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United States Collier Jupiter Launch of the First Electrically-Driven Collier at the Mare Island Navy Yard -- Description of Hull The United States collier Jupiter, building for the navy department at the Mare Island navy yard, was launched on Saturday, Aug. 24. She is the first electrically-driven sea-go- ing vessel to be built for the navy department and the description of her electric drive was published in the August number of the Review. The Jupiter is of the following general dimensions: Length of hull, 542 ft. Length between perpendiculars, 520 ft. Breadth, 65 ft. Depth of hold; 36 it. 9. in. Mean draught, 27 ft. 8 in. Displacement, 19,132 tons. Bunker capacity, 2,343 tons. Cargo capacity for coal, 10,500 tons. Designed speed, 14 knots. ° POOP UPPER. DECK LOWER DECK ~ ~ OFFICERS QUARTERS The construction of the collier was authorized in the naval act passed May 13, 1908. The cost was limited to $900,000. Estimates showed that the collier could not be built for less than $1,200,000, which sum was auth- orized to be expended by congress on March 4, 1911. The keel of the Jupiter was laid on Oct. 16 last, and the work of construction has proceeded _ rapidly since. She is a practical duplicate of the Cyclops as far as hull equip- ment: goes. The Jupiter is of the single-deck type with forecastle, bridge and poop with double-bottom ballast tanks end of oil stowage proper extending from after to after QUARTERS AT hens FIRE BOILER] ROOM GALLEYS, RTC. end of engine room and upper wing _ballast tanks, formed in a triangular space between the deck and side out- board. of the cargo hatches. - Her trimming tanks are installed in both forward and after peaks. The water ballast arrangements are such that the vessel may be maintained with not more than 1 ft. trim by head when full cargo on board and bunk- ers empty and not more than 2 ft. by stern with full bunkers and full car- go coal. Suitable space is provided outside of the regular cargo holds for the carrying of about 1,000 tons fuel oil in bulk. In addition, one cargo hold is so riveted and caulked and fitted with bulkhead and coffer- COAL BOTTOM OF TOP. SIDE TANK COAL CARGO HOLD f RESERVE FEED WATER TANK ------ ---->t RESERVE FEED WATER € KEEL NON WATER TIG | EXTENT OF INNER + 159 -- Or ool. io _Vvaat tt a es "roses | WORK SHOP ap Tes : = ee Go O COAL O90. 09 0° am 7 ST eet HATCH [Avent Ou} o ' ° TT oo 4 ae VA Sheol Eee a : - | (ricer eS Sy heme a ill 7 | i ees RT saat © C . CbAUI HATCH ++ carco [LS f = REW BERTH E Tee HATCH + i STEERING GEAR ROOM ~ ° LOCKERS 3 3 1R+6"X38'| me 13 3 4 oO 10 HOSPITAL ---- |] oo E ENGINE COAL_BUNKER a = Ee} HATCH OLE ey ! Peed) H 2 et er gull iy | es) IT} vent o = ae Oo fy Oo 0.0 ae Qa" ° oO Sl rant 18" MANHOLE 11a ee é PASSAGE "22 va UPPER DECK ; fae PR i ee ar INBOARD PROFILE AND UPPER