Outboard or not? For large vessel

[Shotts85]

Hi sorry if this is the wrong section or has been covered. New to forum

I'm looking at buying a classic motor cruser she has 55ft and is 18ton with a wartime fast hull.
She will be getting used for a liveaboard boat and will be static most of the time, so would it be possible to put an outboard on a removable mount on the transom so can get her to mooring and moving her to lift out of water for yearly clean, would be looking for max of 10knots I would think, what would your thoughts be

Thanks

 

[stelican]

Hi sorry if this is the wrong section or has been covered. New to forum

I'm looking at buying a classic motor cruser she has 55ft and is 18ton with a wartime fast hull.
She will be getting used for a liveaboard boat and will be static most of the time, so would it be possible to put an outboard on a removable mount on the transom so can get her to mooring and moving her to lift out of water for yearly clean, would be looking for max of 10knots I would think, what would your thoughts be

Thanks

From my limited knowledge of towing I think you would need at least 30hp to obtain 5knots.
I think you would be far better off getting towed to mooring and lift outs

 

[jrudge]

You will also need to ensure that the shaft is long enough so that the prop is not sheltered by the hull.

I would imagine this could be a challenge to move ( power aside).

You will be down the back and low. The front is 55 feet away .... You will have no rudder effect from the outboard so will be using power to move about ( not an issue) but if you combine that with general lack of power and not much visibility I think this could be "interesting".

I have a 58 foot flybridge boat, and that gives me control from the top of the boat and a decent view. I also have a bow thruster.

I am completely sure it is possible and someone will be along here in a minute to say they have done it, but the suggestion to get it towed seems a good one.

A question however .... if the boat is not moving why would you want the hull cleaned? The hull clean moves fouling that slows it down ... but it is not moving !

 

[Shotts85]

You will also need to ensure that the shaft is long enough so that the prop is not sheltered by the hull.

I would imagine this could be a challenge to move ( power aside).




You will be down the back and low. The front is 55 feet away .... You will have no rudder effect from the outboard so will be using power to move about ( not an issue) but if you combine that with general lack of power and not much visibility I think this could be "interesting".

I have a 58 foot flybridge boat, and that gives me control from the top of the boat and a decent view. I also have a bow thruster.

I am completely sure it is possible and someone will be along here in a minute to say they have done it, but the suggestion to get it towed seems a good one.

A question however .... if the boat is not moving why would you want the hull cleaned? The hull clean moves fouling that slows it down ... but it is not moving !

Her steering is all still there so if an outboard was added and locked in position it could be used for just propulsion?
The marina I'm looking at offer a free lift and drystanding for month a year so thought be good to get out clean and maintaine her as will be on a drying mooring, it's just thoughts at the moment and seeing what the best option would be as of cost of a tow over fitting an engine. She is 6miles from where she would stay if I was to get her. And would like to take her in on her own bottom not transported

 

[Tranona]

Her steering is all still there so if an outboard was added and locked in position it could be used for just propulsion?
The marina I'm looking at offer a free lift and drystanding for month a year so thought be good to get out clean and maintaine her as will be on a drying mooring, it's just thoughts at the moment and seeing what the best option would be as of cost of a tow over fitting an engine. She is 6miles from where she would stay if I was to get her. And would like to take her in on her own bottom not transported

Not a chance of moving it safely. You might get it moving but would have no control over which way it goes which will be determined by wind and tide. The rudder will have no effect as it needs a flow of water over it, which is why it is positioned aft of the normal propeller. Your outboard would not provide any flow over the rudder and the speed you would achieve would in itself not provide sufficient flow for the rudder to be effective.

The only sensible way of moving it is by tow and a decent workboat alongside would do the job, but even then 6 miles would be a challenge.

 

[Shotts85]

Cheers guys just looking at options and seem there against me lol, so guess a tow or refitting of inboards it may be
So no size outboard would be an option

 

[Shotts85]

The only sensible way of moving it is by tow and a decent workboat alongside would do the job, but even then 6 miles would be a challenge.

The move would be across the Solent from mainland to the Isle of Wight

 

[Angele]

The move would be across the Solent from mainland to the Isle of Wight

Are you buying one of the Motor Torpedo Boats parked in Haslar (by the lightship)?

I can save you a job. There is already one in Bembridge. Needs a bit of TLC, mind.

https://spitfiresofthesea.com/mtb-24/

 

[stelican]

The move would be across the Solent from mainland to the Isle of Wight

Well forget fitting an outboard no chance of making it across the Solent and for all the other reasons already mentioned in thread
I don't think anyone would be interested in commercially towing.
The only option you have is to find a yard very close to where boat is If it's on the Itchen Shamrock Quay or Saxon wharf (If the hull is sound) Don't know if they lift wooden boats

 

[Shotts85]

Are you buying one of the Motor Torpedo Boats parked in Haslar (by the lightship)?

I can save you a job. There is already one in Bembridge. Needs a bit of TLC, mind.

https://spitfiresofthesea.com/mtb-24/

Cheers looking at mooring at bembridge Aswel �� From what I can tell from pictures she is an ex torpedo boat unknown history of her before the 60s but was converted to a gentalmans yacht in the 60s but on drystanding over the solant at this time, is that one yours? How do they take to the mud at bembridge?

 

[Angele]

Cheers looking at mooring at bembridge Aswel �� From what I can tell from pictures she is an ex torpedo boat unknown history of her before the 60s but was converted to a gentalmans yacht in the 60s but on drystanding over the solant at this time, is that one yours? How do they take to the mud at bembridge?

Nope. Sadly, I live on terra firma. I was in Bembridge for the food festival and Oktoberfest back in September, and walked past the houseboats. Most looked lovely, although there was one that was ..... erm ..... not floating. Can't recall whether it was the one in the link in my previous post.

The mud there looks pretty soft, and that is what the Duver marina guys have assured me every time I park my boat (drawing 2.1m) on the other side. I should imagine a houseboat, held in the same place on every tide, quickly settles into her own little hole in the mud.

 

[Shotts85]

Nope. Sadly, I live on terra firma. I was in Bembridge for the food festival and Oktoberfest back in September, and walked past the houseboats. Most looked lovely, although there was one that was ..... erm ..... not floating. Can't recall whether it was the one in the link in my previous post.

The mud there looks pretty soft, and that is what the Duver marina guys have assured me every time I park my boat (drawing 2.1m) on the other side. I should imagine a houseboat, held in the same place on every tide, quickly settles into her own little hole in the mud.

Thanks