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22. Channel seam strap. 23. Rider plate. 24. Tank top plating. 25. Tank top margin plate. 26. Web frame bracket plates. 27. Watercourses. 28. Center keelson plate. 29. Hold stanchion braces. 30. Lower main deck ties, 31. Upper main deck ties. 32. Main deck face.angle 'clips. 33. Web frame brackets to main deck. 34. Main deck stringers. 35. Main deck stringer face angles. 36. Main deck stringer angles. 37. Main deck stringer intercostals, 38. Steel hold ceiling. 39. Bilge ceiling cement. 40. Fenders. 41. Hold stanchion clips. " 42. Side stringers. 43. Side stringers intercostals. 44. Side stringers intercostals. 45. Keel angles. 46. Keel liners. 47. Center keelson top angles, 48. Shifting board plates. 49. Shifting board bottom angles. 50. Shifting board top angles. 51. Outer spar deck stringer, _. 52. Inner spar deck stringer. 53. Spar deck stringer seam strap. 54. Spar deck plating. 55. Hatch coaming. 56. Spar deck stringer angle. 57. Spar deck intercostal. 58. Spar deck channel girder. . 599. Continuous girder bottom angle. -- 60. Continuous girder top angle. 61. Bilge bracket lightening hole. 62. Rider plate edge straps. A. Keel plate. B. B strake. C...-G, strake, : D. D. strake. E. E strake, F. Bilge strake. G. G strake. H.}..H strake. J.. J strake. K.. Sheer strake. One, the center keelson bracket, 2 chan- nel floor, 3 bilge bracket, 4 girder stiffen- ers, 17 intercostal clips, 20 girder angle clips, 21 girder stiffener pracket plates and 22 channel seam strap compose the bottom framing of the ship. The top- side framing is composed of 5 frame bracket, 6 channel frame, 7 main deck beam brackets, 8 spar deck beam bracket and side stringer clips' shown at main deck and side stringers, 11 web frame channels, 12, 13 and 26 brackets and side stringers, side stringer clips. _ The tank top is composed of 3 plates, the tank top rider 23, tank top plating 24 and margin 25... The margin plate is flanged to the shell on bilge strake F. The rider plate is connected to the Cee 'TAE MARINE. REVIEW tank top plating with edge strips, 61 fitted between tank top stiffeners which run across the tank similar to the seam straps. The side stringers are composed of continuous channel' 42, and _ inter- costals 43 and 44. The main deck stringers 34, stringer angles 36, face angles 35, beams 10, and channels ties 30 and 31 oe the main. deck. The hold stanchions are composed of I section, 14 fastened to tank top with clips 41, and braced with channels 29, The shifting boards run between the spar and main decks and stiffened with angles top and bottom, as shown by 48, 49 and 50. The bilge ceiling 38, is sade of steel plate and angle, and filled in with cement on top, as shown by 39. The fenders are composed of oak and angle iron, as shown by 40. The spar deck stringers 51 and 52 are composed of 2 plates and fastened to- gether with seam straps, 53. -- , The deck plating 54, runs across the - deck in one piece and connected to, -the' stringer plating. The channel girder under the spar deck is composed of intercosta: channel 57, and continuous channel 58. The hatch coamings 55, are*of the bulb angle sec- tion and welded at the corners. The spar deck beams are of the chan- nel. section and 'spaced' feur (4) feet apart. The stringer ane: 56, runs from fore- castle to stern and butt strapped to make it continuous. The shell plating is all lapped. on the seams. The butts also with the excep- tion of bilge strake F. and sheer strake K. which are double butt strapped. WORLD'S FASTEST VESSEL. The British torpedo destroyer Swift, which was launched late last year at the yard of: Cammell | Laird & Co., Birkenhead, Eng., underwent her 'speed trials in the Irish sea 're- cently, and it is understood that she achieved a speed of nearly 38 knois during certain portions of the ren, thus establishing her claim to be the fastest vessel afloat of her kind. She is one of the newest type of oceen- going torpedo destroyers and both in her dimensions and engine power is a considerable enlargement upon the Tribal class, which have a speed of 33 knots. The contract speed of the Swift is 36 knots. .Her principal di- mensions are: pendiculars, 345 ft.; breadth, 34 ft.; depth, 20 ft. 4 in.; with. a. displace- ment at her mean load draft of about - 1.800, Her armament consists of four 4-in. breech loading guns, two on the fore- Length between pe-:-: 23- castle .and two on the upper deck; and two 18-inch torpedo tubes on the upper deck. She is fitted with quad- ruple turbine machinery of the Par- sons type, made at Messrs. Cammell, | Laird & Co.'s works, Birkenhead. The turbines drive four shafts, there being one propeller on each shaft. The turbines are placed in two dis-. tinct engine rooms in. order to mini- mize the capacity of any one water-. tight compartment, and several novel- ties have been introduced in order to accommodate machinery of the large power. required in the comparat: ively small space at disposal. There is an. installation of 12 boilers of the ex-_ press straight tube type,. these being" arranged for the burning of oil fuel.. The boilers have been built by the firm at their Beaufort road works. GOOD PERFORMANCE BY BRIT-. -ISH SUBMARINES. A flotilla of 17 submarines has com- pleted an unparalleled journey from Dover up: the east coast of England for 394 miles under war conditions, each with a crew of 16: officers' and men. They remained under. water for the entire distance. except for their conning towers. These | submarines are a British development of the original Holland design, obtained. from the United States eight years ago. The capabilities of this type of submarines has been clearly demon- strated as they have been shown to be fit to go anywhere and do anything. The cruise occupied 40 hours.: © The flotilla in question belongs to newer the B and C classes, with a displace- ment, submerged, of 313 tons, and are fitted with two torpedo tubes. : A "great degree of habitability has been ~ obtained in these craft which cruise on the surface with gasoline engines, and, as this performance indicates, have an average of. 10. knots. for a very long -- period, an awash condition. When completely submerged they are propelled by electrical energy at a speed of about eight knots. in James F. Paige,. supervising con- structor of engines at the yard of the Fore River Ship- Building .Co., Quincy, Mass., has gone to Japan where he is to take charge of the installation of the great turbine en- gines built at Quincy for. the Japan- ese battleship Aki, of 20,000 tons, and the armored cruiser Tbuki. The tur- bines are. of the Curtis, type, with which the scout.cruiser Salem has just made a_ world's record.