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Search took 0.01 seconds. Search: Posts Made By: rom
Forum: Multihull Sailboats 01-04-2020, 19:28
Replies: 2
Views: 989
Posted By rom
Re: Lagoon 450 bow sprit

The only difference I see is the attachement to the crossbeam is a rail on the L440 whereas it is fixed on the L450, which is fine. Other than that it looks ot be made of the same 80mm x 2mm...
Forum: Electrical: Batteries, Generators & Solar 23-03-2020, 08:38
Replies: 6
Views: 609
Posted By rom
Re: Idea: Alternators send AC to Wind type Controller at house bank

Quite the opposite, cf. skin effect. FWIW, I am using 70sqmm cables for about 14m round trip, 200A@12V alternators. That leads to about 0.5V loss. I can leave with it. I removed the bluesea switch in...
Forum: Multihull Sailboats 07-03-2020, 22:37
Replies: 50
Views: 13,831
Posted By rom
Re: Lagoon 450... Am I crazy singlehanding?

I just do it from the flybridge (best possible point of view over the anchorage). In most conditions I don't bother pointing to the wind. I just throw the anchor where I decided was the right place,...
Forum: Electrical: Batteries, Generators & Solar 07-03-2020, 02:02
Replies: 90
Views: 25,496
Posted By rom
Re: can you make a 12v alternator into a 24v alternator

If it has an external field input (as opposed to self excited) you may feed it 12V and connect its output to a 24V battery. It may not be able to provide enough voltage at low speed though. If you...
Forum: Multihull Sailboats 06-03-2020, 13:53
Replies: 48
Views: 21,250
Posted By rom
Re: Asymmetrical Spinnaker Vs Gennaker

You know the main difference between outremer 45 and outremer 4X ? the latter has a big genoa instead of the self tacking jib... and a small jib on a removable stay. You may do the same. Or buy a...
Forum: Multihull Sailboats 06-03-2020, 13:43
Replies: 50
Views: 13,831
Posted By rom
Re: Lagoon 450... Am I crazy singlehanding?

I sometimes allow one of my guest to help me. It takes about twice the time. As for the flybridge, I will access the port deck twice as fast as the other guy on his L450S would (we might be even to...
Forum: Multihull Sailboats 06-03-2020, 11:27
Replies: 48
Views: 21,250
Posted By rom
Re: Asymmetrical Spinnaker Vs Gennaker

It is hard to believe you don't get more speed with a proper code-0 in light winds. Maybe that was very close reaching (what AWA is that ?) and winds not so light ? My genoa is 43sqm, code-0 I think...
Forum: Multihull Sailboats 06-03-2020, 06:21
Replies: 48
Views: 21,250
Posted By rom
Re: Asymmetrical Spinnaker Vs Gennaker

Nice boat ;-) I don't understand why you have an asym and no prodder. If no prodder, then a sym spi is the obvious choice, isn't it ?. It also seems to me you are comparing two very different sails. ...
Forum: Deck hardware: Rigging, Sails & Hoisting 04-03-2020, 12:26
Replies: 11
Views: 1,135
Posted By rom
Re: Howto attach a spinlock xts to an aluminium bowsprit

My initial thought but the rigger here told me the biggest rivets are about 6mm and I really need a 8mm countersunk screws for those xts spinlock. He told me he would find a solution if I bring him...
Forum: Deck hardware: Rigging, Sails & Hoisting 03-03-2020, 07:15
Replies: 11
Views: 1,135
Posted By rom
Re: Howto attach a spinlock xts to an aluminium bowsprit

Good idea and rather simple ! but I am afraid I will not be able to tighten the screws enough without bending the tube ... unless someone did it already ?
Forum: Deck hardware: Rigging, Sails & Hoisting 03-03-2020, 06:48
Replies: 11
Views: 1,135
Posted By rom
Re: Howto attach a spinlock xts to an aluminium bowsprit

Thank you Slug, is it a universal rule or something specific to aluminium ?
Forum: Deck hardware: Rigging, Sails & Hoisting 02-03-2020, 12:14
Replies: 11
Views: 1,135
Posted By rom
Howto attach a spinlock xts to an aluminium bowsprit

Hi, I believe I have to use 8mm screws. The aluminium tube is 2mm thick, 80mm diameter, 1m long. I need something strong enough for a 90sqm code-0 2to1 halyard...
Forum: Crew Positions: Wanted & Available 28-02-2020, 06:18
Replies: 16
Views: 4,462
Posted By rom
Re: Who can give us Sailing lessons onboard catamaran

AFAIK there are 2 local companies with dedicated catamaran training, ACM and Apaca. I don't think they provide any certification, but why would you care ?
Forum: Marine Electronics 12-02-2020, 03:55
Replies: 74
Views: 17,422
Posted By rom
Re: Is there such thing as goin tooooo big on my alternator upgrade?

Interesting ! So it seems there is no problem with the bearings of crankshaft and water pump or any other parts whatsoever, at least up to 8hp for the 4JH3 series. What is the name of this document ?
Forum: Multihull Sailboats 11-02-2020, 10:11
Replies: 108
Views: 23,103
Posted By rom
Re: New entry level catamaran from Lagoon, FP and R&C?

What about this:
https://www.bali-catamarans.com/en/catamarans/bali-catspace-sail/
Forum: Electric Propulsion (EP) 10-02-2020, 13:05
Replies: 780
Views: 104,351
Posted By rom
Re: Jimmy Cornell goes Electric, with a Cat

Basically your "consumption" is proportional to your income (or more precisely to your spending). Whatever you choose to buy. Simple. You want to reduce your consumption ? stop working, stop making...
Forum: Marine Electronics 10-02-2020, 12:28
Replies: 74
Views: 17,422
Posted By rom
Re: Is there such thing as goin tooooo big on my alternator upgrade?

350A. and obviously 350A@12V. I am not familiar with such alternators but I guess you can expect 70% efficiency. So it's more like 8hp that's it is extracting at full power.
Forum: Marine Electronics 10-02-2020, 12:22
Replies: 74
Views: 17,422
Posted By rom
Re: Is there such thing as goin tooooo big on my alternator upgrade?

Technically it would be much easier to have one single big alternator and to control its output (from 0% to 100%) with a "dimmer" on the field. Even simpler a big alternator that you can field switch...
Forum: Rules of the Road, Regulations & Red Tape 09-02-2020, 14:59
Replies: 21
Views: 1,607
Posted By rom
Re: SPAM

Good to hear, I thought selling valid user email was at the heart of every forum business model (in addition to advertising, needless to say)
Forum: Lithium Power Systems 09-02-2020, 01:48
Replies: 58
Views: 8,168
Posted By rom
Re: Critique my LiFePo4 Plan!

And the cable should then be rated what ? 200% of alt output ? Is this really practical when talking 200+A alternators ?


Why would you add such design complexity and voltage drop when you can...
Forum: Multihull Sailboats 08-02-2020, 01:41
Replies: 543
Views: 98,471
Posted By rom
Re: Catamaran tacking angles , really that bad???

If you do the math you mlght as well do it right. 7.5 x cos(65) ~= 3.17 knots VMG to the wind. Now, gsuescum did not say that 40AWA is the best he can do. he says he can easily get up 30AWA. And it's...
Forum: Lagoon Catamarans 06-02-2020, 12:29
Replies: 16
Views: 3,409
Posted By rom
Re: Lagoon 470 request for information

I can't remember, is it balsa below the WL like the 570 ? in which case you might want a thorough moisture test. Other than a very bad surprise there, I guess everything can be repaired for a...
Forum: Marine Electronics 04-02-2020, 01:17
Replies: 74
Views: 17,422
Posted By rom
Re: Is there such thing as goin tooooo big on my alternator upgrade?

Yes, it is called a rectifier. Not an inverter. it is super cheap (doesn't have to be MG), works pretty well, and can be external to the alternator. The other part is called a voltage regulator, it...
Forum: Lagoon Catamarans 04-02-2020, 00:56
Replies: 6
General Info: 2019 Lagoon sales data
Views: 3,958
Posted By rom
Re: 2019 Lagoon sales data

Could someone explain what this document is ? How is it related to Lagoon ? Is it this supposed to be exhaustive multi worldwide sales ? Also do you understand it as VAT excl. unless specified ?
Forum: Flotsam & Sailing Miscellany 03-02-2020, 14:45
Replies: 83
Views: 18,138
Posted By rom
Re: Robertson vs Phillips headed screws

As a wag I would say 90% of the screws on my lagoon are Posidriv, #2. I suppose the same goes for every beneteau, which makes a lot of boats on the water ... So I have a very good PZ2 srewdriver and...
Showing results 1 to 25 of 500
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