Progress Update ~ January 2005

 

Current position of build 4th January 2005, just 11 weeks left to preferred launch date.

Hull skin completed, outside epoxied and undercoated by 17th October 2004. Man hours to this point - 370hrs.

Progress and issues so far :

Timber list contained incorrect length for 22mm sq so used excess 32 by 32 cut and planed down for chine stringers.

Managed to miss draw Bulkhead G using the ghost chine dimensions from bulkhead H and didn't notice this until after set up where angle of the bottom looked strange. Corrected by adding on extra ply to form the correct shape, however, this was mainly an annoyance and extra time. Stringers and doublers all went on OK along with outside ply. Scarfing fine using power planer with ply lines giving excellent guide to what you are doing. Should have been more careful with shaping sheer clamp as errors here have given a wavy edge to topsides!

Planking of radius chine did not all go well. Started with the minimum suggested strip width of 300mm but later changed to 200 or even 150mm as chines were getting distorted. Next time will go with 150mm width almost everywhere, this greatly reduces the subsequent filling and fairing.

Turning the hull was done on 17th October, a very interesting exercise accomplished with two people, one stool, two small tripods, two old mainsheet tackles and a Landrover. After removing the building frame, with the hull on the tripods and stool, lowered one edge to the floor and attempted to turn over. Could only lift to about 45%. Thatís when the Landrover came into play as an anchor for attaching a multi-purchase to pull the hull into the upright position. Easy with a 4:1 mainsheet. To lower from upright and to fix the bottom edge an aluminium pole was wedged across the house back door with the lowering multi-purchase attached and the steady strap.  Lowering went fine until I walked to the stern of the boat to adjust alignment whereupon having not noticed that there was no knot in the end of the line I just kept on releasing more line until there was no more line in my hand. The hull went into free fall (free roll really) and rolled down onto its bottom, couldnít find any damage and none has become evident since! Then lifted the hull up to get the cradle underneath (minus wheels), another exercise utilising the Landrover, this time as a gantry at stern, along with the mast A frame from the old boat and a ladder. 

By 17th October had fabricated the rudder and the keel. The keel is reinforced with a 5mm stainless wire down between two sections, across the bottom and back up to the top. This creates a U shaped s/s wire outside of the bulb bolts, main reason is the ensure that should anything nasty happen to the wooden keel, i.e. snap, the bulb still remains attached to the hull and continues to provide stability even if only through a free swinging bulb, which should keep the boat upright with sails down.

Since turning the hull over much time has been spent filleting and epoxying the inside. All has gone well with internals, most construction now done. Side decks are on as far back as the afterdeck. Coach roof skin has been done and taped on the outside, inside in progress. Cool box construction, sink, bunk fronts, forestay attachment all completed. Next jobs before starting on the aft decking are to add and shape sheer capping, fit forward hatch, build mast support, keel box stiffening to under deck, cut outs for windows, make up internal strengthening for shroud attachments and clean up and paint inside before adding wiring and fittings. Still lots to do but intention is to complete in time for first race of season, the Junior Offshore Group Nab Tower race on April 9th 2005 (it would be nice to have a trial sail first though!).

Sail wardrobe augmented with two new asymmetric spinnakers to go with existing Kevlar main and D4 #3 from old quarter tonner. May need to purchase bigger headsail although Code A  asymmetric should get pretty close winded.

 Total time spent to 4th Jan 2005 - 554hrs.

Next development will be the IRC rating.  It will be interesting to compare to the J80 which appears to have a similar hull shape but more sail area and ballast / overall weight.

     
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