Page 15: of Maritime Reporter Magazine (December 1981)

maneuverability, propeller cavi- tation and oscillations, exhaust gas flow, and wind load. Equally exhaustive tests were made re- garding static and dynamic be- havior of the structural elements.

Noise, vibration, and ventilation tests were conducted with full- scale, mock-up cabins.

When the Europa was de- signed, special attention was paid to environmental protection, and as a result the ship satisfies all conceivable national and interna- tional requirements.

Wind tunnel tests were con- ducted so that passengers would not be exposed to exhaust gases on the open-air decks. This was achieved. The design and dimen- sions of the funnel keep away all exhaust gases.

Engine exhaust outlets: noise and dirt on open-air decks is min- imized by combining various sound-reduction units. Engine ex- haust outlets have separate noise- reducers. There are a total of 11 exhaust outlets: two for the main engines, five for the diesel gen- erators, one for the port emer- gency diesel, two for the auxil- iary boilers, and one for the gar- bage incinerator.

Exhaust gas outlets from the garbage incinerator: soot and odors from this unit are also nonexistent on the open decks.

The garbage incinerator is fitted with nine parallel cyclones which separate ash on the gravity prin- ciple.

Three sewage treatment plants are provided for waste disposal.

The following installations are provided to prevent oil pollution: two sloptanks for the storage and interception of bilge water; two oil extraction units for the sep- aration of bilge water. The de- oiled water conforms to the latest

IMCO regulations for coastal wa- ters (oil residue of less than 15 ppm ; and water pumped over- board by the extraction units is continually monitored. If per- mitted levels are exceeded, the in- stallations automatically stop the discharge of oil-polluted water.

Oil residues are burnt in the gar- bage incinerator.

Garbage is collected by means of a shaft running underneath all the accommodation decks.

Facilities are also available aboard the Europa for the dis- posal of noncombustible solid ob- jects such as bottles and cans.

Award RCA $339 Million

In Contracts For Navy's

Aegis Weapon Systems

RCA Missile and Surface Ra- dar, Moorestown, N.J., has re- ceived $339 million in contracts for Aegis weapon systems for three additional U.S. Navy ships in the Aegis class of guided mis- sile cruisers.

The awards cover production and integration effort for the third and fourth cruisers in the series, CG 49 and CG 50. Delivery of the weapon systems for these ships is scheduled for 1983-84.

The awards also encompass long-lead production items for CG 51, the fifth cruiser in the class.

The Aegis class's first ship,

Ticonderoga, was christened

May 16, 1981, by First Lady

Nancy Reagan. Ticonderoga will be commissioned and join the fleet in early 1983.

The Aegis weapon system, which is the nucleus of the cruis- er's combat system, was devel- oped by RCA. Radar-based and computer-controlled, the system is capable of automatically de- tecting, tracking, and engaging multiple missile, aircraft, and surface threats simultaneously.

RCA produces AN/SPY-1A ra- dar systems for the Aegis weap- on systems which are assembled and tested — less ordnance — at

RCA's Moorestown plant prior to delivery to Ingalls Shipbuilding.

RCA is also responsible for en- gineering and integrating the complete ship combat system.

Aegis cruisers form a new class of gas turbine-powered ships based on the proven hull and propulsion system designs of the

Spruance-class destroyers. The

Navy plans to build at least 18 of the Aegis cruisers during the 1980s. The $338.9-million awards include previously announced funding of $109.7 million for long-lead production for the third and fourth systems.

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