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RULES FOR. THE CONSTRUCTION OF STEEL VESSELS. 7. For this type of vessel, a maximum load line should be submitted for approval of the Committee. 8. All frames must be carried up to the awning deck stringer plate or to the lower part of a curved turtle back. g. All reverse frames must be carried up to the top of the second deck stringer plate angles, and alternate reverse frames to extend to the upper or awning deck stringer plate, in way of all erections on the upper or awning deck. to. Plans must be submitted to and approved by the Committee, when deck erections are entertained, other than those required for the navigation of the vessel. 11. For awning deck side plating, a reduction of 35 per cent. will be allowed from that given in Table 1 for topside plating, but in no case must this plating be less than eleven pounds, no reduction from the midship thickness will be allowed at ends. For riveting, see Sections 57, 58, 59, and 60. 12. Beams for awning decks to be of dimensions given in Table 6, and in all cases to be efficiently riveted to the frame, to the satisfaction of the Surveyor. For the spacing of beams, see Sec. 25. 13. The awning deck sheerstrake to be 35 per cent. thicker than the side plating next below it. 14. The width of the stringers to equal that given in Table 9 for third deck stringers, and their thickness to equal that given for awning deck sheer- strakes. 15. Awning deck ties to be the same as given in Table g for upper deck ties. 16. Hatchways in awning decks to be not more than one-third the vessels beam in width or ro feet in length. When the length exceeds ro feet, proper stanchions must be fitted at the hatch corners. 17. Awning deck stringer angles to be as given in Table g for lower deck stringer angles. 18. Where wood decks are fitted instead of steel, a reduction of one- fourth from the thickness of second deck planking will be allowed for awning decks, but the thickness in no case to be less than 2% inches. a) SHADE DECK. SECTION 11. 1. A shade deck is a light continuous, superstructure erected above the weather deck, with open sides the entire length or closed at the forward and after ends. It is unimportant in its strengthening value, and therefore not con- sidered in the rules and tables of the Register Plans submitted, for this super- structure will be carefully considered by the Classification Committee. RAISED FORECASTLES. SECTION 12. 1. For dimensions of side plating, stringers, stringer angles, and tie plates for raised forecastle, see Table 11. 2. The frames in all cases, and reverse frames on alternate frames, where angle frames are used, are to extend to the forecastle deck stringer plate. When the topside strake of side plating is of a rounded form, the frames may end at the lower part of the curve, and the beams turned down and overlap the frame sufficient to form a strong connection, and properly riveted together. 3. The beams to be of dimensions given in Table 6 for forecastles, and are to be fitted to alternate frames. They must be efficiently supported by pillar stanchions, and entirely plated over or covered with wood. The deck planking in no case to be less than 2% inches thick. See Table 9. 4. A continuous stringer angle of the size required for upper deck stringer angles must be fitted to the inner edge of the frames and strongly connected thereto by reverse angle lugs riveted to frame. This stringer should be located midway between the two decks, and con- nected at the stem by a suitable hook plate, the weight of which should be equal to that of the forecastle stringer. 5. If the forecastle deck is of the turtle back form, the gunwale or curved plate may be the thickness required for poop and forecastle stringer plates, and must be fitted in a manner satisfactory to the surveyor. 6. For riveting, see Sections 57 to 60.