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Old 17 March 2011, 14:33   #1
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Trailer build for Gwenn Ha Gwer Part deux

Some final pics, here you lot should be able to spot the mistake.....only realy visible in one of the pictures.

Simon
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Old 17 March 2011, 14:38   #2
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Axles too far to the rear, trailer nose weight excessive.
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Old 17 March 2011, 14:44   #3
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Back crossmember is straight - should be Veed
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Old 17 March 2011, 14:47   #4
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Back crossmember is straight - should be Veed
What is 'heavy' making at the moment?
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Old 17 March 2011, 14:51   #5
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What is 'heavy' making at the moment?
Assuming you are not referring to 80' - so Enlighten us!
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Old 17 March 2011, 14:54   #6
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Come on guys, you can do better than that......

I have not finished the roller bunks yet so am unable to try the boat for correct weight distribustion......sorry Mollers...

Willk...your close (in that your looking at the construction of the trailer) although the back crossmenber was deliberate since there are 10 keel rollers soon to be fitted to the centre beam.

Look towards the other end!

Simon
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Old 17 March 2011, 14:55   #7
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Assuming you are not referring to 80' - so Enlighten us!
Ferrous.
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Old 17 March 2011, 14:58   #8
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Mmm how you going to clamp up your Jockey wheel ??
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Old 17 March 2011, 15:02   #9
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Yes, 'dix points' to Ashbypower.....

Yep, cant believe i overlooked it but clamping up the J/Wheel is gonna be a bit of a bugger!...gonna have to fabricate a custom brace instead of the standard Knott brace.......Doh

Simon
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Old 17 March 2011, 15:03   #10
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I wondered why the aft crossmember is forward of the ends of the side rails?
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Old 17 March 2011, 15:04   #11
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How's about and extended one, with a hole through the side of the "A" frame?
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Old 17 March 2011, 15:10   #12
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How's about and extended one, with a hole through the side of the "A" frame?
I did think about doing that but was worried about weakening the drawbar...that said, its pretty well over-engineered as it is so would probably be ok....just got to wait for the 'honeymoon' period to wear off before i can bring myself to drilling big holes in the fresh galvanizing!

Simon
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Old 17 March 2011, 15:12   #13
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Ferrous.
Hmm, ferrous - hard work, my last sale was armoured copper cable. I was pleasantly surprised where it had got to...
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Old 17 March 2011, 15:14   #14
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I wondered why the aft crossmember is forward of the ends of the side rails?

Downhildai, do you see that being a problem?

The boat is going to sit on a combination of keel rollers and (what i would call) roller bunks, bunks but with rollers protruding upwards and running the full length of the bunk.

Simon
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Old 17 March 2011, 15:31   #15
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How's about and extended one, with a hole through the side of the "A" frame?
Yep, that's not a uncommon set-up. Needs to be well greased otherwise, it'll twist off like a carrott.
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Old 17 March 2011, 15:34   #16
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Downhildai, do you see that being a problem?
It may well be a problem if you bash the hull against the side rails when you try getting the boat onto the trailer. If you're on a cross tide, the boat can slew sideways off the back roller and it could come into contact with the side rails.

I'd prefer to have the aft roller at the rearmost part of the trailer.
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Old 17 March 2011, 15:35   #17
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I did think about doing that but was worried about weakening the drawbar...
Simon
You could double-up by welding a plate over the whole and drilling through both. A bit 'overkill' perhaps and it would make a mess of the galvi.
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Old 17 March 2011, 15:58   #18
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You could double-up by welding a plate over the whole and drilling through both. A bit 'overkill' perhaps and it would make a mess of the galvi.

Hmmm, i've just measured the gap between the j/wheel clamp boss and the side rail and i have just shy of 3 inches....i should be able to fabricate a hand wheel type brace to fit into the gap......failing that i have enough room just aft of the boss to add a secondary clamp which could be bracketed to the side rails using u bolts. Will try everything before i go near the galvi with my mig....

Dowhilldai...point taken, will install the bunks as far aft as possible to avoid any contact..

Thanks for all the constructive comments though, much appreciated.....although i should probably ave posted pics BEFORE going to the galvanizers!


Simon
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Old 17 March 2011, 17:02   #19
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I can let you know where the axle should be relative to the transom based on mine, if it'll help provisional set-up.
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Old 17 March 2011, 17:52   #20
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...welding... would make a mess of the galvi.
Eutectic have just brought out an MMA welding rod for galvanised steel, penetrates through the zinc without burning too much of it off and reducing spatter. So they say. Got a couple at work but I haven't tried them yet.
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