Noyce Yachts
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Tayana 53
Engine and Machinery
The main auxiliary engine is to be a Yanmar 4JH3-HTE with KMH-14A1 hydraulic clutch transmission with 1.93:1 gear reduction. The instrument panel is to be a Yanmar digital C-type. The propeller shaft is to be an Aquamet or stainless steel round billet 1 ½" in diameter and approximately 7' length. The engine is to be mounted on an FRP engine bed utilizing flexible motor mounts. The engine is to be located beneath the raised main saloon. The main engine is to be equipped with a 100 amp alternator.
  • The shaft stuffing box is to be a drip-less type and to be easily accessible.
  • The engine enclosure is to be well ventilated and insulated against sound.
  • The exhaust system is to be water cooled and to utilize a surge tank. The exhaust hose is to be wire bound steam hose and to be insulated against sound and temperature.
  • There is to be a Northern Lights M 753 K series electrical generating set located in the engine and machinery space below the raised main saloon.

DECK LAYOUT AND DECK HARDWARE:
Primary winches are to be a pair of Lewmar no. 58AST. Secondary winches are to be a pair of Lewmar no. 50AST. These winches are located on the after portion of the coaming extension of the raised saloon deck house as shown in the attached renderings.

Halyard and main sheet winches are to be Lewmar no. 40AST. There are a total of four such winches located near the companionway on the raised saloon deck house as shown in the attached renderings.

Deck organizers are to be Lewmar no. 2990 6653. There art to be six such organizer located on the coachroof of the raised saloon deck house as shown in the attached renderings. These organizers allow all running rigging emanating from the mast to run free of chafe along the top of the coachroof.

There are to be two Lewmar no. 2910 3016 rope clutches located as shown in the attached renderings on the coachroof of the raised saloon deck house.

The companionway hatch is to be constructed to a RLYD detail drawing and to consist of a smoked Plexiglas top and solid teak sides.

The main traveler and mainsheet system is to be comprised of the following;

  • Lewmar no. 2990 7300 track, 8' length
  • Lewmar no. 2990 3301 mainsheet car
  • Lewmar no. 2990 5301 end stop with sheave and becket
  • Lewmar no. 2990 1105 mainsheet double boom block with becket
  • Lewmar no. 2990 1102 lower mainsheet double block

Jib track and car system is to be comprised of the following:

  • Lewmar no. 2991 7200 track, 16' length
  • Lewmar no. 2990 3255 port side car
  • Lewmar no. 2990 3256 starboard side car

Note: jib track and car are not shown at this time on the attached renderings of the yacht.

Deck hatches are to be provided by Lewmar as follows:

  • Foredeck hatch to be Lewmar no. 39965030, size 65, low profile hatch
  • Hatches forward of the mast and aft of the foredeck: Lewmar no. 3994030, size 44 low profile hatch, qty 4 (minimum sized EC escape hatch)
  • Hatches on coachroof of raised saloon deck house: Lewmar no. 3994030, size 44 low profile hatch, qty. 2

Yet to be determined is the location and size of any port lights that make up part of the deck hardware list.

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GENERAL DESCRIPTION, HULL AND DECK GEOMETRY:
As shown in the attached renderings, the deck geometry includes twin steering stations located far aft for the ideal helm location. Each helm station is provided with a 36" Edson or similar steering wheel and cable and quadrant steering system, coupled so that the turn of the port wheel turns the starboard wheel. A 1" diameter stainless steel grab rail is located adjacent to the steering and compass binnacle. Appropriate instruments provided by Tack Tick or similar is to be mounted to the grab rails. The main cockpit resides just forward of the steering stations. A folding leaf table is to be provided in the center of the main cockpit well. The configuration of this table is yet to be determined. The main cockpit leads forward by means of two steps onto the bridge deck. The bridge deck is protected by the coaming formed by the extension of the raised saloon deck house. The mainsheet is to be let in flush to the bridge deck as shown. The raised saloon deck house features a sliding companionway hatch on the centerline with two Lewmar hatches forward to provide light and ventilation to the raised saloon. A curvaceous coaming extends from port to starboard and over the companionway hatch keeper so as to provide location for a folding dodger. The forward face of the raised saloon deck house is comprised of a windshield that also sweeps port and starboard to form the side windows as shown. Of note is the fact that this windshield and side window geometry is developable and therefore neither expensive nor complex to build. The foredeck house is low and disappears into the forward portion of the main working deck. Located on the foredeck house are four Lewmar hatches. At the forward end of the foredeck house is located a trapezoidal Lewmar hatch. At the stem of the yacht is located a Lewmar capstan/chain gypsy windlass, stainless steel skid plate and anchor sprit. The deck geometry throughout provides a minimum of 6' 4" and a maximum of 6' 6" throughout the interior of the yacht. The hull form is of moderate displacement and created to provide the best possible overall performance given the cruising nature of the yacht. Following this document is a two page hydrostatic study of the hull. The transom surface is compound in nature and provides an opening to the helm cockpit. Further design development contemplates the inclusion of steps in the transom that would lead to a platform near the low point of the transom.

INTERIOR
While the interior arrangement remains at this time a work in progress, it is contemplated that both a three cabin and a two cabin a arrangement will be provided. A three cabin arrangement would include an owner's cabin aft with separate head and shower, hanging lockers and drawers. The berth is to be configured as large as possible with minimum dimensions describing a "Queen" sized bed. Also considered is a vanity with desk and chair in the owner's stateroom. Leading forward from the owners stateroom is to be the raised saloon. The raised saloon is to include a raised dinette to port and hanging locker, electrical distribution panel and navigation station to starboard. Leading forward from the raised saloon is to be located the galley to port and a breakfast dinette to starboard. The breakfast dinette may be configured for occasional sleeping or for off-watch use. Leading forward from the galley/breakfast dinette is either one or two guest cabins. Forward of the guest cabins is either one or two head facilities with showers. Forward of the forward head facilities is to reside sail storage and anchor chain and rode storage. The style of the interior joinery is to be contemporary and elegant in keeping with the style of the exterior of the yacht. This architect welcomes the opportunity to create new, fresh and striking detailing to the general flavor of the interior.

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KEEL AND RUDDER CONSTRUCTION AND GEOMETRY
There are to be a variety of keel configurations offered. All shall be cast of iron or lead depending upon the specific geometry. A 7' 6" moderate draft bulb keel is shown in the attached renderings of the yacht. Other keel configurations are to include a 5' 10" shoal draft cast lead bulb keel, a 6' 9" cast lead wing keel, a 7' 6" cast lead keel and an 8' 6" cast iron keel. All keel variants include a monolithic key cast into the upper or root chord face. This key is to mate with a matching key-way molded into the longitudinal structure. In this fashion, all keel variants will be properly placed and attached to the hull in the same way. The rudder is to be of a balanced spade configuration and to be constructed of polyester resin reinforced fiberglass with a low density foam core. The rudder is to be reinforced by means of a stainless steel matrix welded to the stainless steel rudder post. The rudder post is to reside within Tides or similar self-aligning rudder bearings. The steering system is to be comprised of twin steering stations as illustrated in the attached renderings of the yacht and to utilize a cable and quadrant system provided by Edson or similar. All steering machinery resides aft of the aft structural bulkhead. The following rendering illustrates a rudder and post geometry similar to that intended for the deep draft keel and rudder variant.

MAST AND RIGGING
The mast and boom are to be constructed of anodized 6061 T6 aluminum. The rig is to be of a three spreader with intermediate, upper and lower shroud configuration. All standing rigging is to be die-formed 1x19 wire rope. Jib furling is to be included and supplied by Harken, Schaefer or similar. In-boom mainsail furling is to be offered optionally. A removable inner forestay is to be provided such that it may reside when not in use attached to the mast collar. All halyards, the main sheet, and topping lift are to exit the mast and lead through deck organizers to the after portion of the raised saloon deck house. There is to be provided deck lighting located on the underside of the lower spreaders. A tri-color running light is to be located on the top of the mast crane. The following are to be included: a spinnaker pole and associated running rigging, port and starboard flag halyards, a rigid boom vang, turnbuckle boots, a tie rod between the mast collar and mast step, an adjustable mast step, double backstays; one insulated for use as a SSB antenna, and a Windex wind direction indicator.

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