Hong Kong Regulations

MERCHANT SHIPPING (INSTRUCTIONS TO SURVEYORS) (PASSENGER SHIPS) REGULATIONS - REGULATION 74

Submission of construction plans and particulars

PART III

SUBMISSION OF CONSTRUCTION PLANS AND PARTICULARS

The plans and particulars referred to in paragraph 1 to be submitted to the
Principal Surveyor of Ships include those specified below and such other
information as may appear necessary for the full consideration of the
builder's proposals for complying with the Governments requirements for the
issue of a passenger or safety certificate. Such plans are to be in duplicate.

(1) Hull Structural Plans (Paragraph 2).

   (a)  Midship section, longitudinal section and other structural plans
        showing the principal hull scantlings, framing, pillars and girders,
        panting arrangement, strengthening of bottom forward and compensation
        in way of opening in the shell plating and strength decks.

   (b)  Plans showing details of the rudder and the principal hull castings or
        forgings including their connections to the hull.

(2) Subdivision Arrangements and Calculations (Paragraph 5 to 16).

   (a)  Outline profile and plans showing the margin line (corrected as
        necessary); all watertight transverse and longitudinal bulkheads,
        decks, inner skins, shaft and other tunnels, trunks and ventilators;
        recesses and steps in the watertight bulkheads; double bottoms; and
        principal openings in the watertight bulkheads and decks; the
        appropriation of spaces below the bulkhead deck; the positions of
        equivalent plane bulkheads; the lengths of the main transverse
        compartments and the weathertight arrangements at the forward end.
        Tunnels, recesses and steps are to be shown in plan and elevation and
        typical sections of the double bottom should be given.

   (b)  Subdivision coefficients and particulars on Forms B.H.1, B.H.1A, B.H.2
        and B.H.2A. Calculations of equivalent plane bulkheads; allowances for
        local subdivision and, if available, a copy of the builder's flooding
        calculations and curves. (See also paragraph 75(3)).

(3) Subdivision Structural Details (Paragraphs 17 to 25 and 28 to  47).

   (a)  Plans showing scantlings and details of construction of all watertight
        and oil-tight bulkheads, decks, inner skins, shaft and other tunnels,
        escape and other trunks. The pressure head upon which the scantlings
        of oil-tight bulkheads, decks, etc., are based should be indicated on
        the plans.

   (b)  Plans showing the arrangement, types and details of all side scuttles
        below the margin line.

   (c)  Plans showing the arrangement and detail of all side doors below the
        margin line.

   (d)  Plans showing the arrangement and particulars of ship's side
        discharges, including ash-shoots, rubbish shoots, etc.

(4) Arrangement above the Bulkhead Deck (Paragraphs 49 to 52):-

   (a)  Plans showing the arrangement and particulars of side scuttles above
        the margin line.

   (b)  Plans showing the arrangement and details of sidedoors above the
        margin line.

   (c)  Plans showing the arrangement and details of fire-resisting bulkheads,
        doors, etc.

   (d)  Plans showing the exits from watertight compartments and the
        arrangements for complying with the requirements of paragraph 51.

(5) Stability (Paragraphs 13 and 53):-

   (a)  Calculations of angle of heel made in connection with paragraph 13(8)
        and copy of relevant instructions issued to ship's Officers.

   (b)  Report of inclining experiment (paragraph 53) and copy of stability
        information issued to the operating personnel in accordance with
        paragraph 53(2).

   (c)  Amount and disposition of permanent ballast, if any (paragraph 53(3)).

(6) Plans and particulars of watertight doors (paragraphs 31 to 41, 46 and
48).

   (a)  An outline sketch, plan and elevation showing the margin line; the
        deepest subdivision loadline; the positions of the water-tight doors;
        openings in watertight bulkheads for air trunks and refrigerating
        trunkways; openings closed by portable plates and the leads of the
        shafting for the hand gear of the doors, etc.

   (b)  When power doors are to be fitted the following particulars, with
        plans as necessary-

        (i)    Sources of power for operating the doors.

        (ii)   Arrangements for transmitting the power from the central
               closing station for operating the doors.

        (iii)  Gauges or indicators at the central closing stations, which
               show whether the power is available for operating the doors.

        (iv)   Indicating arrangements at the central closing station for
               showing whether the doors are open or shut.

        (v)    Warning signals operating when the closing power is about to be
               applied.

   (c)  Detailed plans of the different doors showing-

        (i)    the various gears for operating the doors by hand and power.

        (ii)   the indicators for showing when the doors are closed by hand.

        (iii)  the screens for preventing coal interfering with the closing of
               bunker doors.

(7) Plans of under water ash ejectors and expellers, and valves and other
fittings for preventing the accidental admission of water into the ship. (See
paragraphs 46 and 48).