. The railroad and engineering journal . reordered or under contract. The Forbin is building at theRochefort navy-yard and the Surcouf at the navy-yard atCherbourg ; the engines for both are to be built by theSociiti- de la Loire. The Socirtr Transatlantique willbuild both ship and engines of the Coet/ogon at Brest, less draft, and 30 tons greater displacement-—varianceshardly perceptible. The dimensions of the Forbin, the typical ship of thisclass, are as follows : Length between perpendiculars 95 oo melcrs. Greatest breadth .9-30 meters. Depth of hold midships meters. JJraft aft me
. The railroad and engineering journal . reordered or under contract. The Forbin is building at theRochefort navy-yard and the Surcouf at the navy-yard atCherbourg ; the engines for both are to be built by theSociiti- de la Loire. The Socirtr Transatlantique willbuild both ship and engines of the Coet/ogon at Brest, less draft, and 30 tons greater displacement-—varianceshardly perceptible. The dimensions of the Forbin, the typical ship of thisclass, are as follows : Length between perpendiculars 95 oo melcrs. Greatest breadth .9-30 meters. Depth of hold midships meters. JJraft aft meters. Draft mean meters. Difference in draft, aft and forward meters. Immersed cross-section 31 27 sq. meters. Total displacement 1,848 tons. An armored deck 4 cm. thick extends the whole lengthof the ship, with a strong armored house or casemate overthe engine and boiler rooms, protecting the vital parts ofthe vessel. The Jorbin will have two independent, direct-actingcompound engines, and six cylindrical boilers, each with. while for the other three—the Froude, the Lalande andthe Costnao- contracts have been let ; for the ships to theSocit^tt- de la Gironde at Bordeaux, and for the engines tothe Creusot Works. These three will differ very slightlyfrom the others, having meter more beam, meter two furnaces ; the boilers are arranged in two groups ofthree each. These engines can work up to 6,000 with forceddraft, and running at 140 revolutions per minute, it is ex-pected that they will drive the ship at the rate of knots. Vol. LXm. No. 5.] ENGINEERING JOURNAL. 2^5 With a full supply of coal, and at a speed of lo miles anhour, the cruising range of this ship is 2,400 knots. The armament will consist of two 14 cm. (5{r-in.) cannon,mounted on pivot carriages in the casemate forward ; three47-mm. () rapid-fire cannon, two on the forecastleand one aft, and four revolving cannons in broadside insmall turrets. These third-class cruisers will b
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectrailroa, bookyear1887
