The _Narragansett_, which is illustrated on Plate XXX., facing this page, has a length between perpendiculars of 512 ft. and overall of 531 ft.; the beam is 63 ft. 3 in., and the depth, moulded, 42 ft. The deadweight carrying capacity on a draught of 27 ft. is 12,000 tons. The engines are of the triple-expansion type. Interest in the machinery is associated principally with that fitted for the pumping of the oil cargo. There are two pump-rooms, one located conveniently for the oil in the eight compartments forward of the machinery space; the other in a corresponding situation for the same number of tanks abaft the propelling engines. The 10,500 tons of cargo can be loaded or discharged in less than twelve hours. While primarily for the Atlantic trade, the vessel was designed to undertake, if required, the much longer voyage of the Eastern service.
[Illustration: Plate XXX. THE LARGEST OIL-CARRYING STEAMER AFLOAT, THE "NARRAGANSETT."]
Because of the uniformly good results with ordinary coal, we give the details as received from the superintending engineer of the owners:--
TABLE VII.--RECORDS OF COAL CONSUMPTION OF STEAMSHIP "NARRAGANSETT."
---------------------------------------------------------------------- Voyage No. +------------------------------------------------------------ | Coal, Indicated Horse-Power per Hour. | +----------------------------------------------------- | | Total Coal on Voyage. | | +---------------------------------------------- | | | Coal for Boilers only. | | | +--------------------------------------- | | | | Sea Miles on Voyage. | | | | +------------------------------ | | | | | Cargo Carried. | | | | | +--------------------- | | | | | | Average Speed. | | | | | | +------------- | | | | | | | Horse-Power | | | | | | | On Voyage. ---------+------+------+------+--------+--------+-------+------------- | lb. | tons | tons | miles | tons | knots | I.H.P. ---------+------+------+------+--------+--------+-------+------------- 15 | 1.60 | 918 | 822 | 3,447 | 10,298 | 10.85 | 3,713 | 1.58 | | | | | | 3,900 16 | 1.59 | 923 | 834 | 3,403 | 10,289 | 10.80 | 3,951 | 1.64 | | | | | | 3,775 | 1.63 | | | | | | 3,668 17 | 1.50 | 924 | 836 | 3,469 | 10,499 | 10.40 | 3,949 | 1.53 | | | | | | 3,796 18 | 1.50 | 847 | 775 | 3,441 | 10,563 | 11.10 | 3,937 | 1.50 | | | | | | 3,720 19 | 1.44 | 837 | 760 | 3,423 | 10,570 | 10.85 | 3,909 | 1.43 | | | | | | 3,813 20 | 1.50 | 780 | 707 | 3,312 | 10,641 | 11.50 | 4,107 | 1.32 | | | | | | 3,817 21 | 1.56 | 846 | 766 | 3,330 | 10,651 | 10.60 | 3,909 | 1.44 | | | | | | 3,870 | 1.46 | | | | | | 3,746 ---------+------+------+------+--------+--------+-------+------------- Totals | | 6075 | 5500 | 23,825 | 73,511 | | Averages | 1.51 | 868 | 786 | 3,404 | 10,501 | 10.87 | 3,848 ---------+------+------+------+--------+--------+-------+-------------