26ft trimaran QLD

[Skullduggerydave]

 

[Skullduggerydave]

Then there was always the fact that that Rudder is missing a tip off the end of it by the look of it I guess it was sacrificial ....

So I could add 200 mill to my existing Rudder with a decent shape and a 200 mil swim step to the back of the boat to fair  in all that bracket  and rubbish Both of those things would be a simple sacrificial type extension and really easy to do

 

[Skullduggerydave]

Righto some more improvements as we go haven’t been able to push the boat as yet because I  simply can’t steer it with the Rudder arrangement that was there above 10 knots Boat speed.

This set up should be heaps better can get 85 mil  in the water But will see how we go with 50 as a safety margin because there’s been some speculation as to whether the board is strong enough. Mounting hardware  and cassette  is definitely strong enough . So if I do  brake board and have to make a new one that’s fine ,,,,,, The shape looks nice Will let you know how it feels after today ,,, I have a light offshore here in Harvey bay today 

 

[Skullduggerydave]

 

[Skullduggerydave]

Sorry to rain on your parade again but if you have a multihull that does above 10 upwind and above 15 downwind that rudder will fold firstly the alloy box (unless it is stainless hard to tell) and if you beef that up the blade will fold. Gudgeons too weak also. The Blazer falls over so the blade takes a fraction of the load our boats take. A Farrier type box and blade is not too hard to build. There is a chance you could split that blade to put a big carbon stringer across the blade down the thickest part  of the foil, then wrap in a few layers of biax carbon then fair it as the shape is not too bad. Angle forward should be about 8 degrees.

PM me I might be able to find you come specs for a build.

Peter    

Thanks for advice Peter beefed up the gudgeon and mounting hardware  ,,, See how it goes sometimes you gotta work with what you got

 

[plywoodboy]

Nice welding mate,  give it a go. Would steer better with bottom tip 5 degrees forward imho.

Ian Farrier used to tell me to test all the research rudders with 60% blade down, then add a bit every time it had been thrashed at that length. 

Peter

 

[Skullduggerydave]

Nice welding mate,  give it a go. Would steer better with bottom tip 5 degrees forward imho.

Ian Farrier used to tell me to test all the research rudders with 60% blade down, then add a bit every time it had been thrashed at that length. 

Yeah thanks for the input mate sounds good I do have quite a bit of forward rake on it to try to balance it as such I think that’s the word I’m looking for

 

[peterbike]

Very sexy.  100% better than the old !

Angle adjustment would be easy if needed - some packers/shims top or bottom, retighten bolts & go.

 

[Skullduggerydave]

Finally had some wind today to test the Rudder properly .... did tin can to Hervey Bay in 10 to 15 with 20 max in the gusts  from behind....square  kite run to start doing 10 in 10 knots then dropped the kite to finish the day with power reaching doing 15 + in 15  .....rudder  works great a bit heavy  but I like that  ... 100 % best improvement so far .... max boat speed  today just under 20 knots !!! 

 

[Skullduggerydave]

 

[plywoodboy]

Awesome ! Maybe join in with the Hervey Bay fleet for a race when things ease.

 

[Skullduggerydave]

Awesome ! Maybe join in with the Hervey Bay fleet for a race when things ease.

Sounds good ... I will be a bit out classed but have a go 

 

[Skullduggerydave]

 

[Skullduggerydave]

I have found the cockpit a bit restricted and awkward so it’s time for a car park refit !!!! 

 

[guerdon]

CPR, the low cost haul out in the yard we all can afford.

 

[Skullduggerydave]

Day 2,,,, looking good !!!! 

Glassed in !!!! 

bigger main sheet traveller track going full with at front of cockpit  tying  everything together 

 

[Skullduggerydave]

Sooo much better now 

 

[plywoodboy]

Much nicer! Similar to the trailer tri guys who afford winged aft sections to the tt720, creates a much nicer looking boat.

Never seen that cat park look so quiet,  we are usually there trying not to drop the mast on bogan fisho's after the bay to bay. 

 

[[email protected]]

Sooo much better now 

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Nice longboard on the foredeck!

 

[mundt]

Very good looking boat.  While you're at it you might really learn to appreciate some kind of backrest for your new seats.  Being able to lean back is great and they'll keep you dryer and safer too.