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25-03-2010, 08:53 PM
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#41
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Registered User
Join Date: May 2009
Posts: 496
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Carbuncle of a transom extension
Quote:
Originally Posted by Jon Fuller
I think it definitely won't be too high. could go higher i'd say, but that will mean a carbuncle of a transom extension, so I guess +3" it is. Lucky you've got a shorty eh!
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Finally bit the bullet and went beyond the point of no return with the hull. The cougar now has a large hole in the back. I did not realise how well the Cougar's are built until I came to cut our the rear well. In some places it was nearly 20mm thick Kevlar and end grain balsa wood sandwich. It was bloody hard work even with an angle grinder and cutting disk.
Not quite sure what to do with the transom now, but have two ideas. One is to just extend the transom height level with the deck, simpler of the two ideas but may be a bit ugly. Second idea is to build the back end up similar to rear of Miss Geico seen in third picture. Filling in between the two rear quarters but obviously with out the rudder mount. Would be able to make the engine hatch larger and would give more space in the engine bay.
Before making a decision does anyone know why the back end of the Cougar H225 was designed as it was with the stepped transom and extended rear quarters. Was it for function, strength or aesthetics or a combination.
Has anyone got any other ideas about how to finish the rear end ?
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25-03-2010, 09:19 PM
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#42
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Registered User
Country: Guernsey
Occupation: Engineering
Boat make: None, boo!
Engines: Turbines mainly!
Cruising area: The inside of my workshop!
Join Date: Mar 2008
Posts: 2,646
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I'm incredibly envious of you! I love the look of those cougars and it look like she's gonna be a lovely boat when you're done! Lets hope she goes really well too!
I'd definately go with 'filling in' the centre with a custom panel/engine hatch, would look really good in my mind, much better than leaving the rear qaurters sticking out with a drive between. You could possibly design in a step down in the middle for a step/bathing platform of sorts?
With this approach, it gives you maximum possible room, and would allow you to extend the transom up a fair bit without any clearance issues.
I want your boat!
James
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25-03-2010, 11:00 PM
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#43
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Registered User
Join Date: May 2009
Posts: 496
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Quote:
Originally Posted by larby
I'm incredibly envious of you! I love the look of those cougars and it look like she's gonna be a lovely boat when you're done! Lets hope she goes really well too!
I'd definately go with 'filling in' the centre with a custom panel/engine hatch, would look really good in my mind, much better than leaving the rear quarters sticking out with a drive between. You could possibly design in a step down in the middle for a step/bathing platform of sorts?
With this approach, it gives you maximum possible room, and would allow you to extend the transom up a fair bit without any clearance issues.
I want your boat!
James
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Hi James and thank you for your reply and vote of confidence. I think you are right about the second option. Could even make it with a flat back similar to Miss Geico and have a narrow detachable bathing platform in stainless and mahogany planks.
Spent two hours yesterday cutting the well out and 3 hours today trimming the hole and grinding the transom parallel, inched all over must have taken hours to grind the bottom of your Revenger.
I think your boat is going to look stunning too, I was just looking back to the beginning of your build thread and although slightly more classic the Revenger has great lines and proportion, I think it will be a great boat too. Will look forward to seeing it in the water.
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25-03-2010, 11:45 PM
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#44
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Registered User
Country: Guernsey
Occupation: Engineering
Boat make: None, boo!
Engines: Turbines mainly!
Cruising area: The inside of my workshop!
Join Date: Mar 2008
Posts: 2,646
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Thanks very much! Fingers crossed it'll all be worth it!
Think it took me about 250 hours to grind the hull out, never again!
I say keep the curve at the back.
All the best,
James
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26-03-2010, 12:18 AM
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#45
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Registered User
Country: UK
Location: London
Boat name: Athito
Boat make: Sunseeker Superhawk 34
Engines: 2x300hp Yanmar 6LP
Cruising area: Solent
Join Date: Nov 2006
Location: London
Posts: 149
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Or like this?
With a single engine, obviously...
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26-03-2010, 09:37 AM
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#46
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Registered User
Country: england
Location: surrey
Occupation: home extension specialist
Interests: boats, boats and more boats
Boat name: The Edge
Boat make: p21
Engines: 2.5 260
Cruising area: hayling island/littlehampton
Join Date: Jan 2010
Location: surrey
Posts: 888
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Quote:
Originally Posted by Athito
Or like this?
With a single engine, obviously...
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put the honda back on
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26-03-2010, 09:37 AM
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#47
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BananaShark Member
Country: UK
Location: Salcombe South Devon
Occupation: Racer and builder
Interests: Winning races
Boat name: BananaShark
Boat make: BananaShark 34' Race
Engines: Twin Yanmar BY 260's
Join Date: Mar 2004
Location: Salcombe South Devon
Posts: 4,638
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Fill in the gap!
__________________
Cookee
British Champions! RIB Formula 1 2005
National Speed Record Holder at 90.15 (still)
www.bananasharkracing.com
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27-03-2010, 07:42 PM
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#48
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Registered User
Join Date: May 2009
Posts: 496
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Quote:
Originally Posted by boatnut
put the honda back on
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Na, past the point of no return now. Hoping the much lower C of G will stop its tendency to roll over and transform the boat. More power and much more economy especial when cruising.
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27-03-2010, 07:43 PM
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#49
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Registered User
Join Date: May 2009
Posts: 496
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Quote:
Originally Posted by Athito
Or like this?
With a single engine, obviously...
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That's a stunning looking boat what is it ?
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27-03-2010, 07:47 PM
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#50
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Registered User
Country: UK
Location: London
Boat name: Athito
Boat make: Sunseeker Superhawk 34
Engines: 2x300hp Yanmar 6LP
Cruising area: Solent
Join Date: Nov 2006
Location: London
Posts: 149
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US company called "Statement Marine". Their website isn't great for pics and stuff...but there are some pics floating around out there.
Interesting feature of their boats: the cockpit is suspended on shock absorbers to deaden the shock of heavy weather running.
Don't know if it really works...but an interesting idea!
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29-03-2010, 09:35 AM
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#51
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Registered User
Country: Germany
Join Date: Feb 2007
Posts: 320
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Quote:
Originally Posted by freddy21
...Has anyone got any other ideas about how to finish the rear end ?
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29-03-2010, 06:19 PM
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#52
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Registered User
Join Date: May 2009
Posts: 496
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Thanks Olli
Quote:
Originally Posted by olli
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Thanks Olli, that looks really smart getting some great idea's, what boat is it.
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29-03-2010, 07:27 PM
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#53
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BananaShark Member
Country: UK
Location: Salcombe South Devon
Occupation: Racer and builder
Interests: Winning races
Boat name: BananaShark
Boat make: BananaShark 34' Race
Engines: Twin Yanmar BY 260's
Join Date: Mar 2004
Location: Salcombe South Devon
Posts: 4,638
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That is a nice rear end, but very expensive for what looks like a relatively small boat? Single drive and not very wide judging by the size of the drive?
__________________
Cookee
British Champions! RIB Formula 1 2005
National Speed Record Holder at 90.15 (still)
www.bananasharkracing.com
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29-03-2010, 09:30 PM
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#54
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Registered User
Join Date: May 2009
Posts: 496
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Quote:
Originally Posted by Cookee
That is a nice rear end, but very expensive for what looks like a relatively small boat? Single drive and not very wide judging by the size of the drive?
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Was just curious to see the rest of the boat, far to complicated for me attempt a back like that. At the moment I am sill not decided I might lust keep it simple and go for the Geico flat back with some sort removable S/S bathing platform on spigots. That way if I want to basic race or play in the rough I can remove it and on a sunny chill out day will put it on and go for a swim. Or I may just go for the Statement style Moulded step. I am going to drop the engine in next few days just to see how it sits and get an idea of where heat exchangers etc will sit.
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30-03-2010, 07:05 AM
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#55
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Registered User
Country: Germany
Join Date: Feb 2007
Posts: 320
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Quote:
Originally Posted by freddy21
...what boat is it.
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MAS 28 Tender:
http://www.mas-yacht.net/
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21-04-2010, 05:18 AM
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#56
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living the dream
Country: Fl. USA
Location: Where the sun never dies
Occupation: Life Artist
Interests: BOAT RACING
Boat name: i call her baby
Boat make: Aero-tek
Engines: a lot of horses
Cruising area: WW
Join Date: Apr 2010
Location: Where the sun never dies
Posts: 453
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Quote:
Originally Posted by Athito
US company called "Statement Marine". Their website isn't great for pics and stuff...but there are some pics floating around out there.
Interesting feature of their boats: the cockpit is suspended on shock absorbers to deaden the shock of heavy weather running.
Don't know if it really works...but an interesting idea!
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Yes it does, @ 125 MPH in 3-4 foot seas...like a cadilac on the highway (mercedes on the autobahn ) !!!!!
__________________
Not as bad as you think i am, just different !
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21-04-2010, 05:23 AM
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#57
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living the dream
Country: Fl. USA
Location: Where the sun never dies
Occupation: Life Artist
Interests: BOAT RACING
Boat name: i call her baby
Boat make: Aero-tek
Engines: a lot of horses
Cruising area: WW
Join Date: Apr 2010
Location: Where the sun never dies
Posts: 453
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I would say , first figure out where your drive is going to be ,,,before u make plans for the stern of your boat !!!!!!!!
I would say with the I/O.....u 100% don't wnat to be to high, i would go ahead and mock up the engine as deep as i could in the bilge, then mark the spot where the centerline is and check the X-dimension on the transom....quessing u want to be about 2-2.5 inches below the V with the propshaft, it may not work becasue it will end up being TOP heavy...CG and so on is very importent in a narrow V bottom or it will be out of control and fun factor will be ZERO !!!!!
Cant tell realy by looking at the pictures u got posted,, some messurements on them would be helpfull.
__________________
Not as bad as you think i am, just different !
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13-09-2010, 12:10 PM
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#58
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Registered User
Join Date: May 2009
Posts: 496
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Cougar inboard update
Just a few update photo's of the Mercedes V6 Diesel engine mounted in the boat
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13-09-2010, 12:16 PM
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#59
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Registered User
Join Date: May 2009
Posts: 496
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Cougar inboard update
Latest photo's of rear of hull joined and filled in and new engine cover
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13-09-2010, 01:10 PM
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#60
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Registered User
Country: Netherlands
Location: Harderwijk
Occupation: See my website ;)
Interests: duh ......
Boat make: Seaquel 600XS & Seaquel 700XS
Engines: Merc 300XS
Cruising area: Veluwemeer/Ijsselmeer
Join Date: Dec 2006
Location: Harderwijk
Posts: 421
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Looks great and the engine fits perfectly as far as i can see
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