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classed by other classifying associations, such, for instance, as the Bureau Veritas or the British Corporation, or unclassed.

Para. 1. Length.—The length of erections is to be measured with reference to the length of the vessel on the load-line, i.e., any por. tion of the erections forward of the fore side of the stem on the load-line, or abast the after side of the after post on the load-line, is not to be measured for deductions.

Para. 3. Depth of Hold. The depth of hold as used in the computation for ascertaining the coefficient of fineness in iron and steel sailing vessels is to be measured to the top of the ceiling, and in steam vessels to the top of the floors.

Para. 4. Coefficient of Fineness.—No alteration is to be made in the free board in consequence of the coefficient of fineness being either smaller or greater than those given on the page of the tables from which the ship's freeboard is taken.

Para. 5. Moulded Depth.-In cases where a wood deck of extra thickness is fitted, or where a wood deck is doubled throughout, the moulded depth should be increased by the excess of thickness. The freeboard should then be set off from the top of the deck of increased thickness at the side of the vessel.

Para. 6. Freeboard.— In case of the freeboard being ascertained by an actual calculation of the reserve buoyancy, the drawing used in such calculation should be verified by actual measurements at the ship, and such drawing and calculations forwarded to the Board of Trade, and whatever the result of the calculation the freeboard assigned should not be less than would be obtained by taking from the tables the freeboard corresponding to the smallest coefficient for a vessel of the same moulded depth, except in sailing vessels with large rise of floor. (See page 76.)

Freeboard as ascertained by these tables is to be measured to the intersection of the deck with the side of the vessel, but in granting certificates of freeboard this must always be corrected so as to stale the freeboard amidships when measured to the deck-line, marked in accordance with the statute.

Sub-paras. (a) and (6).–For vessels having iron upper-decks not covered with wood, the allowance is to be made under sub-para. (a), when the erections extend over less than Aths of the length; but in all vessels when the erections cover 4,ths or more of the length, and in spar and awning-decked vessels the allowance is to be made under sab-para. (6).

Sul-para. (1)--0)-In spar-decked vessels having iron spar decks, and in awning-decked vessels having iron main decks, the freeboard by the tables should be calculated as if those decks were wood covered, i.e., the ordinary thickness of a wood deck, less the thickness of the stringer plate, should be deducted from the freeboard, also in vessels where ths or more of the main deck is covered by substantial enclosed erections, the free board found from the tables should be measured amidships from a wood deck, or, if the deck is of iron, it should be measured from the iron deck, and the ordinary thickness of a wood deck required for that size of ship, less the thickness of the stringer plate, should in that case be deducted from the freeboard. In vessels which have ths of the deck covered, %ths the thickness of a wood deck, less the thickness of the stringer plate is to be deducted from the freeboard. Between ths and is ths a proportionate quantity ; for example, for Roths covered allow ths the thickness of the deck, after deducting the thickness of the stringer plate. The remainder of the paragraph should be read as printed. N.B.-When the deductions referred to in this sub-para. (b) are allowed, the moulded depth is not to be reduced as per sub-para. (a), para. 6.

Para. 9.-If the erections are at all under foths of the vessel's length, the entire correction for length as given in the tables is to be applied.

Para. 11.—This paragraph does not apply to vessels where the erections cover less than ths of the length, except in cases where the after erection covers at least toths of the length, and the total length covered is between ths and ths the length of the vessel. In such cases the allowance should be proportioned between that allowed for erections ths the length under para. 14 and that allowed for erections covering 19ths of the length under para. II, and the corrections for length and sheer should be included in estimating this allowance. In all other cases of vessels with erections covering less than 1%;ths of the length, para. 14 is to be used.

No allowance is to be made for a monkey forecastle which is less in height than the main or top-gallant rail; where this condition is satisfied, the length to be used in estimating the allowance is to be obtained by multiplying the length of the monkey forecastle by its height and dividing by 6 ft., the minimum height of a topgallant forecastle. This rule applies to vessels coming under paras. 12, 13, and 14, as well as under para. II. In case of vessels having no forecastle, but in other respects coming under this para., the allowance for erections should be estimated on the supposition that there is a forecastle fth the length of the vessel, deducting from this twice the allowance which the vessel would have for such a forecastle under para. 15.

In strong well-decked vessels of the modern type, having erections covering at least 16ths of the length of the ship, the bridge-house alone covering at least 4ths of the length, the maximum allowance for extra strengthening are as follows :

Vessels with plating number under 18,000, 2} inches.
Vessels with plating number 18,000 to 21,000, 3 inches.
Vessels with plating number 21,000 to 24,000, 3 inches.

Vessels with plating number 24,000 to 27,000, 31 inches. The extra strength is to be as given in section 44, Lloyd's Rules for 1889 for iron and steel vessels. The freeboards assigned to these vessels must never be less than would be assigned for a complete awning-decked vessel of the same dimensions. The allowance prescribed below for well-decked vessels with strength. ened bridge bulkheads is not to be given in addition to the allowance under this clause.

In part awning-deck vessels with raised quarter-decks and long superstructures strengthened as required for the strong well-decked vessel referred to above, and where the break of the quarter-deck is idth the vessel's length abast amidships, a reduction may be made from the free-board required by Table C, in accordance with the foregoing scale.

When the break of the quarter-deck is not less than joths the length of the vessel abaft amidships, iwice the abovementioned allowance may be mai'e, and for intermediate lengths of erection the allowance is to be obtained by interpolation.

For raised quarter-decks of less than our feet in height, whether in part awning.decked vessels or vessels to which paras. 11 and 12 apply, and extending over four-tenths of the length and forming an integral portion of the vessel, the allowance for the erections should be diminished as shown in the following table :

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For shorter lengths of raised quarter-decks a proportionate correction should be made.

Well-decked vessels classed 100 A, having erections extending over oths of their length with strengthened bridge bulkheads, freeing port area 25 per cent. in excess of the rule, and hatchway coamiigs at least 30 inches high, may have an allowance of 12th the summer freeboard after all other corrections are made, but the allowance is not to exceed 2 inches.

Well-decked vessels of lower class, or with longer wells, &c., are lu have a smaller allowance in accordance with the following scale :

For 90 A class allow fin less than for 100 A.

For So A class allow {in less than for 100 A. For erections covering 65 to 70 per cent. of the vessel's length, allow } inch le·s than that for 70 per cent. and above ; and for coamings 24 to 30 inches high, allow } inch less than if 30 inches and above.

Sub-para. (a).--The difference will not be affected by correclion for lengih, as the allowance will be practically the same in both tables.

A proportionate allowance may be made for erections having a combined length of Liths, in which case the reduction in freeboard will be iths of the difference between freeboards in Table A. (after correction for sheer) and Table C.

Sub-para. (c).-The engine and boiler openings, if protected only by a raised quarter-deck, will require an addition in freeboard varying from i inch in vessels of 15 Icet moulded depth to 2 inches in vessels of 20 feet moulded depth.

If with a small bridge-house in front of, but not covering, the openings, an addition of half the above amount.

The table is to be used in connection with paras. 11, 12, and 13, but is not applicable to deck erections provided for by para. 14.

Suh-para. (e).-If the crew are not berthed in the bridge-house, and the arrangements to enable them to get backwards and for wards from their quarters are not satisfactory, an addition should be made to the freeboard of i per cent. of the moulded depth of the ship, except in cases where the well is 80 feet or more in length, or where the vessels are under 150 feet in length.

Sub-para. ().-The minimum freeing port area is to be as tollows:

SCALE OF FREEING PORT AREA.

Length of Bulwarks in “Well,"

in Fect.

Freeing Port Area on each side

in Square Feet.

30 35 40 45 50 55

95 10 TO'S 11 II'5 12 12'5

65 and above, 1 square foot to each 5 feet length of bulwark.

If the freeing port area is less than that stated above, an addition is to be made to the freeboard of i per cent. of the moulded depth.

The additional freeboard for North Atlantic winter for well-deck vessels is to be as follows :

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but the above addition should never be less than in the case of an awning-decked ship of the same dimensions.

Para. 12.-For vessels having no forecastle, but with the other deck erections prescribed in this paragraph, estimate the allowance for erections supposing there is a forecastle {th the length of the vessel, and deduct i} times the allowance that would be made under para. 15 if the vessel were fitted with such a forecastle only.

This rule also applies to vessels having no forecastle, but with a bridge-house, as provided for in para. 13.

For lengths of erection covering toths, allow a deduction of jagths, the difference of the freeboard. For oths allow a deducuon of 1,ths; for ioihs allow ths.

For ths allow a deduction of ths, and for 6ths allow oths, the difference of the freeboards.

For erections which extend over less than fiths the length of the ship, the allowance is to be in proportion.

For instance, if paths are covered, allow fths of 33 per cent.

In the case of vessels under 15 st. moulded depth, in which the combined length of enclosed erections exceeds fins of the vessel's Jength, or in which the combined length of erections enclosed, and open, is equivalent to more than oths of the vessel's length, subparagraphs (e) and (f) of the preceding paragraph are to apply; but the full addition of one per cent. of the moulded depth under each of these sub-paragraphs is to be made only when the erections cover ths or more of the length; for lengths of erections intermediate between oths and oths, the required addition is 10 be in proportion; thus, when oths of the vessel's length is covered, the addition to the free board is to be per cent. of the moulded depth under each sub-paragraph.

Paras. 12 and 13.— The allowance in a sailing ship for a bridge. house in addition to a poop or forecastle, or in addition to a fore. castle only, is obtained by the rules laid down in paras. 12 and 13, as the case may be, and is calculated upon the difference between the freeboards of Tables A and C; in other words, the allowance for a forecastle, bridge-house, and poop, or for a forecastle and bridge-house in a sailing-ship, is the same as would be given for siinilar erections in a steamer of the same dimensions.

Fira. 13.-When the combined length of the topgallant fore. castle and bridge-house is ths of the length of the ship, a deduction from the freeboard may be made of 10ths, and this is the maximum deduction for this type of vessel.

For erections which extend over less than 1ths of the length of the ship the allowance is to be in proportion.

For instance, ths covered allow Źrds of 25 per cent.

In all the rules governing the deductions to be made from the freeboard it is to be understood as follows :-When the topgallant forecastle is not closed by an efficient bulkhead at the after end, the length is never to be estimated at a greater full value than {th the length of the ship, but any extension beyond this may be estimated at one-half the value. For instance, if a vessel 240 ft. long has an open forecastle 80 ft. long, its value for deductions is 30+25=55 ft. When the topgallant forecastle has an efficient bulkhead with an elongation abast that bulkhead not enclosed at the after end, the full value of the closed-in portion is to be estimated either as gth the length of the ship or the entire length of the enclosed portion, whichever may be the greatest.

Open bridgehouses.- When the bridge-house extends from side to side of the ship, its value for deductions must be considered on its merits, which will depend upon the security of all deck openings, doors, bunker lids or otherwise.

Where these are all properly protected, and the alley-ways are open at both ends, one-half the length may be estimated as the value for deductions. Where, in addition, the fore end is enclosed by an efficient bulkhead, fths the length may be estimated as the value for deductions.

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