magnetman
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Posts posted by magnetman
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PS it is 'PS' not 'pS'.
Post Script. Arguably it should be Ps.
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It could have been 2011. I have 5 yar lapses in concentration and as he (@gibbo) spent more time messing around with lead acid batteries than most people do thinking it is unlikely he knows anything about lithium.
Well anyway. Referring to batteries. No Clopixol.
LTO batteries are quite interesting.
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11 minutes ago, TheBiscuits said:
Tagging won't work.
you have to say that you heard he died.
I heard that he died.
Ita probably a bit late for this as he died ages ago ! I think it was around 2016.
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I'm a Trump voter.
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1 hour ago, GUMPY said:
Better to post the video
Seems to remember an edited version with just the let it go bit 🤔
Have you seen the 'I'm a hoe version?'
Very funny but also very explicit.
Disclaimer: If you watch this an are offended don't moan.
It is funny though given how Elsa made her pimps so much cash.
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This was the Les Allen Boat I had.
Originally a wooden top I cut it all off and got a steel cabin put on then planked the deck.
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18 minutes ago, MJG said:
The thing is IanD most I would guess don't really know or in fact care who is correct. Simply because most don't have the technical knowledge to decide, this isn't the 'engineering' type forum populated by obvious geeks like you where no doubt such subjects are gone into intense detail and depth.
What we do see is someone who at each and every opportunity tries to trample down somebody else's knowledge 'because IanD is the 'expert on just about bloody everything boating' THAT is what is boring. Just try for once shrugging your shoulders and saying 'ok it doesn't really matter if somebody doesn't agree with me' because in reality it simply doesn't.
It's an internet forum it's not a University lecture.
https://en.m.wikipedia.org/wiki/Ne_supra_crepidam
Careful now !
Beware of the ultracrepidarians.
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I wonder how an insurance company would deal with a Boat where someone had decided it was clever to run the water system directly from the mains supply. I know two Boats which were almost sunk by doing this.
Its not uncommon for it to happen on moorings with water supply. Insurance companies must have a policy about how to deal with this behaviour.
The geyser who does the maintenance at the mooring said he has seen people have put the hose through a window and presumably attached it to the system on the Boat to bypass the pump and provide better pressure. Probably mainly for showers.
In fact the CRT have had to put warning stickers on the water tap bollards because of the water board becoming concerned about potential issues if a Boat were to sink while connected to the mains water supply.
I've always had tanks and pumps as lile a floaty Boat.
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12 hours ago, peterboat said:
Actually lots of modern diesels have throttles now,
My 1960s Perkins P4 in one of the Boats has the speed controlled by a butterfly valve in the air intake.
@Tony Brooks knows about this one I think the high pressure pump is controlled by vacuum rather than mechanically.
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I was simplistically thinking a piston moving downwards would be sucking in air.
Love a bit of education !
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It would be interesting to experiment with ducting using the air intake of the engine to pull cold air across the alternator. Obviously this could have a negative impact on engine performance. Maybe an intercooler would be nice.
35 minutes ago, nicknorman said:
Being a diesel there is a lot of air going through the engine even at low power.Interesting theory.
I would have thought a petrol engine of the same displacement would shift more air as it will tend to have a higher rpm.
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Some tests needed. I also wondered if it would blow the charging coil if the battery was discharged. There are no loads other than the starter and almost zero self discharge (0.1v in 18 months) on these batteries but interesting to know how the coil would handle a flat battery demanding a lot of power. Would it blow up or would it regulate.
The outboard has a manual start so it is designed to work with a flat battery.
I reckon with a bit of work a 2 cyl 4 stroke outboard could be modified to make a really nice silent generator.
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1 minute ago, blackrose said:
It depends on how well a boat steers I guess. My boat is also 57x12ft and it's not exhausting to steer with a tiller. I'm not sure I really understand why you think it would be?
Did you take it to Lechlade ?
I was commenting about the top end of the Thames. I expect in most places it would be fine.
5 hours ago, Mad Harold said:Another way is to paint the outboard in a distinctive colour or stripes or polka dots.
I like the idea of Polka dots.
My Honda outboard has GBR (GB Rowing) printed on the cowl so they all think I nicked it when in fact I bought it. It is amusing at times having the only privately owned Eton Racing Boats coaching launch on the Thames.
I'm going to get a megaphone.
Also small torpedoes.
5 hours ago, Tony Brooks said:One thing that may need checking out if going for an outboard, especially with a fair bit of solar. I don't know about the Obs, but the 12V "battery charging" output on the Honda inverter generators is not voltage regulated, so a bit like old-fashioned transformer battery chargers. This means that as the batteries charge, the charging current drops and the voltage rises. It seems that it can reach a level that will destroy the battery. This is far more likely to happen if solar has already give the battery a good charge.
If the output is regulated, however crudely, then it should not be a worry.
I still haven't put a volt meter on the Lithium Titanate battery I use to start the Honda 10. I am assuming it will be around 14v and the top voltage before venting is around 18v so it should be okay.
Voltage regulation on outboard motor charging coils is definitely quite interesting for someone who uses one a lot.
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Thats what Nigel's was like. I think the bath was done with vertical pieces but could be mistaken.
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If there is a travelpower unit then it seems possible to run a 48v LFP charger from it.
Maybe not very efficient.
Other option is use less energy on the Boat.
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Outboard motors above 6HP have remote portable fuel tanks.
Someone can probably find an exception but this is a pretty good rule.
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Some of the rack mounted 48v LFP batteries look nice.
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4 hours ago, Bacchus said:
Similarly duped here...
I made a small custom basin out of wood for the camper - off-cuts stuck together with sikaflex and a few coats of Danish oil. The base is ply, easily cut with a hole-saw and fitted with an off-the-shelf plug 'ole.
Thats great.
I went on the late great Nigel Moore's narrow Boat a few yars ago and he had an amazing wash basin made from wood but it was a shaped basin. He also had a wooden bath which was quite impressive.
Must admit that I did not think of using wood.
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Wrap the string around then pull it downwards?
flexible masking tape is interesting stuff.
That plastic cable wrap stuff could be a fun toy. I used it to make the aluminium pipe conveying the solar panel wires look better.
If you get the right size it will cling onto a round bar or tube nicely and you can pull one end it will stretch quite symmetrically.
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3 minutes ago, pedroinlondon said:
This is an ex lifeboat ...
As for the oil change and maintenance in these past 17 years... not sure it happened.
That is an interesting point.
There may be a standard maintenance regime to take care of ageing generally.
It is a bit unlikely, if you bought it after it was decommissioned, that there will be hours on the engine.
Interesting engine to play with.
Full service always a wise move anyway.
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Nice fireplace !
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I can't tolerate hand sanitiser due to sensitivity.
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18 minutes ago, Tony1 said:
As an aside, for boaters like yourself who might possibly still be afloat in about 25 years from now (i.e. after the 2050 ban on IC engines), maybe GRP will become the norm?
After all, you'll be able to drive a GRP along with a 10hp motor, whereas a 57ft steel narrowboat will need at least 30 hp in some places, and 30hp electric motors might be very expensive. The cost of an electric conversion at the moment is absolutely prohibitive for many boaters, especially when you consider the batteries and installation.
With a lower power motor you'll need less batteries and a much cheaper motor, so GRP boating might be the only affordable option for a lot of people. I can imagine we might see a big rise in GRP boat numbers, and the builders will be very busy.
Asides are always good.
That would be ironic as GRP is a problem material. Just look how many end of life GRP Boats end up cluttering waterways. It is hard to dispose of. Taking the Thames as an example there are plenty of waste GRP Boats on weirs and in random other places. Its a real problem.
Aluminium would I think be better.
If one had a water ballast one would be able to alter the air draft and getting on and off height according to circumstances.
Not sure how good this would be with narrow Boats though.
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Lithium Batteries installation
in Boat Equipment
Posted
Jt would never be pS.
Not in a millenium.
It is Great to hear this.