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Isherwood System of Construction The First of a Series of Articles Describing in Detail the Construction of a Small Steamer of This Type Specifications for Steel Steamship. General Description. To be a single deck bulk freight steamer. Top gallant forecastle forward with deck laid flush, steel texas and pilot house on same. Steel deck house aft containing din- ing rooms, galley and crew's quarters. Accommodation for such part of crew as are not housed in after deck house to be in forecastle, boiler house or between decks aft. Four cargo hatches spaced 24 ft. centers, with bulb angle coamings, wooden covers and patent hatch fast- eners. el Water bottom to be 36 in. deep at center, with 3 in. of a camber and Robert Curr begins in this issue a series of articles on a vessel, 203 ft. long, 40 ft. beam and 18 ft. deep of the Isherwood type, describing the method of computing the calculations necessary in design- ing the ship as well as showing how to order materials and how to build the vessel. Estimating the cost of labor and materials will also be shown in these articles. Every problem will be discussed, even to the shipbuilder's point of view on the unsinkable ship. Not a section will be overlooked and a reason will be given for the location of everything in the ship. This ship is of such convenient size that it will be comparatively easy for those interested in shipbuilding to grasp and master all the problems presented. HATCH Coamencs Buca ANGLE D» 27.8% o. eyes ROR B&ck Phare V2. By Robert Curr extending up the bilges for 5 ft. tapering from 4 ft. at the tank top to 12 in. at. the top. on ship sige This side tank to extend from the coal bunker bulkhead to fore peak bulkhead. The water bottom to ex- tend from forepeak bulkhead to stuf- fing box bulkhead and divided by center keelson and solid floors all water-tight. Transverses to be spaced 6 ft. and webs 12 ft. throughout. : Triple-expansion engines placed aft and two Scotch boilers on tank top with fire room before them. Coal bunkers at fore-end of stoke- hold, with 100 tons capacity. . To be built on the Isherwood sys- tem, with one intercostal longitudinal SIN CER LAT e, 23 C we ATOWES SHeeRr 22%" Ar HATS HEE To 18° AT ENDS. \ ae aes TRANSVERSES Se 127 aU areae TeP ANGhES 3>3%7: Dic Bortom « Se 9: 8". --MiIpDsa1P Secrion --_ LENGTH OVERALL Dias cs "BER PP ee I9)= 9 Brenary MeL.oebd "o-oo Oarrn (8-0 TRANSVERSES Cg 4 " e . LONGIPUO/N AL FRAMING PER SECTiow Gx 3-77 . ¢ tp . GFEEP IN BoT Tom MhD 12-0 oW S/DE. TRANSVERSES Bor a/2Q- FACEANGLES I> 3x 2: 3° s Cups To SHELL Su Om 12-S.- CENTER KEGLSON 30'S, DBA. Bor Tow ANGLES . 4 37 WATER BOTTOM SFr. DGEP EXTENDING UPSIDE &S PER Sae770w. ; . ; o . ae ry 4 PLATING ONTOR IS UPSIDE /2, " n * uel BS JToR ANGELES Se CENTER KEELSON To BEWATERTTUG IIT. Sie 7-2, ANGLES Conn ECT ING TERNS eae VERSES To CENTER hezel Saw Px So /as. ST Srrak e'7s Te (SAT Enos. Hf STRAKE 7 NERS 3x 307: oe To 1S AT ENOS, KEEL PLATING ( B= 274° B 3revke 174° Te [6° AT ENDS. DSTRAKE 194° SrRA KE 174" . ie Te /S*AT ENBS Te/S"°AFExHAS. o STRAKE os: Te. (SA PENDS. E 8TRAKE 'T5" Te (6° Ar ENXNOS,