How much boat is required.?

[schmalex]

Tell me about it! On the yacht I race, we put 5 litres in at a time to save weight when racing inshore. Offshore, we put enough in to motor at Jill speed for 6 hours (the minimum requirement).

Filling the powerboat up was eye watering

[Roverload]

blueg33 said:

Lost soul said:

Sorry but that is a horrible old nail

Disagree - okit looks pretty sad at the moment but its quite obviously a project. I have seen muchj worse restored to glory

that pic is two years old, she's done topsides, she didn't originally have a wheelhouse as such, just a "windscreen" cant link pics on my phone but google tod tornado if anyone's interested. Stunning, cant quite work out why it was interfered with so much!

[schmalex]

Very pretty. I did think, behind the refit, that it had quite Fairey-esque lines. From the Google pictures, it seems to be one of those boats that can look very right (or very wrong if fitted out in river boat style).

Keep it true to being a sea craft and you're on to a winner IMO

[Roverload]

I know what you mean, i take it you're referring to the converted river boat with the obnoxious canopy? Not sure there's alot i can do about the rounded cabin windows though!

[schmalex]

Just don't put net curtains up or tint the windows!

[XJSJohn]

Roverload said:

Sorry to hijack the thread but I have a motor boating (hehe) question, my boat is 30 ft, weighs in a 6400kg with 2 Bmc 2.5 diesels they drive 2 props underneath with a flat bottom (no keel to speak of) , not had her in the water yet as she's a long term project, what sort of running costs am I likely to be looking at at current fuel prices knocking around Falmouth bay compared to say an amble through the French canals? Anyone who can shed any light on this would be great.

Ian

sounds like a freeman, probably about 1.5 - 2 gallons / hour at about 7 knots.

[hidetheelephants]

V8 Fettler said:

There are some pretty boats on this thread, but I'd like one of these please:



Diesel, so very economical.

Upwards of 1000l per hour, yes very frugal.

[Roverload]

schmalex said:

Just don't put net curtains up or tint the windows!

Ultimate aim is to bin the massive windows, replace all with wood and shape in some much smaller ones, it makes the whole boat look cheap IMO.

[Roverload]

XJSJohn said:

Roverload said:

Sorry to hijack the thread but I have a motor boating (hehe) question, my boat is 30 ft, weighs in a 6400kg with 2 Bmc 2.5 diesels they drive 2 props underneath with a flat bottom (no keel to speak of) , not had her in the water yet as she's a long term project, what sort of running costs am I likely to be looking at at current fuel prices knocking around Falmouth bay compared to say an amble through the French canals? Anyone who can shed any light on this would be great.

Ian

sounds like a freeman, probably about 1.5 - 2 gallons / hour at about 7 knots.

That's not too bad then, I plan on pootling down the French canals around 5 knots, maybe on just the one engine if possible, gotta get her in the water really and give it a go!

[XJSJohn]

Roverload said:

XJSJohn said:

Roverload said:

Sorry to hijack the thread but I have a motor boating (hehe) question, my boat is 30 ft, weighs in a 6400kg with 2 Bmc 2.5 diesels they drive 2 props underneath with a flat bottom (no keel to speak of) , not had her in the water yet as she's a long term project, what sort of running costs am I likely to be looking at at current fuel prices knocking around Falmouth bay compared to say an amble through the French canals? Anyone who can shed any light on this would be great.

Ian

sounds like a freeman, probably about 1.5 - 2 gallons / hour at about 7 knots.

That's not too bad then, I plan on pootling down the French canals around 5 knots, maybe on just the one engine if possible, gotta get her in the water really and give it a go!

the french "canals" do have some current / flow on them but in general, one wing at 5 knots most of the time is feasible, but every now and again you will need to run away from some bloody huge barge who will not be pootling along

a good tip is to get a blue board rigged so that you can stick it out the starboard side of the boat, its teh inland waterway signal for "reversing navigation" so as to pass starboard / starboard, very handy when going with the current and wanting to cut a corner a bit, its also good to know as the big boys will be doing it too!!!

[V8 Fettler]

hidetheelephants said:

V8 Fettler said:

There are some pretty boats on this thread, but I'd like one of these please:



Diesel, so very economical.

Upwards of 1000l per hour, yes very frugal.

Oh I don't know, 6600bhp at 1000 litres of fuel per hour compares reasonably well with typical 130bhp diesel cars at max power, on the back of my fag packet anyway. Of course, Deltic wins on noise, ceremonial starting procedures and being generally impressive.

[hidetheelephants]

V8 Fettler said:

hidetheelephants said:

V8 Fettler said:

There are some pretty boats on this thread, but I'd like one of these please:



Diesel, so very economical.

Upwards of 1000l per hour, yes very frugal.

Oh I don't know, 6600bhp at 1000 litres of fuel per hour compares reasonably well with typical 130bhp diesel cars at max power, on the back of my fag packet anyway. Of course, Deltic wins on noise, ceremonial starting procedures and being generally impressive.

Are you prepared for the wallet violation that will happen when you call up Rolls Royce and you say you've got 2 time-expired military power Deltics that need a teardown? That said I think the worst operational problem the septics had with them was resonance destroying the synchro gears and causing the rest of the engine to sympathetically fall apart, usually through the throttle man being stupid.

[Fishtigua]

The Merc V8 turbo 1650hp race engine runs on 112 octane race fuel, if you uprate to run on pure alcohol, it bumps it up to 2000hp.

Would those old Delts run any harder on alcopops?

[hidetheelephants]

Fishtigua said:

The Merc V8 turbo 1650hp race engine runs on 112 octane race fuel, if you uprate to run on pure alcohol, it bumps it up to 2000hp.

Would those old Delts run any harder on alcopops?

Opposed piston engines can run multifuel, they are relatively tolerant as long as the injection gear can cope. I doubt there are performance gains to be had though, except via using them for charge cooling.

[guillemot]

blueg33 said:

Wing Keel

Made me think of this chap - I know it's a wing, but I bet he didn't make any sudden movements...

http://www.yachtingmonthly.com/news/531499/aground...

O/T Ttwiggy where are you based - you say East Coast? We're Walton way...

Edited by guillemot on Friday 12th September 17:57

[Roverload]

XJSJohn said:

Roverload said:

XJSJohn said:

Roverload said:

Sorry to hijack the thread but I have a motor boating (hehe) question, my boat is 30 ft, weighs in a 6400kg with 2 Bmc 2.5 diesels they drive 2 props underneath with a flat bottom (no keel to speak of) , not had her in the water yet as she's a long term project, what sort of running costs am I likely to be looking at at current fuel prices knocking around Falmouth bay compared to say an amble through the French canals? Anyone who can shed any light on this would be great.

Ian

sounds like a freeman, probably about 1.5 - 2 gallons / hour at about 7 knots.

That's not too bad then, I plan on pootling down the French canals around 5 knots, maybe on just the one engine if possible, gotta get her in the water really and give it a go!

the french "canals" do have some current / flow on them but in general, one wing at 5 knots most of the time is feasible, but every now and again you will need to run away from some bloody huge barge who will not be pootling along

a good tip is to get a blue board rigged so that you can stick it out the starboard side of the boat, its teh inland waterway signal for "reversing navigation" so as to pass starboard / starboard, very handy when going with the current and wanting to cut a corner a bit, its also good to know as the big boys will be doing it too!!!

Thanks for the advice, as you have probably guessed i am a complete novice, i have bought a mountain of books on the subject, then proceded to loose the 2 important ones on the french canals. Not a great start!

[V8 Fettler]

Fishtigua said:

The Merc V8 turbo 1650hp race engine runs on 112 octane race fuel, if you uprate to run on pure alcohol, it bumps it up to 2000hp.

Would those old Delts run any harder on alcopops?

Deltics were developed up to about 5,500bhp on the test bed, but became pointless for maritime use when gas turbines were introduced.

[V8 Fettler]

hidetheelephants said:

V8 Fettler said:

hidetheelephants said:

V8 Fettler said:

There are some pretty boats on this thread, but I'd like one of these please:



Diesel, so very economical.

Upwards of 1000l per hour, yes very frugal.

Oh I don't know, 6600bhp at 1000 litres of fuel per hour compares reasonably well with typical 130bhp diesel cars at max power, on the back of my fag packet anyway. Of course, Deltic wins on noise, ceremonial starting procedures and being generally impressive.

Are you prepared for the wallet violation that will happen when you call up Rolls Royce and you say you've got 2 time-expired military power Deltics that need a teardown? That said I think the worst operational problem the septics had with them was resonance destroying the synchro gears and causing the rest of the engine to sympathetically fall apart, usually through the throttle man being stupid.

I'm sure there will be someone in the Colchester area who could be lured out of retirement to provide an alternative to RR. Deltic was very definitely not squaddy proof, even starting the things created risks of catastrophic mechanical failure if the correct procedures weren't followed.

[TTwiggy]

guillemot said:

Made me think of this chap - I know it's a wing, but I bet he didn't make any sudden movements...

http://www.yachtingmonthly.com/news/531499/aground...

O/T Ttwiggy where are you based - you say East Coast? We're Walton way...

Edited by guillemot on Friday 12th September 17:57

On the Medway, down near Chatham.

[blueg33]

guillemot said:

Made me think of this chap - I know it's a wing, but I bet he didn't make any sudden movements...

http://www.yachtingmonthly.com/news/531499/aground...

O/T Ttwiggy where are you based - you say East Coast? We're Walton way...

Edited by guillemot on Friday 12th September 17:57

Steering failure my arse. So many people think that they can cut across that bank, even at high water we can barely do it with a bilge keel drawing 6ft. Sailing boats do it because they see power boats do it