Specifications

1.5. Architect’s Drawings
As per contract.
1.6. Welding
When welding is required the American Bureau of Shipping Rules for Construction of
Yachts, shall be used as guidance in welding steels and other metals. All aluminum
welding shall be by shielded inert gas process MIG (gas metal arc) or TIG (gas tungsten
arc) or equal. External welds shall be ground flush. Work with serious burning or
undercutting must be cut out and re-welded. Joint preparation and welds shall be in
accordance with “Alcoa Handbook on Welding”. The proper sequence of welding shall
be followed to avoid distortion. Dye penetrant checks shall be made as required. All
stainless steel welding of exposed parts or fittings shall be ground smooth and finished
with a high polish.
1.7. Lofting
The Architect can provide the superstructure geometry as offsets, plans, full size mylars
or computer data files of the sections.
1.8. Trials & Tests
Prior to trials, all machinery, equipment and systems shall have been operated by the
Builder. The magnetic compasses shall have been compensated. The fresh water
system shall be decontaminated; including tanks. Fuel oil tanks and piping shall be
flushed with diesel oil, bypassing machinery.
The Builder is to install without cost such apparatus as the Architect or engine
manufacturer may provide for the purpose of taking pressures, fuel consumption,
ventilation, deliveries, or other data for the duration of the trials. Exhaust back-pressure
readings must be determined.
Dockside trails shall include operation of the main machinery for two hours at as much
speed as is practical without undue heating to the satisfaction of the manufacturer’s
representative. All auxiliaries and systems such as pumps, electric plant, heating
system, anchor windlass, plumbing and fresh water system as well as mechanical
devices and gear shall be thoroughly tried and operated under load to determine
compliance with specifications. Handling of boats, gangways, anchors, and other gear
shall be demonstrated. All electrical equipment shall be tried out and demonstrated to be
in proper working order.
W.T Bulkheads, hull, deck, hatches, etc. to be given hose tests for water-tightness. Fuel
and water tanks shall be tested to a hydrostatic head equal to a height of (2 feet) 0.61m
above the fill cap.
The ventilation and air-conditioning system shall be tested for deliveries, temperature,
humidity control, general operation, and cycling. Provision for proper condensation
drainage shall be checked.
The yacht shall undergo sailing trails to the satisfaction of the Owner. After satisfactory
dockside trials, powering trials will be run over ranges of speed from low to maximum
full power. Trials are to include maneuvering, reversing and turning. The steering gear
shall be tested. The emergency steering arrangement shall also be tested.
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