Page 45: of Maritime Reporter Magazine (January 1969)

Foster Wheeler sells two more reheat boilers to Island Navigation Just like those being installed at Sasebo. The two reheat boilers make a total of four that Island Navigation Corp. has purchased from Foster Wheeler for steam reheat-powered tankers. All of these tankers will be built at Sasebo. Each is rated at 175,000 DWT and 30,000 shp. The first will go to sea in October, 1968. The second in the spring of 1969. The two new units are for ships to be delivered late in '69 or early '70. Each of these vessels will save its operators as much as $175,000 a year over a diesel system. And up to $45,000 over a conventional system. (Guaranteed fuel rate is less than 0.4 Ib/shp hour when FW reheat boiler is used with GE MST-14 propulsion system or equivalent.) This is the first modern boiler to offer shipowners a practical, fail-safe reheat cycle. During maneuvering or in-port op-erations, when no steam is in the reheater, completely automatic shut-off and by-pass dampers direct the flow of hot gases away from the re-heat zone to a by-pass zone cooled by bare tube economizers. Simultaneously, cooling dampers, operating on the same shaft as the shut-off dampers, direct air from the burner wind-box through the re-heater. This protects the reheater from thermal shock when steam flow is resumed. Further fail-safe protection comes from the reheater's strategic location in a low gas-temperature zone. Even without by-passing, the boiler can operate for extended periods with-out reheater tube failure. Fan speed changes are not required during ahead-astern operation. If you'd like to know more about how our new reheat boiler can in-crease efficiency and decrease op-erating costs of your propulsion sys-tem, talk to Foster Wheeler. We've got a lot of engineering worth talking about. Foster Wheeler Corporation, 666 Fifth Avenue, N.Y., N.Y. 10019. FOSTER © WHEELER January 1, 1969 47