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Fig. I. Engine Room Tanker E. T. Bedford—General Lighting Units Under Deck Above at Left and Right Correct Engine Room Lighting Will Save Operating Expense By Roger A. Lea and Richard G. Slauer S IN every other-~: field: of. in-. A dustry and commerce, light occupies an important place in the motorship engine room. Good lighting helps to make an efficient, smooth working, cheerful crew while poor lighting breeds mistakes, and slower and discontented workers. Conditions on shipboard vary radi- cally from those on land, and there- fore different problems are _ encoun- tered when a lighting system is in- stalled. Briefly enumerated, the fac- tors of most importance are: 1. every ship must be its own power plant, 2. there is a minimum of space, espe- cially headroom and 3. all fixtures and wiring must be watertight and specially protected. Because each ship must have its own power plant, the problem of good lighting is made simpler. The average auxiliary engine, whether used for lighting alone, or for both lighting and auxiliary power, can handle the difference in power de- This article was especially prepared fer Marine Review by Roger A. Lea, of the Artistic Lighting Equipment association, 420 Lexington avenue, New York City, and Richard G. Slauer, of the Edison Lamp Works, Harri- son, N. J. 22 mands. between a poor lighting load and a good lighting load. The addi- tional cost would therefore be only one or two cents per kilowatt-hour, (the cost of fuel, added depreciation, oil, etc.). Even if a slightly larger auxiliary is needed, the investment charges would raise the cost only a trifle. The ship owner thus has a big advantage over his brothers on Proper Ship Lighting Lighting of working spaces and crew’s quarters on every ship should be given careful considera- tion by a properly qualified per- son. It is too often handled in a casual manner in the original de- sign and the resulting inadequate and inefficient system continues as a serious handicap in the opera- tion of the vessel. At little or no greater cost, with a well planned layout and the correct determina- tion of the intensity of various units and the choice of the best type of fixtures and lamps, a truly efficient and satisfactory system may be evolved for any particular case. MARINE REVIEW—September, 1927 land, the manufacturer and_ store- keeper, who usually buy from a power company and pay at least six or seven cents per kilowatt hour. And do the results ‘justify this added expenditure for good lighting? Emphatically yes! First of all, good lighting means fewer accidents. <A man who'can see well is alert. Even if he is busy with something else, his mind will unconsciously warn him of impending danger. And an accident on shipboard is. more dan- gerous than on land. The average ship has not the required facilities to take care of an injured man. Neither can anyone be obtained to do his work until a port is reached. If the injury can be shown to be due to inadequate or faulty equipment ‘the owner would also be liable for compensation and the expense involved. In the second place, good lighting means quicker and more accurate work. Every ship must have artifi- cial lighting because of its con- struction and type of service. Nat- ural light can never reach for any distance into a ship’s engine room even in the case of freighter with