Fifty Feet of Grey (steel)

nice,

Rob, bow thruster hole is going to be done in situ?
Wouldn't it be easier for them to laser/plasma cut it in the factory.
You got a large anchor locker, well done! (I've been struggling all day with mine through the 35X30 hole and it's not comfy at all!)

cheers

V.
 
vas said:
nice,

Rob, bow thruster hole is going to be done in situ?
Wouldn't it be easier for them to laser/plasma cut it in the factory.
You got a large anchor locker, well done! (I've been struggling all day with mine through the 35X30 hole and it's not comfy at all!)

cheers

V.
Click to expand...

Hey Vas, you better get a move on or Rob will be in the water before you!
 
vas said:
nice,

Rob, bow thruster hole is going to be done in situ?
Wouldn't it be easier for them to laser/plasma cut it in the factory.
You got a large anchor locker, well done! (I've been struggling all day with mine through the 35X30 hole and it's not comfy at all!)

cheers

V.
Click to expand...

Bow thruster, yes, we will cut that with a plasma torch or even a hole saw. Its not that thick. The important bit is the central hole for lining up. Get that wrong makes it a bit more difficult. Any way, its one of many things that have been overlooked, (but not by me I may add) and yes... It would have been so much simpler to cut in the mill...

Anchor locker, that you can see, was originally designed to access via the forward cabin, hence the hatch cut in the forward bulkhead... I dont like this.... Its getting filled in. Or at least not for normal use. Possibly/probably cut another hatch on the top deck for access to chain locker, possibly made from plastic/grp or similar. Not steel, as seperate hatches imo rust, easy to chip paint etc etc... The thought of waisting space and losing that access for stowing ropes, kedge, or even just buoys and fenders....

Just been informed the drawings and layouts are complete..... But hes not showing me them... Yet..... Doh.....
 
Actually Vas, is it normal to not have access to anchor locker through the top deck, or just through forward cabin hatch....
My thoughts are there are plenty of other ready made hatches etc i could utilise and install for keeping fenders in, without cutting a really large hatch opening in the deck...

Whatever i do, I'm trying to make it look right, utilise available space, and work....
 
Great stuff Rob - all getting exciting now.

I definitely wouldn't have an anchor locker hatch in the bulkhead, into the cabin. Yuk. I've never seen that on this class of boat. I'd have a big deck hatch, or pair of hatches, that you can climb down through. These need to be custom cut not catalogue items, to match the shape of the boat
0920126Dec49.jpg
 
Thanks JFM
Can not currently see any images hosted via photobucket... Works firewall changed....

Anyway, i thought it was odd to start with...
I could do with buying you a gallon of ale one night and picking your brains :)
What i did not want was cut steel hatches, with propensity to corrode. We have same issues at work, where it doesn't matter of course, but the last thing I want is red decks and runs... I believe the loss of potential from the reduced contact with the hull, and its associated anodes, causes the greater corrosion issue.
 
Robg71 said:
Thanks JFM
Can not currently see any images hosted via photobucket... Works firewall changed....

Anyway, i thought it was odd to start with...
I could do with buying you a gallon of ale one night and picking your brains :)
What i did not want was cut steel hatches, with propensity to corrode. We have same issues at work, where it doesn't matter of course, but the last thing I want is red decks and runs... I believe the loss of potential from the reduced contact with the hull, and its associated anodes, causes the greater corrosion issue.
Click to expand...

That firewall is PITA! The picture was of my foredeck showing anchor hatches but nothing special and you can google image a thousand foredecks

Hmm yes I see hatches and edges are corrosion creators. Paint can chip on edges. Plus electrolysis, though perhaps you could use a grounding strap across the hinge to connect the hatch lid to the main hull and even out the potential

There is a cost and hassle issue, but given we are talking nearly flat surfaces you could make the hatch lids in GRP. The mould would be a flat surface with something like 2x1 to create the edges - not difficult to do? Lighter to lift too, esp if you foam core the GRP

Pint of ale anytime! :D
 
maverickofpoole said:
JFM, Rob offered you 8 pints....would love to see what you two came up with after that session :ambivalence::)
Click to expand...
Ah yes. That is actually quite a lot isn't it. It will need to be very long meeting :D

Anyway it's going to be me picking Rob's brains because I want to buy a welder and need some advice. I'll do another post - not hijack this one
 
JMF obviously wont mind me saving his bow hatches pic on my machine and posting it again here for Rob

matchII_bow_hatches.jpg


cheers

V.

PS. I'd also go for proper shaped hatches out of grp. Wouldn't like to be lifting a 10+kilo hatch to store my fenders....
 
Thanks Vas,
Yes, thats just the ticket.
The anchor pocket has gone out the window... Fifty foot boat does not carry it well, so back to a more standard affair over the front. I scaled one in, on a drawing, and it looks odd... Too big for the size of the boat... So we go for hawse pipe and a stainless steel scratch plate on the bow...


Grounding straps are fine, but I think we can make something lighter and more manageable for everyday use. Aluminium is out, which is unfortunate, as would be ideal weight/strength...
 
Robg71 said:
Thanks Vas,
Yes, thats just the ticket.
The anchor pocket has gone out the window... Fifty foot boat does not carry it well, so back to a more standard affair over the front. I scaled one in, on a drawing, and it looks odd... Too big for the size of the boat... So we go for hawse pipe and a stainless steel scratch plate on the bow...


Grounding straps are fine, but I think we can make something lighter and more manageable for everyday use. Aluminium is out, which is unfortunate, as would be ideal weight/strength...
Click to expand...

maybe plywood and epoxy.......now who's the expert, some guy down there in Greece I seem to remember!;)
 
Robg71 said:
The anchor pocket has gone out the window... Fifty foot boat does not carry it well, so back to a more standard affair over the front. I scaled one in, on a drawing, and it looks odd... Too big for the size of the boat...
Click to expand...
True as it is that you don't see many 50 footers around with pocket anchors, I would have thought that they could fit nicely on a boat like yours.
This is how they look on mine, which at 53' is quite comparable in size, fwiw (hoping that your firewall only locks "external" embedded pics but allows allows clicking on a direct link):
http://i23.photobucket.com/albums/b380/mapism/Bow_zpse74680a4.jpg

Re. deck hatches, you might be interested to have a look at these:
http://www.freemanmarine.com/Hatches2400Summary.htm
I've seen them fitted on various steel boats, including commercial ones. You won't find anything stronger and more longlasting.
Re. weight, they are still reasonable. Actually, even light, when you consider that they are hugely stronger than any grp hatch.

Btw, I agree that it's better to have a deck hatch on a steel boat, rather than on the bow bulkhead.
I suggested the opposite to Vas on his build thread, but only because his boat has a wooden deck.
 
Thanks MM
Ive seen those hatches before somewhere... Not just work...

Aha seaglaze are importers....

Nope... I have zero access to any photobuket... At all....

Thanks Rusty, i may give vas a shout :)
 
Yes, now that sort of thing is still a possibility, MM, and looks really good


I was looking as per original design... Think i have the link right...
To me it doesnt quite carry it off... Sometimes keep it simple is best...
This one is too low down on the hull, but, its really the only place they could do it with this hull shape...
1079-6075-1080-g2h.jpg
 
Last edited:
Robg71 said:
To me it doesnt quite carry it off... Sometimes keep it simple is best...
This one is too low down on the hull, but, its really the only place they could do it with this hull shape...
Click to expand...
Funny you should say that. I actually like the arrangement in your pic even better than mine.
From a functional viewpoint, the lower the point where the chain transfers the load to the hull, the better.
In most boats with pocket anchors (superyachts, typically), the placement is in fact just above the w/line.

Re. the KIS approach, yes, pocket anchors demand a bit more build work.
But on one hand, the difference shouldn't be night and day, at the build stage your boat is.
And otoh (and more importantly), the usage is as easy - if not easier - as with a bow roller.
Not to mention that if you wish to have two completely independent anchors, that's much better arranged with pocket anchors.

But each to their own, of course.... :)
 
I think its partly the size of the pocket in relation to the whole boat size.... I cant quite put my finger on it....
I will have another fiddle with some drawings, and see what i think your style of anchore pocket, with scratch/rattle plate, in the location of the white one above...
Plenty of time to get it right, on pen and paper yet...
 
I see what you mean, and don't disagree, purely from an aesthetic viewpoint.
Otoh, the shape is driven by the fact that the pocket is partially recessed under the hull surface - as opposed to my boat, where the anchors sticks outside completely.
Maybe you could cover the hull with a s/steel plate in front of the pocket, "filling" the triangle between the pocket and the bow profile, so to speak...
...just a thought.
 
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