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Limit of L.W.L.-One half (1) of any excess of L. W:L. over one hundred and fifteen per cent (115%) of L shall be added to the rating measurement.

The L.W.L. shall be the distance in a straight line between the points farthest forward and farthest aft, where the hull, exclusive of the rudder post, is intersected by the surface of the water when the yacht is afloat, in racing trim.

Limit of Draught. — Limit of draught in feet = .133 (rating measurement) + 2.66.

Any excess of draught, exclusive of centre-board, as per above formula, shall be multiplied by five (5) and added to the rating measurement.

The draught of any vessel, exclusive of centre-board, shall not exceed eighteen (18) feet.

Limit of Sail Area. — Any excess of the square root of sail area over one hundred and thirty-five per cent (135%) of I shall be added to the rating measurement.

All measurements of hull shall be taken with only such persons on board as shall be required by the measurer.

All measurements specified may be certified to by the designer, in a certificate to be filed with the measurer of the club, but such certificate must be accompanied by drawings, showing the measurements taken, and the true line of flotation of the vessel when measured in racing trim, which measurement and line of flotation must be verified by the measurer, before any certificate of measurement shall be accepted by the secretary.

If from any peculiarity in the build of a yacht, or other cause, the measurer shall be of opinion that the rule will not rate the yacht fairly, or that in any respect she does not comply with the requirements of these rules, he shall report the circumstances to the Regatta Committee, who, with the measurer, after due inquiry, shall award such a certificate of rating as they may consider equitable, and the measurement shall be deemed incomplete until this has been done.

CLASSIFICATION.

Schooners. — Class A. All over 100 feet, rating measurement.

Class B. Not over 100 feet and over 80 feet, rating measurement.

Class C. Not over 80 feet and over 64 feet, rating measurement.

Class D. Not over 64 feet and over 51 feet, rating measurement. Class E. Not over 51 feet, rating measurement.

Single-masted Vessels and Yawls. — Class F. All over 100 feet, rating measurement.

Class G. Not over 100 feet and over 80 feet, rating measurement.

Class H. Not over 80 feet and over 64 feet, rating measurement.

Class I. Not over 64 feet and over 51 feet, rating measurement.

Class J. Not over 51 feet and over 40 feet, rating measurement.

Class K. 40 feet and under, rating measurement.
Sails. — Yachts in races may carry the following sails :-

Schooners. — Mainsail, foresail, fore stay sail, jib, flying-jib, jib-topsail, fore and main gaff topsail, maintopmast staysail, and spinnaker.

Sloops and Cutters. - Mainsail, fore staysail, jib, flyingjib, jib-topsail, gaff topsail, and spinnaker.

Yawls. — Same as sloops and cutters, with mizen and mizenstaysail.

Balloon Sails. — Yachts may set light sails over working sails.

Boats and Life-Buoys. — All yachts shall carry at least two serviceable life-buoys on deck ready for use.

Classes A and B of schooners, and F and G of single-masted vessels and yawls, shall carry on deck a serviceable round-bottom boat, not less than 14 feet in length ; and classes C and D of schooners, and H and I of single-masted vessels and yawls, a boat as above, not less than 12 feet in length; and in classes E of schooners, and J and K of single-masted vessels and yawls, a boat as above, not less than 10 feet in length. All boats to have oars and rowlocks or tholepins lashed in.

Bulkheads, Ballast, etc. — Floors must be left down and bulkheads and doors left standing; water-tanks kept in place, and at least one bower anchor and cable kept on board. All yachts, except in classes A of schooners and G of single-masted vessels and yawls, shall keep their galley fixtures and fittings on board and in their proper places. Trimming by dead-weight shall not be allowed after the preparatory signal. Neither ballast nor water shall be taken in or discharged after 9 P.m. of the day before a race, but the above restriction may be waived as to water, only by permission.

Crew. - The number of men permitted on a yacht during a race shall not exceed that given by the following table :

Classes A and F. One man for every 250 square feet of sail area, or fraction thereof.

Classes B, C, D, E, G, H, I, J, and K. One man for every 300 square feet of sail area, or fraction thereof.

BUILDERS' OLD MEASUREMENT TONNAGE. This tonnage, commonly called B. O. M., is still much in vogue with yacht builders, but obsolete otherwise.

(L - $B) X BX 4B B.O.M. =

94 where L is the length of vessel measured along top of keel from after side of stern post, to the intersection of a perpendicular with the fore part of stem under the bowsprit, and B is the extreme breadth to outside of planking, exclusive of doublings.

THAMES MEASUREMENT TONNAGE.

This rule was formulated by the Royal Thames Yacht Club, and is much used for the measurement of yachts.

(L-B) XBXB T.M. =

94

where L is the length measured in a straight line at the deck from the fore part of stem to the after part of stern post, and B is the extreme breadth to outside of planking.

SECTION VI.

WEIGHT OF A CUBIC FOOT OF SUBSTANCES.

NAME OF SUBSTANCES.

POUNDS

A.
Acacia
Alder.
Aluminum, cast
Aluminum, sheet
Aluminum, bronze
Alum.
Antimony
Anthracite coal, broken, cubic foot averages .

A ton, loose, occupies 40-43 cubic feet.
Apple wood
Air
Ash (American)
Asphalte
Asbestos Board }" thick, per square foot .

44.4 34.6 160 168 478 107 417 54

49.5

0.08 39 156 65

38 170 456

43.8 502.5

33 608

9 49

B.
Barley
Basalt
Babbit, white brass
Beech
Bell, metal
Birch .
Bismuth.
Bitumastic solution per gallon
Bituminous coal, broken, cubic foot averages

A ton, loose, .occupies 43-48 cubic feet.
Box wood
Brick, best pressed
Brick, cominon hard .
Brick, soft inferior
Brickwork, pressed brick
Brickwork, ordinary.
Brass, common
Brass, wire.
Bronze

62.5 150 125 100 140

112 525-530

533 544

.

POUNDS.

NAME OF SUBSTANCES.

C.
Camphor
Cedar, American red
Cedar, white
Cement, hydraulic, ground, loose, American.
Cement, hydraulic, ground, loose, English, Portland
Cement and sand (3 to 1)
Cement, hydraulic, Louisville, bushel
Cement, hydraulic, Portland, bushel
Cement, Roman
Charcoal .
Cherry
Chalk
Chestnut
Clay
Clay, in lump, loose
Coral.
Cork
Copper
Coal, bituminous, solid
Coal, bituminous, broken, loose
Coal, bituminous, heaped bushel, loose
Coke, loose, of good coal
Coke, loose, heaped bushel
Cypress

62 30.8 23 56 90 130 62 96 100 183

42 183

41 119

6? 168

15.6 554

84

49 74 62 40 41

43

D.
Deals, Riga

E.
Earth, common loam, dry, loose .
Earth, common loam, dry, moderately rammed .
Ebony
Elder
Elm, English
Emery
Elm, Canada

76 95 79.4 43.4 35 251 45

F.

Felspar
Fir (see Red Pine, etc.)
Flagging
Flint
Freestone

168 31-41 168 164 153

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