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SEZED

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About SEZED

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    Canberra

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  1. SEZED

    DC Designs

    Hi All, looking for some advice on booms. We have a few new builds happening and most things are sorted, booms are not yet. Most booms I’ve come across seem to be something that was laying around or from another class that works well. Eg, my nethercott boom is a standard alloy tube (1.9kg fitted out x 1.9m long) my older new rules has a home built folded square section carbon boom (1.5kg x 1.9m long). so the advice I am after - for the new booms, if you had the option of getting whatever you want, what sort of profile and weight would you go for. I am thinking round section ID70mm
  2. SEZED

    DC Designs

    Thanks Chris and Steve, I will build that sort of recess into the next carriage, and in the meantime I’ll sort something with Dyneema, and maybe a recessing tool I suppose it goes to the centre of the seat, an eyelet or something, the seat currently doesn’t have a hole or anything, I didn’t build it.
  3. SEZED

    DC Designs

    I’ve been having problems with the seat retaining system, can someone help? current problem is on a new rules boat with a Steve Clark (US) seat. How to I retain the seat without the line jamming and where does the line go? On my other new rules the line attaches above the seat to a bridele and connects to the seat to a saddle on the flat back side of the wedge shape. In this configuration it ALWAYS jams on the carriage or gets caught unless you are very careful when tacking and throwing the seat across. On my Nethercott, the seat retainer connects through an eyelet on the unders
  4. SEZED

    DC Designs

    Not the fastest.... but fast enough to win everything and more easily handled in the heavy stuff. I want to know more about the "Gentleman's IC" from Centre Island.... I could be a gentleman one day, if I tried hard perhaps....
  5. SEZED

    DC Designs

    Please correct me if I am wrong Dave, but... The machete hull form is specifically designed for a ply+frame construction to be built easily and to a budget and yet to still be fast. If you want to build a composite hull then there are other hull forms that would be better... such as the dance commander / Maas / Morrison etc etc. Less chines and more curves means better suited to composite construction. Stressed ply uses the inherent strength of the curve + the ply + the reinforcement lining the curved hull, minimal curves. Machete uses the strength of what are essentially
  6. SEZED

    DC Designs

    For details - check out the Machete thread: Plenty of details on that thread about the how and why for a Machete boat - as in a ply with frames boat as opposed to Phil's Stressed Ply style boats
  7. SEZED

    DC Designs

    A-Class, It seems there are a few of us thinking about a new IC build in preparation for the 2020 worlds in AUS. The key ones are contactable via the stalkbook AUS IC page. Perhaps it may be a good idea for some of us to unite with a build effort. Of course that would require us to agree on what hull to go with... we all seem to want something different. I would strongly recommend picking up one of the cheap Nethercotts that are around and giving that a try for a while before commencing a build. Just to see if it's what you want to do, the Nethercott is more stable to transitio
  8. SEZED

    DC Designs

    Great write Up Willy, Can't wait to see what you are capable of in 2020 once the new boat blues are squared away. Don't forget to bring your brother! Now to get some builds happening in AUS. Because I don't think I capsized enough at Pwllheli, I'm thinking something really unstable to help me capsize more... Or I could take the sensible option and go for a SST build, and then learn how to keep it upright.
  9. SEZED

    DC Designs

    Design Tweaked.... I'm expecting lots of build techniques tips at Pwllheli! you know - little things like what weight reinforcing to use etc etc... And I'll be taking pictures of all your deck layouts etc for stealing your ideas
  10. SEZED

    DC Designs

    tweaked... I-Beam structure in the guts for strength and hopefully this one would have enough of an edge that won't suck down if it hits the water
  11. SEZED

    DC Designs

    The concave top was the key element of the design I was after.... I will definitely keep this aspect. In my quest for circular - or rather spherical symmetry - I didn't even think of that - the getting sucked down bit - just like an upside-down aeroplane wing I suppose... Back to the drawing board :-) I was kind of inspired by a study of the Sydney Opera House that described the inherent strength of spherical arcs, as you can see in the linked video, from about 16:37. I'm not an engineer, but it seemed like a good idea. Of course,I didn't consider hydrodynamics.
  12. SEZED

    DC Designs

    Anyone ever used a seat profile like the orange one in this image? possible pros/cons? carbon/foam construction
  13. SEZED

    DC Designs

    Are the upward forces on the jib boom that significant?
  14. SEZED

    DC Designs

    I've recently got Aus 32 back on the water and I'm looking to get a new set of sails. (Need to train for the worlds you see...) Before I do - I want a Jib boom, and may need to make sure the Jib design factors this in. I've been thinking about Black Betty's Jib boom and although I like it, I think you need to be better than me at boat building to integrate it into the hull. I am thinking of something that can be retrofitted to any hull - so I can use something similar on my Nethercott as well, with no hull modification. I don't like the droopy one and the UK style seems to need more th
  15. SEZED

    DC Designs

    Made a model, it's very pointy. I like it A bit rough, not finished, but you can see the effect I'm after
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