pete
Junior Member
Posts: 56
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Post by pete on Jul 31, 2020 7:58:43 GMT
Just putting together frame D1 at the mo, and while my lamination cures, was wondering if anyone has already looked into suitable hatches for access through this bulkhead into the forepeak area? After a bit of googling, a size 60 yacht hatch appears to be one option (I think these are the biggest non-custom hatches available that will fit), but the square shape isn't ideal (could do with being more retangular really) - for the price of a size 60 hatch i'd prefer to have something a bit better suited. Wondering if anyone is doing anything different for the watertight hatch into this area.
This is, i think, the most competitively priced, size 60 hatch in the UK -
Keen to know of any other solutions/ ideas.
Happy building! (and happy Friday!)
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Post by Admin on Jul 31, 2020 15:01:26 GMT
When you build the double bunk, and then fit a 7.5cm mattress..then fit the hatch about 7.5cm above the mattress top opening into the forward compartment...you find it is OK and if you go to a Custom hatch the price goes through the roof. so good luck ...also we will be releasing the PLASTIMO BUILDERS PACKAGE in about three weeks....I am using all their Hatches ....
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pete
Junior Member
Posts: 56
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Post by pete on Jul 31, 2020 16:07:28 GMT
Double bunk? 7.5cm mattress?! - this is going to be a McIntyre Mini Nautor Swan huh?! I guess it'll be all round to Don's boat for after race drinks from the built in champagne fridge as well by the sounds of it! Seriously though - good news on the plastimo package - will wait before buying anything until that comes out to do some price comparing. I was originally going to precut the bulkhead for a known hatch aperture while the frame is on the bench, but i can do that later once installed, it'll be a bit more awkward, but not a problem. Still interested in other solutions people may be thinking of that might not be the typical off the shelf deck hatch - maybe custom fibreglass/plywood hatches with dogs and slotted hinges (pretty common though not straightforward to make, and i guess would need proof testing).
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Post by Admin on Jul 31, 2020 22:33:48 GMT
hahahaahah....yes the 5.80 has an after life and should have features like the French MUSKADETE with 3000 built!!!! in fact I am at the point now of deciding at what level we should make certain things below part of the One Design Class...and a Galley and Chart area and a bunk mattress are cool!!...for any club racing you would obviously strip the boat to save weight...and who needs the double bunk mattress,,,,so get it out....and then you just have a great storage locker...but you don't need the locker lids so best unscrew them and same with the saloon...have the absolute minimum....but??? for official 5.80 Trans-ocean events and even the two week championships....a boat you can be comfortable in is a lot more fun and if we all have the same it does not effect the overall outcome....so things to consider.. or things I am considering and final decision will come out in the Notice of Race...lets say for the Globe 5.80 Transat ...at least one compulsory 75mm Bunk cushion, ...should we all have a draining sink...which needs to be fitted as that will make your wife happy and stirs the imagination for weekend cruising later or compulsory locker lids for double bunk? ....so we shall see?? unlike the stripped out 6.50 class which is great fun we have a more inviting interior for this multi purpose Adventure mini and I think you will see some unique compulsory aspects for the mini Globe Race cause your going to be living in the boat for 15 months...and that is the essence of the class even though only a few will ever want to do that...it is the heritage of the class ....so the double bunk will be compulsory but the mattress optional ...all the best and your welcome to come over for drinks...I wonder how many can fit in and on a 5.80...now that is a cool challenge wowowowQ!!
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pete
Junior Member
Posts: 56
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Post by pete on Aug 1, 2020 11:43:02 GMT
hahahaahah....yes the 5.80 has an after life and should have features like the French MUSKADETE with 3000 built!!!! This is the first time i've come across these muscadet yachts - amazing and pretty inspirational! - France simply 'does' sailing better than anyone i think. I certainly see some of the Muscadet features in the design of the Mini 580 - after googling some images, there are some nice interior ideas i'll be copying too i think.
Regards the forepeak bunk - i was thinking of having sail bins (not sure what these would actually look like, but essentially the lightest weight tubing and fabric structure I could make at a sensible cost), some kind of food, water and parts storage (could be under a bunk i guess) and not a huge amount else. It would be super useful to know about any bunk requirements before we put the 'lid' on the boats at the deck planking stage. retrofitting a bunk top with all the parts having to go through a 500mm hatch is going to be a massive pain in the arse.
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martellmarine
Junior Member
Husband & wife team building boat #71.
Posts: 61
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Post by martellmarine on Aug 1, 2020 21:22:28 GMT
Interesting that the double fwd bunk structure is compulsory but not the mattress. Why would you need it if you don't have the optional mattress? Is it structural? Perhaps a way to divide the space up for storage? Would love to hear more about the vision for this space from a storage perspective.
Cheers.
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Post by Admin on Aug 1, 2020 22:18:09 GMT
Hi...YES it will be compulsory to have these hatches in the forefpeak that can secure well. It does NOT have to be water tight hatches....the reason is that you need to have as many heavy items secured under all bunks so that if you are upside down...your centre of gravity is high and this helps you roll back over...of course you can tie your heavy things down but we cannot control that and maybe you will have other loose things so the easiest way is to make the bunk lids compulsory and you know you have an easy place to keep heavy things low...you can easily have sails and lighter things on top, as the spaces are small, but you need somewhere for all heavy things, including all your water containers etc .. I will NOT take my double bed mattress sailing unless I intend to sleep there or have kids onboard etc...it is NOT kingsize ...The top bunk board is not needed for the structure integrity but it does help and as I say...after the Crash box it is only a little locker but a good space and remember if your doing the MGR you MUST expend the Crash box back to frame E....Thnx. If I was entering the MGR I would probably screw a simple Bulkhead to Frame E and fill forward of that with cut sheets of foam, and for rounding Cape of Good hope down south, at Mauritius, empty and fill both my cockpit lockers with foam sheets, then tape them up and at the end remove it all Just in a risk minimisation program.... but that is just me...lol
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Post by captdan on Aug 4, 2020 2:53:31 GMT
Just putting together frame D1 at the mo, and while my lamination cures, was wondering if anyone has already looked into suitable hatches for access through this bulkhead into the forepeak area? After a bit of googling, a size 60 yacht hatch appears to be one option (I think these are the biggest non-custom hatches available that will fit), but the square shape isn't ideal (could do with being more retangular really) - for the price of a size 60 hatch i'd prefer to have something a bit better suited. Wondering if anyone is doing anything different for the watertight hatch into this area.
This is, i think, the most competitively priced, size 60 hatch in the UK -
Keen to know of any other solutions/ ideas.
Happy building! (and happy Friday!)
Hi Pete, I have framed my D1 to suit a Lewmar 60 hatch. Your Bainbridge brand seems to be the same sizing for the rough cut outs. I like the pricing on these as compared to a Lewmar though !! I would prefer a rectangular hatch in this are just to ease the strain of moving in and out but like Don mentioned, if you go to a manufacturer and ask for a custom one to be made you are into a lot of money. I think for now I will continue with the "60 hatch" unless someone else has a source for something different. Don, when I was reviewing the hatch sizes in the Lewmar catalog, I noticed that the minimum size of an escape hatch to meet ISO 9094 standards is 512 x 512 or 462 x 577. Our drawing indicates a Lewmar low profile 491 x 491 for the forward deck hatch. I can honestly say that I am not well versed in the "standards" when constructing vessels of this type. What are the thoughts surrounding this? Captdan
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Post by Admin on Aug 4, 2020 4:57:02 GMT
"Don, when I was reviewing the hatch sizes in the Lewmar catalog, I noticed that the minimum size of an escape hatch to meet ISO 9094 standards is 512 x 512 or 462 x 577. Our drawing indicates a Lewmar low profile 491 x 491 for the forward deck hatch. I can honestly say that I am not well versed in the "standards" when constructing vessels of this type. What are the thoughts surrounding this? Captdan" The reality is that a 5.8mtr yacht is not expected to have people trapped below, so most/many do not have them at all, see Class Mini 650 a simple vent hatch?...we do because it is a watertight compartment and you may need to shelter in it, or get in to bail it out or make repairs...so we set our own standard..it is one dimension must be at least 50cm and you must fit through it...so 50 x 37 is about the smallest...
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martellmarine
Junior Member
Husband & wife team building boat #71.
Posts: 61
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Post by martellmarine on Oct 30, 2020 3:55:34 GMT
Just putting together frame D1 at the mo, and while my lamination cures, was wondering if anyone has already looked into suitable hatches for access through this bulkhead into the forepeak area?
I have managed to find a supplier here in New Zealand for rectangular deck hatches with cutout sizes of 500mm x 700mm and 500mm x 850mm, both hinged on the long side. Very reasonably priced, comparable with standard hatch sizes. I am considering the 850mm hatch. Cheers
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Post by Daniel on Oct 30, 2020 17:41:36 GMT
excellent! are they custom orders, or off-the shelf?
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Post by Daniel on Nov 5, 2020 16:18:08 GMT
Just putting together frame D1 at the mo, and while my lamination cures, was wondering if anyone has already looked into suitable hatches for access through this bulkhead into the forepeak area?
I have managed to find a supplier here in New Zealand for rectangular deck hatches with cutout sizes of 500mm x 700mm and 500mm x 850mm, both hinged on the long side. Very reasonably priced, comparable with standard hatch sizes. I am considering the 850mm hatch. Cheers Might also be of interest to anyone building the observation pod looking for a side-hinged watertight hatch for the companionway. would be a lot easier for entry/exit than a 500x500.
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Post by peterbrumby on Nov 5, 2020 22:18:19 GMT
Any details we can look at?
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martellmarine
Junior Member
Husband & wife team building boat #71.
Posts: 61
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Post by martellmarine on Nov 6, 2020 4:33:08 GMT
Apologies for the delay. I was hoping to have info for CG580 builders before the weekend. I expect details, mainly pricing and contact info early next week.
Here is what I know so far.
1. They are semi custom. They are built for an existing production boat builder in small batches. That is why they do not appear in their catalogue. They are happy to sell them to 580 builders though. 2. For 580 builders they will offer the hatches at trade pricing (part of the info I am waiting for). 3. They are powder coated, not anodised. This keeps the cost down. I am assured the powder coating is top quality. Colours are silver or black. You can get them anodised but the cost goes waaaay up. 4. They open to 105 deg. 5. They have stays or tele-arms, not friction hinges. 6. They come standard with 8mm light grey Plexiglass in the lid. You can upgrade to 10mm for an additional cost. 7. They come with two handles that can be operated from both sides, and locked from the inside. You can have 2 more handles fitted for an additional cost. 8. They will ship overseas individually or multiples of up to 12.
As mentioned, they are putting something together for these rectangular hatches, price wise for 580 builders.
Additionally, they do trapezoidal shaped hatches. Similar manufacturing situation. These may be of interest for some, either on the foredeck or as a companionway hatch. Don't know anything about the pricing on these units yet.
Will update when info arrives.
Hope that helps...
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Post by peterbrumby on Nov 6, 2020 8:46:52 GMT
Lol yeh...that’s a great start. Thanks for that.
Be interesting to understand more as details come through.
Thanks for sharing!!!
Peter
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