Bacchus
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Posts posted by Bacchus
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3 hours ago, magnetman said:
@Bacchus have you asked Linssen?
they are a quality and reputable Boat maker so they might know the specs of your propeller.
I wrote to them this morning when @Peugeot 106 suggested user groups. Interestingly just back from sanding the hull, opened this thread and their reply came to say that they think they will be able to help and asked for a hull number. Now that's a company!
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32 minutes ago, Peugeot 106 said:
Assuming your boat is the same as the picture next to you could you find an owners association or whatever and compare notes. You could make adjustments for power and rpm if they were different but you never know you might happen upon a similar boat and engine.
That's my old Fjord - the new boat is a Linssen and there is an active owners association which is a good shout!
41 minutes ago, agg221 said:...I also agree that dezincification would be surprising as most props are made of bronze, which is a copper tin alloy or naval brass which is copper tin zinc where there is enough tin in the alloy to be protective. A zinc copper brass would be possible, but not generally used as it would be vulnerable to corrosion.
29 minutes ago, Tony Brooks said:Surely bronze contains no zinc, only tin, unless it is so-called aluminium bronze. Brass is the stuff that loses zinc.
Good and valid points. I am not a metallurgist, maybe the term is used generically for any leaching from an alloy? I am going on what the surveyor says which is
5 minutes ago, LadyG said:I'd not be expecting anyone to identify a number, what I mean is I would hope he is interested enough to help identify your needs, and suggest a product.
I would have thought that the numbers on the prop might mean something, similar to a hall-mark, but they seemed to think it was a part number. I have got an engineer working with me on it, and he says that he has used them before with good results.
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5 minutes ago, Bee said:
Never heard of a prop de zincifying, if it is bronze / brass/ yellow metal of some sort and has pink patches then it probably has lost its zinc but I am no expert and a proper expert might be what you need. T. Norris, Wood lane Isleworth would be my first choice.
Thank you - that is very close to me so a very welcome recommendation!
I think the de-zincing is quite a common feature with electrolysis - may be more of a salt water thing. A friend of mine has had the same with his sailing boat, but he has a self-feathering prop that will cost nearly £3k to replace...
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56 minutes ago, LadyG said:
I'd be inclined to ask a manufacturer, or specialist supplier, it would give me more confidence if he had a discussion, after all, the original may be the optimum spec, or it may not.
It was a specialist that told me he hadn't a clue what the numbers meant
42 minutes ago, Tony Brooks said:There are online prop calculators that will make a stab of what you want. You will need waterline length, hull type (displacement or planing), engine power and max RPM, gearbox reduction and the largest diameter the prop can be allowing for sufficient tip clearance, but I feel the results need treating as a guide rater than gospel and experience is always helpful. Just Google "marine propeller calculator" and play with a few.
Thanks - they sound to be based on the design curves which I am sure I've seen on the forum somewhere, but easier to use...!
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My 3-bladed bronze prop is giving more of a dong than a ding, the general opinion being that it is de-zincified and needs replacing
The old prop has the mark FMM 595 stamped on it, but the supplier I spoke to says it means nothing to him. He can measure the size and pitch if I get the prop to him, but to obviate cost and delay, I was wondering whether it's possible to specify a prop based on the performance required? E.G 8 tonne boat, 32', 100HP turbo-diesel, Most of its life on a non-tidal river at around four knots, with the occasional tidal "blast" up to about seven/eight. I guess the gearbox reduction would be a required stat too?
I am sure I have seen prop design curves on here, something to do with 'leccy boats, but can't for the life of me remember which thread, any pointers would be gratefully received.
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How did you enjoy working with the International two-pack? Mine came out yesterday, and, whilst the freeboard area isn't too bad, I am tempted to give her a once-over whilst I can do it on a ladder...
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Out of interest, what paint did you use? And is it as good as what was there - the stuff that's on these boats seems to set like rock with a smooth finish (maybe flatted after initial curing?), but I find things like International set more like "paint".
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4 hours ago, Tony Brooks said:
I doubt it is a cast iron hull, just iron and not steel. cast iron is something different.
Perhaps it's a Dutch bath not barge? (a very large Dutch bath, obviously...)
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8 minutes ago, GUMPY said:
Scancom works fine here on Lloyds, Nationwide, MHBS and Coventry BS financial apps/web pages.
I have yet to find a problem.
Nationwide seems to work okay for me, Santander keeps logging me out and populating lists like this...
ETA - just tried Santander whilst hot-spotted to Three; I was able to make a transfer to a current account, but when I clicked "back to my accounts" was taken to a log-in page, so it must be a combination of the page-design and the network access
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28 minutes ago, Rob-M said:
Direct Ethernet is only between your device and the router, the router is still using the APN to connect to the Internet.
27 minutes ago, IanD said:If you mean "direct Ethernet connection to the router" this makes no difference, CGNAT/APN are to do with the cellular link to the network, and it makes no difference whether you connect your device to the router over Ethernet or WiFi.
Indeed; I tried that yesterday before I'd read @Rob-M's post about CGNAT to see/eliminate whether it was the way the router was broadcasting -- if that were the case I could have broadcast via the "traditional" hard-wire router
2 minutes ago, GUMPY said:If you use the 3 APN you are effectively using the 3 system rather than the piggyback Smarty system. I don't have a live smarty SIM to test.
There is an alternative ditch Smarty and get a Scancom 3 SIM, you can't suspend it as you can Smarty but you would need to have Smarty suspended for 4 months a year before it's cheaper.
Three 500GB 5G Data SIM - 500GB Preloaded Every Month from now until 8th November 2026 - Perfect For Wifi Routers, Tablets & Phones (Expiry 8th November 2026) https://amzn.eu/d/2BdPGch
I was planning on getting a Scancom sim ultimately - the Smarty one is just a one-month test to see whether the set-up works. It hasn't passed with flying colours yet because of this CGNAT issue (which I have also noticed when hot-spotting the (Three) phone, so I don't think that the Scancom data sim will resolve it. web-mail not so much of a problem, but financial sites need to work seamlessly... unless I use (gulp!) "apps")
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Hmm, had to do a bit of Googling myself, but, yes, does sound like the CGNAT is the culprit rather than the APN - direct ethernet connection would bypass the APN and I have subsequently discovered that ethernet makes no difference...
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19 minutes ago, Rob-M said:
I had an issue connecting to a web hosting site because the connection details constantly changed so the site kept resetting the session. I can't recall the details but it was to do with the way Smarty provide 4G connectivity. I didn't find any way around it so couldn't administer the web site when I was on the boat.
sounds like the issue I am experiencing!
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2 hours ago, Paul C said:
Deleting cookies sometimes helps in this scenario.
2 hours ago, IanD said:It's *very* unlikely to be the router...
2 hours ago, Paul C said:Yeah its not in itself the router, but its because a different network path is used compared to eg home broadband with the same website. I dare say its the same laptop?
Same laptop - I will test connecting to the router with an ethernet cable (which seems to make a difference but I haven't tested specifically)
I have noticed the issue with the email client when using a hotspot on the phone so I think it's somehow connected to the method of access!
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I have an "undocumented feature" with the 5G router, and I wonder whether any of the learned members of this community might be able to pinpoint what is causing it (and, even better, what I could do to mitigate it...)
I am still getting very good performance from the NR5103E, however; some websites - in particular a browser-based email client but also some financial sites - seem to have session issues, and log me out. Santander was one of the worst, took about five attempts with page refreshes to get in and transfer some money to a current account, but same has just happened with Barclaycard I tried to make a payment, and it went "tips" up at the end. The site now says "your payment failed, try again" and yet if I try again I get an error saying that I can't have a positive balance.
with the email client, parts of the screen like the list of emails can be okay, but if I click on a message to read it, the message pain pops up a log-in prompt.
It seems to be something to do with style-sheets (sometimes the pages appear "in the raw" completely unformatted) or session management, any thoughts welcome! -
The NR5103E I bought claimed to be unlocked, but I haven't tested it with anything other than the Smarty (which is rebadged Three)
I bought the smarty to check that everything works before committing to a longer deal, and it seems to be working very well now. It was a bit of a faff (a massive faff) getting my win10 laptop even to find the network (which was weird because a win10 desktop had no problems, neither did an ancient laser printer, a modern phone, my blackberry...), but once that bridge was crossed it slipped easily into place
thanks all for the votes of confidence in Scancom. I will head back to their website when my one month smarty contract is up!
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7 minutes ago, IanD said:
Unless you want/need dual-SIM capability, the ex-Three NR5103E (not the v2) is probably currently the best buy for boat use -- unlike a lot of other routers it can properly use (4x4 MIMO) external antennas for all bands.
Plenty of good SIM options too (routers are unlocked), for example Smarty if Three works for you or 1pMobile for EE (one-month rolling contracts) or long-term pay-in-advance SIMs from Scancom.
Is Scancom legit? I saw a thread on here somewhere mentioning them, and got very close to pressing the button on one of their deals but
a) it seemed to good to be true (and we all know...)
b) Scancom is an anagram of scam and con... (c:
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I just bought a 5G router on eBay (the Three one, a Zyxel NR5103E as it happens, hundred and thirty squid) and a cheap sim from Smarty to replace the fixed line home broadband
speed test just now
Roughly eight times faster than the fixed line (got 500 Mb/s yesterday...!), for a lot less money. Obviously it depends on signal strength and is contested, but when I put my address into Three's checker, it doesn't think 5G is supported here.
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2 hours ago, MtB said:
Are you volunteering to cart away and dispose of the hull if I buy this boat and take the cones out?
You could make a fortune if you're right!
😂
Err...
I could chip in with some old petrol and a box of matches?
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27 minutes ago, MtB said:
An enticing idea indeed, especially given these cones come complete with an engine and all the peripheral bits and pieces one only finds one needs when actually trying to install something like this in an actual boat.
The thing that fatally discourages me is the 15 tonnes of rotting oak I'd also be responsible for disposing of, were I to buy these cones.
It can't all be rotten? Surely furniture makers could do a lot with the planks? I'd wager there would be a market in the canal community for a decent kitchen table made from wood salvaged from a historic boat?
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It depends how perfect it needs to be. When I do a job like that, I see the flaws; other people see "the whole of the moon" and don't notice the minutiae. Personally I would clean it with a bit of bleach and a toothbrush, then just use a bit of filler or even just a bit of reasonably-matched paint wiped over the exposed non-glazed area of tile. It won't be perfect, but it will probably be "okay".
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Excellent. I think what the BBC and the council seem to miss entirely, is that the looped boat suggests a snail; a creature which travels at a serene pace and takes its home with it!
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2 hours ago, magpie patrick said:
the mooring holding your boat down as the levels rise
A photo-history of that happening at St Aines this year. Feel very sorry for the boat and owner, but there was no attempt made at all to loosen the lines before it got too late...
Sadly when the river came up a little further...
Then after being submerged for a couple of months
and the tender headed off for an adventure of its own, and now lives on the weir at Penton Hook
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2 hours ago, mrpaulo said:
We have had a few holidays on canals and are forward planning, it will be an investment but one that will be for leisure not CC or liveaboard. So far we have only cruised canals, so perhaps hiring so we can try a river next time might be a good idea, the question was borne out of a lack of knowledge, but being aware that most of the reports of boats losing moorings or being affected by flooding seem to be when on a river.
Boats are never really "an investment", they are generally something you spend on because you love the life; that said, I have certainly made money on boats which I have improved, or simply through buying and selling at the right time. I have also lost money.
As others have said, levels on canals tend to be more stable in times of heavy rain (like the unprecedented wet season we have had on the Thames for the last six months), but properly moored and attended boats are usually fine. That can be in a marina attached to a rising pontoon, attached to sturdy posts with the ability to rise and fall with the water levels, or simply moored correctly for the conditions and attended when conditions change.
On rivers you can use wider, more "boaty" boats (or sturdy sea-going vessels), on the canals you have thousands more miles of exploring. I am Thames based and have a boaty boat - I know most of the river pretty well so exploring is pretty limited for me, but I still enjoy just being aboard either on my own or with friends. It's about a harmonious environment as much as seeing new places. I converted a camper-van a few years ago - that is terrific for seeing places...
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such a vague question, it's difficult to know where to begin
What does "looking eventually to buy a narrowboat" mean? At the end of this summer, or in thirty years time when you retire? And why a narrowboat if you're considering being on the river - narrowboats can, and do, spend time on rivers, even tidal rivers, but they are suited perfectly to canals.
If "eventually" means more than a year or two, why not try hiring both on a canal and on a river and seeing what you prefer whilst learning the difference?
5G router review - i found this very interesting....
in Boat Equipment
Posted
An update to this thread - I have now swapped the Smarty ("trial") sim for a Scancom Three version. Very good value and the banking/email pages seem to work as expected now suggesting that the Carrier-Grade Translation was pooling IPs and causing issues as suggested.
Weirdly I have just noticed that eBay thinks I am on a phone when I use 5G data, and presents what I assume is a version of its page designed for a 2 inch screen - but only on Firefox. MS Edge presents it normally. For the cost saving (a hundred quid for 500GB/month for a year, compared to around three hundred quid for Talk Talk (the truly awful Talk Talk!))
I know that this is primarily a boating forum, but the broad spectrum of knowledge is an invaluable resource, so a big thanks from me to members who have contributed!