Reply
 
Thread Tools Search this Thread
 
Old 09 December 2014, 22:33   #1
Member
 
Country: UK - Scotland
Boat name: Neptune
Make: Concorde
Length: 6m +
Engine: Mercury 150 V6
MMSI: 235103209
Join Date: Jan 2014
Posts: 36
Rebuild Advice Please

Hello,

I'm rebuilding the 6m Concorde RIB below. The transom and stringers have already gone, and the deck is going to be replaced too (its completely untreated on the underside).

Questions:

Best way to fit a new deck? enclose the ply in glass externally and then glass it onto the hull? is it reasonable to use polyester resin for this to keep the cost down

for transom replacement most guides seem to suggest adhering the bare core with epoxy filler, then coating with matting. Why not coat the core in epoxy/fabric first and then attach to the hull, with further layers on top?

thanks,

Mike

Click image for larger version

Name:	IMG_1918.jpg
Views:	314
Size:	177.3 KB
ID:	101498
Click image for larger version

Name:	IMG_1919.jpg
Views:	262
Size:	169.2 KB
ID:	101499
__________________
mdearman is offline   Reply With Quote
Old 14 December 2014, 22:45   #2
Member
 
Country: UK - Scotland
Boat name: Neptune
Make: Concorde
Length: 6m +
Engine: Mercury 150 V6
MMSI: 235103209
Join Date: Jan 2014
Posts: 36
Nobody? Really? I didn't think opinions were in short supply in this forum....
__________________
mdearman is offline   Reply With Quote
Old 15 December 2014, 09:25   #3
Member
 
Country: Australia
Town: Adelaide
Boat name: No Name
Make: Revenger
Length: 7m +
Engine: 2 x Mercury 90
Join Date: Dec 2014
Posts: 99
I have no opinion having never undertaken such a job. But I am very interested to see how it works out for you in case I have to do the same. I am sure someone will be along soon.
__________________
gareth9702 is offline   Reply With Quote
Old 15 December 2014, 09:38   #4
Member
 
Country: Finland
Town: Helsinki
Boat name: SR 5.4
Make: Avon
Length: 4m +
Engine: Toh1 3,5 Yam 90/2S
Join Date: Oct 2009
Posts: 919
Looks like a major project. One thing that strikes me on the cut down transom, what is the plan to get the matting from the outer side of the hull(bottom) round the "corner" to the outer side of the transom? More experienced builders here than me but maybe one option would be to do it from the inside against a waxed flat mold ? This only after careful preparation of course.
__________________
fun on a boat is inversely proportional to size...sort of anyway
C-NUMB is offline   Reply With Quote
Old 15 December 2014, 09:52   #5
Member
 
Country: UK - Scotland
Boat name: Neptune
Make: Concorde
Length: 6m +
Engine: Mercury 150 V6
MMSI: 235103209
Join Date: Jan 2014
Posts: 36
West Systems generally recommend a 12:1 bevel so, I was expecting to sand the hull back by 12x its thickness and build up layers of matting. could get ugly and i would have to work around the strakes.

My real worry is how to make a smooth finish on the rear of the transom.

Yes it's become a huge project, but its saving me a lot in fuel costs!
__________________
mdearman is offline   Reply With Quote
Old 15 December 2014, 19:49   #6
Member
 
Pikey Dave's Avatar
 
Country: UK - England
Town: South Yorks
Boat name: Black Pig
Make: Ribcraft
Length: 5m +
Engine: DF140a
MMSI: 235111389
Join Date: Feb 2008
Posts: 12,167
RIBase
Quote:
Originally Posted by mdearman View Post
Nobody? Really? I didn't think opinions were in short supply in this forum....

Ahh! You originally asked for advice, now you want opinions, very different beasts. I can't offer any advice as it's beyond my pay grade, but if it's an opinion you want.........,,,


.....sh1t happens.......
__________________
Rule#2: Never argue with an idiot. He'll drag you down to his level & then beat you with experience.
Rule#3: Tha' can't educate pork.
Rule#4:Don't feed the troll
Pikey Dave is offline   Reply With Quote
Old 15 December 2014, 20:22   #7
Member
 
Country: USA
Town: CA
Make: Zodiac RIB-P
Length: 7m +
Engine: Suzuki 250
Join Date: Aug 2010
Posts: 1,235
too late now but the boat building forum i frequent suggests leaving the outside transom skin in place because it is hard to recreate the outside bottom edge. Also they only use epoxy for repairs as polyester doesn't do repairs as well. Bateau2.com - Technical support for builders

Not to say you are sunk but it's outside my paygrade as well.

Jason
__________________
Bigtalljv is offline   Reply With Quote
Old 15 December 2014, 20:57   #8
Member
 
Country: UK - Scotland
Boat name: Neptune
Make: Concorde
Length: 6m +
Engine: Mercury 150 V6
MMSI: 235103209
Join Date: Jan 2014
Posts: 36
This is a repair of a bodged repair by previous owner, the inner and outer skins were irretrievable.
__________________
mdearman is offline   Reply With Quote
Old 15 December 2014, 21:52   #9
Member
 
Country: USA
Town: CA
Make: Zodiac RIB-P
Length: 7m +
Engine: Suzuki 250
Join Date: Aug 2010
Posts: 1,235
not impossible, just more work. I'd check the site I referenced. They have the experience and know how to help you put it back together.

Jason
__________________
Bigtalljv is offline   Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off




All times are GMT. The time now is 09:08.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.