s capability starts to overlap Nordies and cost to buy etc .
The sail dir or zero wind issue - they have motors , need electrics and Water maker any how .

Here’s a suggestion.A bit less functionality in terms of lnterior fit out compared to a Nordie .
https://www.fraseryachts.com/en/yacht-for-sale/odysseus/

 

[Bouba]

Was thinkIng for l———- ong periods on board in long passages true blue water then at a certain L ( not exactly sure how L tbo ) then a big yacht s capability starts to overlap Nordies and cost to buy etc .
The sail dir or zero wind issue - they have motors , need electrics and Water maker any how .

Here’s a suggestion.A bit less functionality in terms of lnterior fit out compared to a Nordie .
https://www.fraseryachts.com/en/yacht-for-sale/odysseus/

I never figured you as one of those hot tub boaters

 

[Portofino]

I never figured you as one of those hot tub boaters

Correct - that would be to go .:encouragement:
Buts there’s plenty of headroom in the cost to phaff with a mini refit etc

 

[MapisM]

So what’s the USP of a large mobo doing single didget speeds ?

The fact that for crossing oceans at two digits speed you need an even larger one, I reckon...

 

[TwoHooter]

My understanding is that Nordhavn have destroyed the mould for the 62

You are right. They usually do destroy the moulds for discontinued models unless they form a starting point for a new model - eg: the N52 uses a substantial proportion of the N47 moulds. Sadly, last year they announced they are destroying the moulds for our boat, the N40, because the market demands ever larger boats, and the last order for a 40 was in 2013. However the 40 is still listed on the website so perhaps they have changed their minds.

Are you saying that because you know the specific boat, or just based on the ad specs?
If the first, well, I would have never specced the boat that way, and I'd modify it pdq if I should purchase her.

Here is a good explanation of the thinking behind using the wing to power hydraulic thrusters:-
Thrusters use a LOT of hydraulic power. As a first step, the pump on the main engine needs to be increased from 28cc to 75cc. That's almost 3x the fluid flow. But when you are operating thrusters, the engine will typically be at idle, yielding minimal flow from the pump. That's one of the reasons the displacement needs to be increased so much, but it's still not enough. Just the main engine can deliver enough power to run either thruster at full power, but not both at the same time. To get the extra power, we will once again be turning to our generator, which will also get a more modest pump upgrade from 28cc to 45cc. As a side note, this is where many boats choose to draw the extra hydraulic power from the wing engine. When entering or leaving port, you fire up the wing and rev it up to 2000 RPM or so, and it provides the extra hydraulic power. It's also a great way to ensure the wing gets regular exercise.
Tanglewood Blog
But I should have said, my comment was an assumption only. I don't know anything about the N62 in the advert.

PS: I would also guess - but obviously nobody better than yourself can confirm or correct as appropriate - that your boat has no wing engine driven pump because both the windlass and the thruster are electric?

Yes, on our boat both bow and stern thrusters are electric and the only thing the wing drives is the folding "get you home" propeller. Because I am a novice and we have gone through tight locks many times (link, link) I have used the thrusters quite a bit. I have never had one "time-out" on me which is often one of the reasons people choose hydraulic thrusters rather than electric.

 

[Bouba]

TwoHooter, do you know what size stern thruster you have on your Nordhavn? I’m thinking of upgrading mine, my boat is short and tall and docking in a beam wind is a pain. A few baseline numbers would help me in my calculations

 

[alant]

They tend to travel in the direction required rather than the direction dictated by the wind.
They travel at consistent speed over ground rather than the speed dictated by the wind.
They can be easily stabalised for the rough stuff.
Cost of admission in terms of skill is lower.

So perhaps a twin engined boat with a pair of hulls and meaty sails for when things are blowing the right way is the best set up for me, which is what I’ve got, even if it is French and a bit crappy

Used to be called "Steamer Routes", to go where conventional windboats can't, bit like Star Trek.

 

[Zing]

It’s a bit “ kings new suit “ @ 60ft +
Surely at this transoceanic size at 8 knots you are better off with a yacht .
In a Tardis like manor over a certain size ( WL length ) yachts come into there own .
Not talking some crappy. French 40 odd footer with 6/8 pax which keel is likely to snap off with a puff of 1/2 decent wind .
For the same brass a nice 70/80ft dare I sat it “ blue water yacht” is a better prospect comfort wise all round .imho .

So what’s the USP of a large mobo doing single didget speeds ?,
When wind is free and faster in the Atlantic !

Compared to a raggie, a mobo like this for the same initial expense gives lower running costs (sails and rigging costs a fortune and doesn’t last long), much more space, more comfort, much lower crewing requirements, much less physical effort, a no heel experience, a much shallower draft and fantastic visibility. If you want to equal the quality of space you need to spend a lot more on a sail boat too. A N62 is about as big as an 80 ft sail boat. That is at another level of running cost.

A cat cures some of the problems, but adds others. A cat is not capable without ridiculous expense of being made to the quality/solidity level of a N62 or similar monohull sailboat as they need to be light to work well. Also the size of an equivalent to a N62 will be big and expensive.

You have to enjoy sailing to want a sailing boat. (Which I do as you can guess from my avatar). I am thinking of having a change though.

 

[Portofino]

Compared to a raggie, a mobo like this for the same initial expense gives lower running costs (sails and rigging costs a fortune and doesn’t last long), much more space, more comfort, much lower crewing requirements, much less physical effort, a no heel experience, a much shallower draft and fantastic visibility. If you want to equal the quality of space you need to spend a lot more on a sail boat too. A N62 is about as big as an 80 ft sail boat. That is at another level of running cost.

A cat cures some of the problems, but adds others. A cat is not capable without ridiculous expense of being made to the quality/solidity level of a N62 or similar monohull sailboat as they need to be light to work well. Also the size of an equivalent to a N62 will be big and expensive.

You have to enjoy sailing to want a sailing boat. (Which I do as you can guess from my avatar). I am thinking of having a change though.

Thx I get the point about low crewing , heel , and latent sail / rigging costs neutralising the “ free “ wind argument.
I,am from a sail boat ,background, buts as the avitar infers somewhere else now