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SACHIYO Specification

the gazelle for the Malabar Yacht Club

 

About

SACHIYO is the name given to the Malabar Yacht Club gazelle specification which was decided by the Club after 3 seasons of commercially operating gazelles on the West Coast of India. The name is the name of the first vessel to be built to the specification - due to be launched October 2008 - and in Japanese means Happy World. The specification is ideal for warm, humid climates. SACHIYO is designed for taking guests on coastal and offshore passages.

 

PART 1 - Overview

 

Main features

The main features of SACHIYO are:

 

raised aft cabin

This is really an essential design option of the original gazelle plans. Without this the aft cabin is pretty dull and with little head room. With it the aft cabin is transformed. By extending the raised portion no further aft than the original hatch no deck space is lost, and by keeping the profile low no additional significant windage is likely.

 

air conditioned lounge

The raised aft cabin is used solely as a lounge area with a/c and drinks cooler! This is not just for "comfort" but it also keeps the weight aft minimal - essential to achieve good sailing performance in the design.

 

roof ventilation

Portlights are no longer used to provide ventilation in the main cabin - their only purpose is to provide light. Ventilation is provided by a split roof system which has the following advantages over opening portlights:

- it provides more surface area to the wind - twice as much as all the portlights combined

- it channels the wind into the cabin

- when open it is protected against water ingress from rain and deck wash

The split roof ventilation can be very securely closed to prevent water ingress.

 

aft deck sun-lounge

The aft deck is teak laid and fitted with roller blinds to make for a very comfortable and attractive sun lounge. Sail handling is mostly unaffected by the roller blinds.

 

tabernacled Masts

Whilst not a requirement for many people it was required by the Malabar Yacht Club since access to certain facilities was past low bridges.

 

main cabin interior layout

The main cabin provides a spacious galley, navigation station, 6 bunks, baggage storage, toilet and shower. There is no seating area - this is provided in the a/c aft cabin. This is different to many yachts where the main cabin is the living area. With SACHIYO the main cabin is purely functional - cooking, sleeping, navigation, storage.

 

PART II - Detailed Specification

 

Introduction

This document is the specification for a sailing vessel (the SACHIYO Specification). The name of this document is SACHIYO Specification.

SACHIYO is a steel hulled 42 ft. junk-rigged schooner based on the design 103 "Gazelle" by the American Naval Architect, Thomas E Colvin.

 

Terms and definitions

KSM means Kondo Syokai Marine

P/S means port and starboard

manuf means manufacturer

MS means mild steel

GS means galvanised steel

SS means stainless steel - 304 unless otherwise specified

 

The specifications

The SACHIYO Specification derives in part from drawings, in part from International Standards and in part from the written details contained herein.

 

International Standards

The vessel shall comply with the following International Standards

• BS EN ISO 10133:2001 Small craft - Electrical systems - Extra-low-voltage d.c. installations

• BS EN ISO 10239:2000 Small craft - Liquid petroleum gas (LPG) systems

• BS EN ISO 9094-1:2003 Small craft - Fire protection - Part 1: Craft with a hull length of up to and including 15m

These standards are hereby incorporated into the SACHIYO Specification.

In the event that there exists a conflict between the aforementioned International Standards and the specifications hereinafter detailed then the International Standards shall prevail.

 

The Drawings

The drawings used (the Drawings) and the specifications derived from each (Specifications As Drawn) are listed below.

  Drawing                   Specification As Drawn
  Colvin 103-1-J            sailplan
  Colvin 103-2-J            lines and offsets
  Colvin 103-4-J            scantlings
  KSM SACHIYO-INT-ARRGT     as drawn
  KSM SACHIYO-AFT-CABIN     as drawn
  KSM-SPLIT-ROOF            as drawn

The Specifications As Drawn are hereby incorporated into the SACHIYO Specification except where the words "as drawn" are used in which case the respective drawing is incorporated in toto into the SACHIYO Specification. For the avoidance of any doubt, the Drawings are not part of the SACHIYO Specification except where the specification is "as drawn".

In the event that there exists a conflict between Specifications As Drawn, the specification lower down the list shall prevail over any specification higher in the list

 

Written specifications

The remainder of the SACHIYO Specification is detailed hereinafter (Written Specifications)

In the event that a conflict exists between the Specifications As Drawn and the Written Specifications the Written Specifications shall prevail.

 

Materials

All steel used shall be mild carbon steel - minimum 10 gauge - unless otherwise specified herein.

All wood used shall be marine grade ply or solid wood.

The interior decorative wood finishes shall be of teak

The cabin roof sides and handrails shall be of teak

The wooden cleats shall be of teak

 

Hull

The hull shall be of steel

Sacrificial anodes shall be fixed by bolting to tabs welded to the hull

 

Steel sections

Where any steel section noted in Specifications As Drawn is not readily available it shall be exchanged for another section after taking written advice from a qualified Naval Architect

 

Ballast

The ballast shall be of lead bricks secured in place with steel rods except as detailed hereinafter.

A concrete ballast shall be permitted in the chain locker and the next frame aft

 

Insulation

Insulation shall be fibreglass bats fitted above the waterline

 

Coatings

Coatings shall be 2 pack epoxy paints from Shalimar. The following schedule shall be used:

  Sr.No  Product Name            Coats 
Above Water       
   1     zinc phospate primer    6
   2     top coat                3
Under Water                    
   1     zinc phosphate primer   6
   2     high build coal tar     2
Interior
   1     zinc phosphate primer   6
   2     grey top coat           3

 

Decoration

• The colour of the hull above the waterline and the deck shall be white

• Vessel name and Port of Hail shall be painted on the bows and transom

• optional - the green stripe and red star of the Malabar Yacht Club

 

Antifouling

2 coats of Shalimar Shalispeed antifouling shall be applied below the waterline and on the splash area under the aft cabin

 

Tankage

• water: 60 US gallons fibreglass tanks

• fuel: 37 US gallons

 

Deck

• the stanchions and guard rail shall be painted MS

• a removable teak decking shall be fitted on aft deck

• a non-slip sacrificial deck finish shall be fitted from aft cabin to forward of gate

• 2 nos deck boxes P/S shall be fixed at forward end of cabin roof

 

Masts and Spars

• masts shall be seam welded carbon steel fitted in tabernacles

 

Sails

• material shall be 10.2 oz army duck

• rings for tack, clew, head and nock shall be brass, hand stitched and fitted with brass liners

• battens shall be of bamboo

 

Rigging

• shrouds shall be secured using deadeyes

• all sheets shall be led back to steering position and cleated off

• cleats shall be fitted at masts for securing halyards and snotters

• pin rails shall be fitted at masts for halyards, snotters, jib sheets (main mast)

• sheer pole shall be fitted atop the shroud deadeyes for fore sheets, lazyjacks and main sheets

 

Vessel systems

 

Auxiliary

• Simpson Marine S-217 Diesel

• ZF 12M reduction gear

 

Steering

• worm gear, KSM manuf.

• 30" ships wheel, teak and SS, KSM manuf.

 

Anchoring and mooring

• combination windlass/bitts/navel vent trunk, KSM adapted Colvin

• chain locker - drainage to main bilge tank

• post mounted gypsy with twin drums, KSM manuf

• catheads P/S

• aft. qtr. bitts P/S (SS)

• bow chocks P/S (SS)

• 2 nos. Colvin Standard 35# kedge anchors

• rodes:

• 50 fathoms 5/8" nylon + 5 fathoms 5/16" GS chain + swivel

• 28 fathoms 5/8" nylon + 5 fathoms 5/16" GS chain + swivel

• 6 nos. mooring lines, 7 fathoms ea. 30" eye splice one end, seizing on other end

• rubbing strake fixed using SS bolts welded to hull

• marine ply deck protection - covering in bow area forward of the windlass

• anchor rest on railcap forward of rubbing strake

• 6 nos. fenders - plastic

 

Bilge

• 1 nos. manual pump operable from main cabin

• 3 nos. submerged electric pumps operated by float switches with manual over-ride operable from the switch panel

• Y-valve to connect engine raw-water intake to bilge

 

Electrics

• 12v system

• lead-acid batteries - Bosch, 2 nos.

* engine battery

* house battery

• 2 alternators - 36A for engine battery, 60A for house battery

• switch panel with fuses

• isolating switch

• ammeter and voltmeter on switch panel

• cigarette lighter socket

• battery hookup for attaching spare battery and charging

The electric system shall comply with BS EN ISO 10133:2001 Small craft - Electrical systems - Extra-low-voltage d.c. installations

 

Sweet Water

• Filler pipe through anchor bitts

• 1 nos. fibreglass tank just aft of chain locker

• 12v electric pump, pumps water to header tank fitted inside starboard deckbox

 

Raw Water

• Sea chest in engine room with feed to engine, toilet and spare. Fitted with removable strainer and filter

• Sea chest is removable for servicing

 

LPG

Provision is made for the storage of 2 nos. LPG cylinders on the cabin roof.

The LPG system shall comply with BS EN ISO 10239:2000 Small craft - Liquid petroleum gas (LPG) systems

 

Fixtures and fittings

• lockers are provided with finger openings

 

Windows, lights and ventilation

• port lights - 7" non openers:

• aft cabin: 3 nos. P/S

• main cabin: 5 nos. P/S

• ventilation:

• main cabin - split roof system

• aft cabin - a/c

 

Equipment

 

Navigation

The compass is mounted on the cabin roof and is specially selected for proper operation on a steel hulled vessel

• compass, Silva 125-S supplied with deviation table

• ships clock

• ships barometer

• lights

• running

• anchor light fitted top mainmast

• steaming light fitted top foremast

• sound equipment

• ships whistle

• radar reflector, RORC type, 340mm x 340mm x 470mm (7m ² RCS)

• Raymarine ST-40 echo sounder

• sounding lead and line

 

Radio comms

• DSC VHF Radio. Antenna fitted to port shrouds

 

Miscellaneous

• decks lights 4 nos fitted top main mast

• 10 ft. boat hook

• roller blinds for aft deck

• boarding ladder

 

Ships tender

• Colvin standard "Auray Fishermans Dinghy" fixed to stern davits with oars/rowlocks

 

Safety

• plastic covered steel lifelines

• bowsprit netting

• jackstays P/S

• secure points for attachment at companionway access

• nonskid surface on decks (not on teak aft deck)

• 3 nos. smoke detectors wired to main switch panel

• 2 nos. lifebuoys

• emergency bungs securely fastened at all underwater outlets

• all glass to be toughened/reinforced.

• lightning rod fitted to top of main mast

• 12 man SOLAS A liferaft

 

Fire safety

• all foam used in soft furnishings certified as being fire retardant

• fire extinguishers:

• 2 nos. 5A/34B

• 1 nos. 21A/113B refillable 4kg

• 1 nos. Automatic 1kg

The vessel shall comply with BS EN ISO 9094-1:2003 Small craft - Fire protection - Part 1: Craft with a hull length of up to and including 15m

 

Matters for other documents

 

Third party inpection

 

Weld testing

 

Spare parts