Inner-forestay support

This pertains to the pole-lift/inner staysail idea I've had for a while.  The blog post is here: http://dianaofburlington.blogspot.com/2012/08/internal-pole-lift.html

In fitting an inner forestay, even if it's a detachable one, the foredeck needs to be reinforced.  Though I've filled all the rotten core adequately, the deck alone won't support something that amounts to a chainplate and may be called upon, in a catastrophe, to support the rig as the only surviving headstay.  So I decided upon a "horse", a structure going athwartships at this point.  Here is my original drawing (on the piece of plywood I would use for the crossmember/deck beam).

Below is shown the initial structure, two short little bulkheads in the forepeak, aligned with a couple of sticks.  The stick under the starboard-side shelf is propping up the shelf from its as-built position, as it was both angled downwards inboard and also too low.  The cleat on the forward bulkhead (what used to be the rode locker)  is aligning the two shelves more or less evenly; though the starboard-side one, once leveled, is too high by 1/4".  Such is the nature of budget-minded mass-produced yachts of the 1970s.

Of course these pieces narrowed the space considerably.  I had trouble wedging my out-of-shape self forward of this to disconnect the running-light wiring (along the port side) which kept getting in the way; so I decided to cut out the bulkheads a little.

I am always wary of amorphous shapes like this (such as on the back of the Hyundai Sante Fe SUV, which is downright hideous) so I just used a 4" sanding block to scribe a line parallel to the hull and deck all round.  This picture shows the cutout with the crossmember in place.  The bulkheads are 3/8" and the crossmember is 1/2".  I use mainly good-quality cabinet-grade plywood, well-saturated in epoxy and sealed in epoxy paint (these will be done in Easypoxy).  The void to port is for the wiring, which here I have tucked back out of the way.

 

Pretty cool how the bow-locker door hinges open and fits into the curve of this new bulkhead; huh?  (Should I say I planned it this way?)

(And, yes; this is where the microwave goes.  I've written on this before.)

On most budget-minded production boats, the V-berth shelf is meant mainly to stiffen the hull above the bunktop, as this tends to be the longest and highest section of otherwise-unsupported fiberglass hull on most boats.  It's not there to be useful; and most of the time the fiddles on the shelf are so miniscule as to be only for show.  Determined to have a proper forepeak, I made these high enough (6" inside) to contain plenty of gnarly gear that will accummulate here, like fenders, mooring lines, a mooring pennant, spare tackle, and probably even a couple of sailbags (Diana's main and jib already share a bag that would fit in here as it is).  The fiddles are made of 1/4" plywood, just decent cabinet-grade lauan that I had got to finish some Barbie dollhouses for my kids.  I cut them down forward of the new bulkheads to allow the little door (the only cabinet door with hinges in the whole boat) to open fully.

 

Above is to go a mahogany plank, about 4" wide and 1/2" thick, to serve as a backing plate for the deck winch (which serves the anchor rode), the mooring cleat, and the inner-forestay attachment fitting, as well as the aesthetic purpose of representing the centerline.  Originally I made this for the full length of the space; but I will cut it and fit two pieces to the fore and aft of this crossmember.  It occurs to me to have some really nice bright white LED floodlights under the deck, forward of this, to illumine the whole compartment.

Along the deck, against the hull, kind of like a facia meant to hide the toerail bolts, I will fit a wooden cleat between the new bulkheads and the (new) chain-locker bulkheads, on which can be mounted hooks and straps on which to hang line and sailbags and other stuff.

These pics were taken a few days ago.  As of today (Saturday, 24 May) I have applied a fillet of 5200 along the hull and, using WEST epoxy, 'glassed the bulkheads and crossmember into place.  When this is kicked-off I'll be painting this with semi-gloss Easypoxy.The original faux-teak forward bulkhead will be left as original; though when I replace the door I'll be replacing the tired old brass-plated-steel offset hinges with some in SS or chrome.  My daughter Rachel hand-painted ship's wheels and anchors onto some wooden knobs for my mother's kitchen cabinets recently; there is one left over and I may use it on this door.

Stay tuned for the pics of after I install the rode-locker bulkheads and trim up here.  I've mocked it up a few times and it's going to look really cool.

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What it's supposed to look like....

These illustrations are from an early brochure done by Hunter marketing based on my dad's 1972 drawings of the Mk-1 Hunter 25.

My dad's idea was to have windows like an airplane, aluminum frames having the right shape and then just installed in the cabinsides. John Luhrs later thought it was best to use the same commercially-available portlights all other boatbuilders used; and the design went downhill from there.

It was my idea to extend the settee berths under the bulkhead-- I had seen it on some more-obscure boat before. By doing this we got a 5-berth 25-footer that still has a decent cockpit.

The wrap-around coaming was my dad's idea but we all (Bob Seidelmann, my brother, Warren Luhrs, my dad and I) contributed to it. It is good-looking, if awkward functionally, except for at the back where it finishes off the cockpit very well.

The semi-flush deck (cabinsides tapering into nothing ahead of the mast) made my dad call this initial edition the 'blister-canopy' (as with the Supermarine Spitfire) or the 'bubble-top' (what they called the North American P-51C with Malcolm hood). Once a fighter pilot, always a fighter pilot....

The rig is tall and the boom short, typical for an IOR-influenced boat of this period-- it's technically high-aspect. The narrow stern is an IOR feature as well, meant to get the smallest-possible girth measurements to 'defeat' the rule. Still the boat rates 19.4, not 18.0; and so it is not a quarter-tonner.

The narrow stern actually makes the boat appear and behave very much like a double-ender, being responsible for the boat taking a following sea rather well and leaving the water close to the way it found it (if the outboard is not too heavy or kept down).

Notice that the mainsheet in this drawing goes straight down to where Diana's bridgedeck-mounted traveler goes. ;) Also the plan drawing appears to indicate a bridge deck, which was not as-built.

I just noticed that this drawing shows the deck having scalloped handrails, not those little teak sticks that went on production boats. They also appear to extend a little too far forward. By some bizarre coincidence (for I did not examine this before I made them!) the handrails for Diana look exactly like the ones in this drawing.

The parallelogram keel is a sign of the times (1972). In 1974 it would have had a vertical trailing edge. The semi-skeg in front of the rudder is as well; in 1976 my dad would eliminate all but a minor dimple there on the Raider and by 1978 he had said he should have done without it entirely.

Other than this, the Raider 33 looks like a direct descendant of the Hunter 25. Both boats are noted for early heeling, stability once heeled, good pointing ability and the tendency to be driven hard by the jib (throttle) and steadied by the main (shock absorber). I call this a 'hellandback' boat, because that's where it'll take you.

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Internal pole lift

Since this boat is so small, it's unlikely I'll ever have a proper whole-cockpit awning without setting it over the mainsail cover.  So when in the ICW or anywhere that calls for more powering than sailing, I won't have the opportunity to set any sail to assist the motor other than the jib itself, which is too far forward to allow the boat to balance under the one sail alone.  What's needed is a smaller sail more centrally set, fore-and-aft, that can pull reasonably well on most points of sail in light air... like an inner forestaysail.  And, more importantly, it will also serve to take over when/if the motor fails.

This is more important than most people realize.  A prudent mariner should never enter a dodgy or unfamiliar harbor with the mainsail cover drawn and snapped closed and the headsail bagged or lashed to the deck.  (I know-- most people will claim that having a roller-furling headsail resolves this.  But the point still bears consideration.)  In such a state, if you were to suffer an engine failure you'd be hard-pressed to get anything up and drawing air before you crashed or went aground.  It's a matter of simple seamanship.

I've had the idea to have a regular spinnaker-pole lift that can also be used as a halyard for a small jib, what I call the 'canal sail', something small but useful to assist the motor, provide safety and redundancy and maintain steerage in freaky currents and conditions.  I decided to use the former winch mount on the starboard side of the mast and to reuse the old Seaboard halyard winch for this.  (The port side gets another winch base and a Lewmar #6; more on this later).

This exit block came from DAMCO (Dwyer Aluminum Mast CO.)  These people are the very best in the business, helpful, sensible and economical.  This block cost $26.00 and handles 5/16" line (actually 3/8" would fit but oughtn't be loaded to capacity).  A Schaefer one is over $90.00.  I cut this hole and mounted this thing using tapped 10-24 screws; it will get removed when it comes time for paint and then reinstalled.

I calculated the location using an original 1973 blueprint of this boat's sail plan which Skip Moorhouse, sailmaker and first owner of Hunter 25 hull no. 1, let me inspect.  Assuming a theoretical inner forestay about 3'9" aft of the headstay, it would land on the foredeck about 4' aft of the headstay plate.  So the place for this block is about 9'7" down from the top of the mast.  In this way I could, if I chose to, fit a tang here to accommodate an inner forestay and running backstays and so configure this little boat as a bona-fide cutter.  I just figure if you're going to install something like this, you might as well make some sense of it, if only in theory.

At the other end I have to add an exit plate on the starboard side, rather high up in order ti lead it down to the winch.  The existing two exit plates are for the two main halyards.

In reusing the old Seaboard winch I have to keep in mind that the handle for it is a hexagonal drive, unlike modern standard square-drive winches.  Apparently in the early days of top-action winches (about 1968-1978), there was no standard top-drive handle format (sounds eerily familiar to the development patterns of other technology!).  Fortunately I have one of these handles; though it might have been easy enough to just use the Seaboard winch as a snubbing winch and use arm strength to cleat it tightly each time-- it's only a pole lift on a 10-ft pole.  But now I have to ensure that I have room on the spar for two handle holders, one for each handle.

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