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#276429 - 11/27/14 04:22 AM Re: 1182 ......'Twice Shy' [Re: Pirate]  
Joined: Apr 2013
Posts: 858
Pirate Offline
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Pirate  Offline
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Joined: Apr 2013
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Victoria Australia
I guess a bit of a quick update is in order (and seeing I have 5mins to myself)
wink

A fireball rudder gets the chop and a quick buildup with some chopped mat......
unfortunately the rudder was 20mm at the top where I cut it down to length but the section in the bottom part of the case was only 16mm.... hence the glass buildup ...

it works and will do for now... plan to make a mould and 'cast' my own blades to suit the alloy cases I made for Shy, this will give me setup for Karp aswell.

[Linked Image]

end result......

[Linked Image]

ok so its a bit of an odd pair, but under the circumstances it was a quick and easy fix...... and damn cheap too
quick/easy/cheap..... what more could you want
laugh
240/29900


Yar, & this ere post be done without a sin'le drop o' rum passin' me lips

Kingy
started with Impara Cadet #3 / Mosquito #245
& now Mosquitos #1182 & #1740

-- Have You Seen This? --
#276437 - 11/27/14 05:48 AM Re: 1182 ......'Twice Shy' [Re: Pirate]  
Joined: Apr 2013
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Pirate Offline
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Pirate  Offline
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Victoria Australia
Over the xmas break I have a plan....

modify the original rudder, specifically around the stainless part

take a mould of the rudder head from Shy and use the lower part of the blade from Karp

cast my own set of blades, this will be initially done in chopped mat for testing & seeing I've never done this sort of thing before I cant afford to waste it in carbon or Kevlar. I happen to have ~30metres of heavy gsm chopped mat on hand so its "expendable" in comparision to the cost of having to get the carbon or Kevlar cloth

stay tuned
wink


Yar, & this ere post be done without a sin'le drop o' rum passin' me lips

Kingy
started with Impara Cadet #3 / Mosquito #245
& now Mosquitos #1182 & #1740

#276902 - 01/07/15 04:15 AM Re: 1182 ......'Twice Shy' [Re: Pirate]  
Joined: Apr 2013
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Pirate Offline
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Pirate  Offline
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Victoria Australia
I've got the sail back from Goodalls that got wrecked @ the Warnambool regatta last year, and although I did sort of say I wasn't recking any more of Karps stuff on Shy, well I sorta decided I'd give it one more try
wink

But first I have to make an old mast suitable for the newer style sail...

First Up I made a flared opening for the sail to feed up through and then it was time to Tig up the old cut away sections smile

[Linked Image]

tig work done and a quick grind off and we have

[Linked Image]

244 33594


Yar, & this ere post be done without a sin'le drop o' rum passin' me lips

Kingy
started with Impara Cadet #3 / Mosquito #245
& now Mosquitos #1182 & #1740

#276903 - 01/07/15 04:17 AM Re: 1182 ......'Twice Shy' [Re: Pirate]  
Joined: Apr 2013
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Pirate Offline
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Pirate  Offline
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Joined: Apr 2013
Posts: 858
Victoria Australia
Down-haul fitted
This is borrowed from Karp's broken mast as is the mast rotator

[Linked Image]


Yar, & this ere post be done without a sin'le drop o' rum passin' me lips

Kingy
started with Impara Cadet #3 / Mosquito #245
& now Mosquitos #1182 & #1740

#276904 - 01/07/15 04:23 AM Re: 1182 ......'Twice Shy' [Re: Pirate]  
Joined: Apr 2013
Posts: 858
Pirate Offline
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Pirate  Offline
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Joined: Apr 2013
Posts: 858
Victoria Australia
And a couple of weekends ago I returned to the scene of the crime (Broken mast).....
On the beach having just finished the first race.... and yep thats 2nd place just crossing the line in the background
grin
The old girl went the fastest she's ever gone and I have proof on the time sheet.....
I've got to get a new main for Shy if I'm going to keep on racing her

[Linked Image]


this is also one of the best pics I've taken of the old girl
OMG..... THAT green STANDS OUT..... grin Karps new color is really going to have to work hard to beat that !!!


Yar, & this ere post be done without a sin'le drop o' rum passin' me lips

Kingy
started with Impara Cadet #3 / Mosquito #245
& now Mosquitos #1182 & #1740

#276905 - 01/07/15 04:36 AM Re: 1182 ......'Twice Shy' [Re: Pirate]  
Joined: Apr 2013
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Pirate  Offline
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Victoria Australia
back to the rudder moulding....

remember 1 thing please.....
I've NEVER done this sort of thing before .... so be kind blush

I used air-drying clay as the lower part of the mould and once I had the desired height set I simply applied the PVA release agent to the rudder and clay base...... and a good smear on the workbench too just incase
wink
[Linked Image]

Once I had the mould set it was time to duplicate the other side....


Released off of the table and now the fight to release the rudder from the mould begins... mad

[Linked Image]

fight over smile

[Linked Image]


Yar, & this ere post be done without a sin'le drop o' rum passin' me lips

Kingy
started with Impara Cadet #3 / Mosquito #245
& now Mosquitos #1182 & #1740

#276906 - 01/07/15 04:49 AM Re: 1182 ......'Twice Shy' [Re: Pirate]  
Joined: Apr 2013
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Pirate Offline
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Pirate  Offline
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Joined: Apr 2013
Posts: 858
Victoria Australia
After a bit of a fight I got the castings off of the rudder with zero damage to the rudder or the 2 moulds.
All up very happy with the end result at this stage, yeah there's a couple of minor holes that I've already filled and blocked back on one of the moulds and its now ready to actually lay a new fibreglass half rudder in..... one minor issue stops me dead in my tracks tho, my glass supplier omitted to put the gel-coat fixer in the package, I guess he was under the pump a tad being xmas and all.
It will be here in a few days time so I can then make my first half cast
nervous times ahead.....
I was going to do it in carbon fibre but seeing this is my first attempt at this sort of thing I'm going to the first set in ordinary chopped mat , then do some sailing with them and see how they go before commiting to a full carbon pair

[Linked Image]

The 'dark line' you can see through the mould is actually glassed in bits of rope, this has stiffened up the mould significantly to the point where its quite difficult to get any real flex in the moulds.
The heavier sections around the rudder top are glassed in 8mmX10mm cedar offcuts from the stringers when I re-decked Shy

All up happy as.... at the halfway point anyway
wink


Yar, & this ere post be done without a sin'le drop o' rum passin' me lips

Kingy
started with Impara Cadet #3 / Mosquito #245
& now Mosquitos #1182 & #1740

#277019 - 01/14/15 04:32 PM Re: 1182 ......'Twice Shy' [Re: Pirate]  
Joined: Apr 2009
Posts: 88
Matthew Dawson Offline
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Matthew Dawson  Offline
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Joined: Apr 2009
Posts: 88
The rope in the fibreglass is interesting. Why does it work any better than just adding more fibreglass? Or fibreglass 'channels'?


Cobra 570
Cobra 581
Mosquito 126
Arafura Cadet 738
#277020 - 01/14/15 05:38 PM Re: 1182 ......'Twice Shy' [Re: Pirate]  

**DONOTDELETE**
Unregistered
Scarecrow
Unregistered


Basically it is a cheap easy core for a stiffener. The idea is to make a 2D structure, more 3D thus increasing the stiffness of the moulds.

#277027 - 01/14/15 07:57 PM Re: 1182 ......'Twice Shy' [Re: Pirate]  
Joined: Apr 2009
Posts: 88
Matthew Dawson Offline
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Matthew Dawson  Offline
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Joined: Apr 2009
Posts: 88
Did you ever weigh Twice Shy Kingy? I may have missed that post ... I can't find it now.



Cobra 570
Cobra 581
Mosquito 126
Arafura Cadet 738
#277053 - 01/15/15 02:56 PM Re: 1182 ......'Twice Shy' [Re: Matthew Dawson]  
Joined: Apr 2013
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Pirate Offline
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Pirate  Offline
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Joined: Apr 2013
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Victoria Australia
Scarecrow nailed it, the rope addition in the glass stiffens the mould up considerably, sure a stick of wood most likely would be slightly better but wood doesn't bend that well around tight corners....
Its an old speedway trick we used way back when, the glass body panels often developed stress fractures from the riggors of racing, the addition of the rope near edges stiffened up the panel and stopped the vibrations from initialising the fractures.


Yes I weighed Shy, and she WAS fat eek
No I never "advertised" the weight and don't intend to even now, let just say she's closer to the weight limit than she'd ever have been but could loose a couple more kilo's safely.

The biggest and probably the most surprising weight loss was the 'rubbish' that was removed. A total of ~12 kilos of "bits" of rubbish were removed, this was mainly excess resin dribbles from repairs or original building and the massive build up of what I can only call "road grime" => years of open hatches had let in all sorts of weird stuff....
Included were:
empty beer and coke cans, several butts and dead matches, bits of paper, set of car keys, small shifter, 3 shackle keys, dead birds and a nest, and about a dozen 'matchbox' toy cars!!! ..... the major debris aside from the resin was sawdust and general dust, all up each hull gave up ~3kgs of just dust with the vacuum cleaner

When we did Scorpian the weight loss was even more dramatic than Shy's and yes its above the limit aswell, Phill was amazed at the constant amount of dust we kept sucking out, when its final weight was done he had one huge smile on his face, I still don't think he belived the loss Scorp went through until it hit the scales
The most noticeable thing..... both boats sit on the water in a totally different manor, its that big a difference visibly, they are also diferent ladies on the water too
wink

Could I get even more off ????

Oh yeah.... I have no doubt now that I could get an older heavier boat to go UNDER the weight limit, I keep looking at a certain pair of red hulls and keep thinking.... winter project
wink


Yar, & this ere post be done without a sin'le drop o' rum passin' me lips

Kingy
started with Impara Cadet #3 / Mosquito #245
& now Mosquitos #1182 & #1740

#280619 - 09/25/15 04:51 PM Re: 1182 ......'Twice Shy' [Re: Pirate]  
Joined: Apr 2009
Posts: 88
Matthew Dawson Offline
journeyman
Matthew Dawson  Offline
journeyman

Joined: Apr 2009
Posts: 88
Did you end up making the rudders? How did they turn out?


Cobra 570
Cobra 581
Mosquito 126
Arafura Cadet 738
#280636 - 09/28/15 02:48 AM Re: 1182 ......'Twice Shy' [Re: Matthew Dawson]  
Joined: Apr 2013
Posts: 858
Pirate Offline
old hand
Pirate  Offline
old hand

Joined: Apr 2013
Posts: 858
Victoria Australia
Haven't done them as yet, the moulds are ready to go and the gelcoat/cloth/resin is all sitting there.......

I just need time to actually get some work done on them, and TwiceShy, and the Impara, and JurassicKarp, and the RL, and....

its been a very busy last 6months, how dare work interfere with my hobbies
cry


Yar, & this ere post be done without a sin'le drop o' rum passin' me lips

Kingy
started with Impara Cadet #3 / Mosquito #245
& now Mosquitos #1182 & #1740

#280649 - 09/29/15 05:37 AM Re: 1182 ......'Twice Shy' [Re: Pirate]  
Joined: May 2011
Posts: 108
Beckit 1824 Offline
member
Beckit 1824  Offline
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Joined: May 2011
Posts: 108
Port Hedland
Kingy there is a guy called Tim at Rye Yacht club that recently broke a rudder blade. If you give Gordon a shout he can put you in contact with him, but I'm thinking if you make a few it might offset the cost of your own.

Luke

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