Search found 39 matches

by sgr143
Thu Dec 21, 2017 5:42 pm
Forum: Engines & transmission
Topic: Best pitch for a 14 inch prop on a Centaur with a beta 20
Replies: 5
Views: 1438

Re: Best pitch for a 14 inch prop on a Centaur with a beta 20

Hi Steve - I would hazard the opinion that if your engine will reach 3600rpm with ease it's probably a bit "undergeared" and upping the pitch a bit will enable you to get a bit more go out of the engine without overburdening it. If it gives you even half a knot more shove when needed again...
by sgr143
Fri Dec 15, 2017 4:54 pm
Forum: Hull, Deck, Rigging & Sails
Topic: Sail Cover
Replies: 9
Views: 1834

Re: Sail Cover

Thanks Simon - I'd better find that bit of paper, or go visit the boat with a tape measure again! I have a day or so's worth of mostly inside-boat work stacked up now, so I'll brave the A34 / M3 / M27 on Sunday, perhaps. Why is it that the M27 seems to have a far higher fraction of mad speeding driv...
by sgr143
Tue Dec 12, 2017 8:47 pm
Forum: Hull, Deck, Rigging & Sails
Topic: Sail Cover
Replies: 9
Views: 1834

Re: Sail Cover

Hi Simon - which boat do you have? I'm looking for a new sail cover for a Merlin, and this one is massively cheaper than others I've seen. Is the quality much worse than the x-hundred pound ones? I did measure up my boom and sail but I've lost the bit of paper! I'll do it again next time I'm down. S...
by sgr143
Wed Nov 22, 2017 12:11 am
Forum: Instruments & electrics
Topic: Wiring in Centaur mast
Replies: 20
Views: 5662

Re: Wiring in Centaur mast

Wow - that's what I call a Top Tip!

I might need to use it soon, too...

Thanks!
by sgr143
Tue Nov 21, 2017 11:59 pm
Forum: Hull, Deck, Rigging & Sails
Topic: Rotostay II - bearings need replacing?
Replies: 12
Views: 2343

Re: Rotostay II - bearings need replacing?

"You might (should?) be able to slide the whole shebang downwards off the forestay"

Unfortunately not, I fear, as the forestay rotates with the foil. I'll have a look anyway. You never know.

Becoming gradually reconciled to expense of eventually giving in and having the mast off.
by sgr143
Tue Nov 21, 2017 11:56 pm
Forum: Hull, Deck, Rigging & Sails
Topic: Fitting Jackstays to a Merlin
Replies: 4
Views: 1099

Re: Fitting Jackstays to a Merlin

I had a look at a neighbouring boat in the yard and chatted to the owner, and am now a bit happier about attaching jacsktay ends to deck cleats. He said that it didn't noticeably impede usage of the cleats with mooring warps.
by sgr143
Thu Nov 16, 2017 9:19 pm
Forum: Hull, Deck, Rigging & Sails
Topic: Rotostay II - bearings need replacing?
Replies: 12
Views: 2343

Re: Rotostay II - bearings need replacing?

Had another look at it today. It may well be, as has been sugggested,that it is the bearing up at the top end of the foil/stay that is the issue. Looks like this might be a mast-off job. I went up the mast today to try to re-load the spinnaker halyard that should go over the sheave just below where ...
by sgr143
Wed Nov 15, 2017 12:12 pm
Forum: Hull, Deck, Rigging & Sails
Topic: Fitting Jackstays to a Merlin
Replies: 4
Views: 1099

Fitting Jackstays to a Merlin

"Fit Jackstays" is on my to-do list for the winter. Problem - what is the best way of attaching them? Merlins don't have a perforated toerail, so I can't do it that way; I'm loath to tie the ends to the deck cleats, as I'd like to keep them clear of obstructions for their primary use for m...
by sgr143
Sun Nov 12, 2017 10:05 pm
Forum: Hull, Deck, Rigging & Sails
Topic: Rotostay II - bearings need replacing?
Replies: 12
Views: 2343

Re: Rotostay II - bearings need replacing?

The number of (bearing) balls* I've lost that way in working on bikes (pedal and motor) over the years .... ! A useful reminder, Roger, thanks. I've been told that the bearings in the rotostay are assembled units, but I will exercise caution on dissasembling them. If I ever get that far, that is. My...
by sgr143
Sat Nov 11, 2017 4:37 pm
Forum: Hull, Deck, Rigging & Sails
Topic: Rotostay II - bearings need replacing?
Replies: 12
Views: 2343

Re: Rotostay II - bearings need replacing?

Thanks Steves both. A problem with changing to a new system is that (I have been told) the foresails have a large diameter boltrope that fits the foil on the rotostay system, but is too big for other systems. So if I changed to Plastimo or Furlex or whatever, I'd be in for more expenses on adapting ...
by sgr143
Sat Nov 11, 2017 1:04 pm
Forum: Hull, Deck, Rigging & Sails
Topic: Rotostay II - bearings need replacing?
Replies: 12
Views: 2343

Rotostay II - bearings need replacing?

The Rotostay on my Merlin feels very "notchy" when turned - (I thought it was a bit hard to operate when sailing, and now the boat is out of the water with the sails off I've been able to give it a bit of a better check over). It has preferred positions about 30 degrees apart, and has to b...
by sgr143
Mon Nov 28, 2016 8:43 pm
Forum: Instruments & electrics
Topic: Merlin - "Deck lights"
Replies: 5
Views: 2320

Re: Merlin - "Deck lights"

Thanks both. I have only a standard steaming light, and nothing else on the mast front as far as I can tell. There is a cable up to the masthead for a triclour and anchor light, but it's not connected to "deck lights"; nor actually, at the moment is there an actual light at the masthead an...
by sgr143
Mon Nov 28, 2016 1:24 pm
Forum: Instruments & electrics
Topic: Merlin - "Deck lights"
Replies: 5
Views: 2320

Merlin - "Deck lights"

A mystery! My Merlin's switch panel has a switch for "deck lights" - this controls a wire tagged "4" coming from the panel, which goes to a Green/Yellow wire from the multiblock connector, which then disappears off somewhere into the bowels of the boat. But I can't find or work o...
by sgr143
Mon Oct 17, 2016 8:53 pm
Forum: Hull, Deck, Rigging & Sails
Topic: Air draft of a Merlin
Replies: 4
Views: 1675

Re: Air draft of a Merlin

Thanks Nigel. One of those times when one can't see for looking! Yes, so with waterline to mast step of about 2m, vhf aerial on the top too, I should be going for 15m clearance to have even an uncomfortable safety margin. Not Fareham , then...
by sgr143
Mon Oct 17, 2016 4:54 pm
Forum: Hull, Deck, Rigging & Sails
Topic: Air draft of a Merlin
Replies: 4
Views: 1675

Air draft of a Merlin

Does anyone know what the air draft of a Merlin (28) is? I was thinking of venturing up to Fareham on Wednesday around high tide; propititious for getting up to Fareham quay for lunch, but less so for getting under the powerlines that guard the upper reaches of Fareham lake. (12m above HAT). The inf...