Rob,
I *really* like the lines. Very elegant. I am going to look again at
mine and see if I can emulate what you have there. Can you give me
some more info on the ww hull, like the length, the distance between
the beams and the waterline beam?
Thanks,
- Gardner
On Fri, May 22, 2009 at 9:17 AM, Rob Denney <harryproa@gmail.
>
>
> G'day,
>
> I have just loaded a picture of the new Solitarry to the Photos
> section. Actually, it is more of a harry with a 15m lee hull. Build
> is set to start in July, with one, maybe 2 full time helpers. Launch
> in October, maybe. The rendering is not totally accurate as it is
> mostly for sponsor gathering.
>
> Anticipated weights (from a discussion at crew.org.nz)
>
> Following are some numbers from the weight spreadsheet for my boat.
> Apart from the windward hull, it has all been engineered so I am
> confident the component weights are correct. Dave/Squid (potential
> short handed sailor..ed) would only need half as much windward hull,
> and there is 20-30 kgs to be saved from having a tube mast instead of
> the telescoping wing mast rig. A canted tube mast would make the boat
> self righting.
>
> Dave may also want to build the hulls from carbon as the small amounts
> required are not that big a cost. I have used glass as the Classe 50
> (French 15m multihull organisation, Crepes Wahou and co) requires it
> and they asked me to enter a harry in next years Route de Rhum (solo
> France to Guadeloupe) as they want to maximise their publicity. Bit
> full on for me, so I have got an ex mini 650 sailor to charter the
> boat, with a smaller windward hull.
>
> Lee hull:
> Surface area hull, deck and bulkheads, overlaps and tabbing 40 sq m
> Base laminate weight, 3.5 kgs/sq m
> Additional stiffening and local beefing up for mast bearings 30 kgs
> Paint and bog 10
>
> Lee hull weight: 180 kgs
>
> Windward hull:
> Surface area incl deck, bulkheads, overlaps and tabbing 54 sq m
> (Dave's is 25 sq m)
> Laminate weight 3.5 kgs/sqm
> Paint and bog 11
>
> ww hull weight: 200 kgs
>
> Beams 7.5m x 200mm dia tubes, including reinforcing at the hulls 18
> kgs each = 36 kgs
>
> Rudders, rudder mounts, tillers and extensions: 20 kgs each = 40 kgs
>
> Mast and boom: ~80 kgs (non telescoping one will be 20-30 less)
>
> Sail, tramp, rigging, cleats and blocks: ~45 kgs
>
> Ready to sail: 581 kgs
>
> Safety gear for solo Transpac which I would like to do next year: 180
> kgs Includes spares and nav equipment, not sure how it relates to the
> requirements for Cat 1 or Cat 3 in NZ, but seems close to what Mr Wolf
> has on his boat, so probably close
>
> Ready to race, ex crew, food and water: 761 kgs
>
> The list does not include:
> Daggerboards, cases and the hull strengthening these require.
> Harryproas have oversize, liftable rudders, mounted on the beams. They
> kick up without damage in a grounding or collision, are much easier to
> clean plastic bags and weed off and can be partially or fully lifted
> to balance the helm or reduce wetted surface.
>
> Shrouds, stays, forebeams, chainplates, rigging screws, traveller,
> winches, jammers, spreaders, dolphin or seagull strikers, jib tracks,
> turning blocks, and all the reinforcing and fasteners these items
> require.
>
> Jibs, screechers, spinnakers and their sheets and halyards. The rig is
> a single 50 sqm mainsail on an 18m tall x 600 chord unstayed wing mast
> which telescopes down to 10m. The boom is self vanging and the
> controls (halyards, sheet and downhauls) are 3 or 4:1 blocks and
> tackles.
>
> Much bog: The boat is built almost entirely from full length fully or
> partially glassed flat panels. These are bagged on a table and bent to
> shape in simple moulds so the surface is fair and ready for paint. All
> joins have radiuses and/or rebates for the joining glass. Little or no
> bog and fairing is required. This is a simplification of Derek
> Kelsall's KSS technique, made possible because there is no rocker in
> the hulls. We built a 15m hull and decks using KSS last year. Bit of a
> cock up with the bending and extra glassing so it weighs 200 kgs.
> Based on the time this hull took and the refinements to the build
> system, I am pretty confident my boat will be built in about 500
> hours.
>
> Pulpit (there is no need to go outside the beams), bunk boards and
> floors (integral with the structure) and wind instruments (with one
> sail you are either overpowered or not).
>
> regards,
>
> Rob
>
>
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