(5) He shall not be required to keep a watch unless, in the opinion of the captain, it becomes necessary.

Watch duty.

Duties of sub

659. (1) He shall assign to the junior engineer officers their routine duties in connection with the care, preservation, and repair of ordinates. machinery, apportioning among them the entire machinery of the vessel for which he is responsible, so that each officer shall have direct charge of some particular part of the machinery. Such division of the duties of the junior engineer officers shall not, however, relieve the engineer officer actually on duty or watch of his responsibility for the proper performance of the detailed work of the day.

(2) When naval cadets are assigned to the engineer force, he shall see that they acquire a practical knowledge of their duties, and, as soon as, in his opinion, they are competent to take charge of a watch under steam, by day or by night, or with a day's duty, he shall so report to the captain.

(3) He shall cause the engineer officers to instruct the petty officers and men in their duties, and to give particular attention to the training of the firemen in the management of fires, both with natural and forced draft.

660. (1) He shall, in the disposition and stowage of stores, and in Precautions the use of lights, take every possible precaution against fire.

(2) He shall see that the apparatus in his charge for extinguishing fire is always kept ready for use.

(3) He shall require the temperature of the coal bunkers to be taken every watch when practicable and recorded in the steam log. Should there be any indication of spontaneous combustion, it shall at once be reported to the officer of the deck.

against fire.

661. (1) He shall be responsible at all times, whether under way Responsible for or at anchor, for the good order and cleanliness of the engineer good order. department, and shall see that it is at no time left without a suffi

cient watch under the charge of a petty officer.

(2) Each day before 10 a. m. he shall examine the engine and fire Examinations, rooms, coal bunkers, storerooms, and other parts of his department, inspections, and and see that they are ready for inspection, and that the work of the reports. day is progressing in a satisfactory manner.

662. (1) He shall frequently examine the coal bunkers, with the view of ascertaining the quantity of coal actually on hand, as compared with the amount called for by the coal account. Should he discover any material excess or deficiency, he shall report it at once to the captain.

(2) Before coaling, he shall ascertain the condition of the bunkers and of all water-tight openings; and shall satisfy himself that no unauthorized materials are stowed in the bunkers.

(3) After coaling he shall report to the captain what bunkers are filled, whether the coaling ports and scuttles have been so closed as to be water-tight, and what water-tight doors and hatches are closed.

663. He shall report to the captain at noon each day the amount of coal consumed for the preceding twenty-four hours, and the amount remaining on hand, and when under way under steam, the number of revolutions of each propeller for the past twenty-four hours and the average number per minute when in operation.

Coal bunkers.

Noon report.

664. (1) He shall report to the captain whenever a boiler is injured; Report inalso any accident or derangement to the motive engines or their juries. dependencies.

Suggestions.

Shall not dis

(2) Should he consider it necessary at any time to reduce the load on the boiler safety valves, he shall so report to the captain. Any change made in the load shall be recorded in the steam log.

(3) Whenever he deems it necessary it shall be his duty to make written suggestions or reports to the captain concerning the motive machinery and its dependencies, or other fittings of the ship for which he is responsible.

(4) Should he receive an order the execution of which would, in his opinion, injure the machinery or boilers, or tend to extravagance in the consumption of fuel, he shall report his opinion to the captain and suggest a remedy.

665. He shall not at any time, for the purpose of repairs, disable able machinery. the machinery even temporarily except by permission of the commanding officer.

Lighting and hauling fires.

When to turn

the engines.

To report any

666. He shall not permit fires to be lighted or hauled, except in cases of emergency, without orders from the commanding officer. 667. He shall not permit the main engines to be turned except in obedience to a signal from, or by permission of, the officer of the deck.

668. He shall be careful that all duty under his supervision is infractions of dis- performed in a diligent, faithful, zealous, and orderly manner. He shall report any officer or man who fails in this respect, or who, while under him, commits any breach of discipline.

cipline.

Reporting work 669. (1) He shall, whenever the vessel arrives in port, report to necessary on ar- the captain in writing all work needed for the proper care and preserriving in port. vation of the machinery and boilers, stating separately the work that can be postponed, if necessary, and that which can not without injury be delayed. He shall note opposite each item whether the work can, or can not, be done by the force on board, together with an estimate of the time required.

Steam log.

(2) Should no repairs to the machinery or boilers be needed, he shall report that fact to the captain in writing.

(3) The date and nature of the report shall, in every case, be entered upon the steam log.

670. (1) He shall have charge of the preparation and care of the steam log, which shall be begun upon the day the ship is placed in commission.

(2) He shall keep the steam log in accordance with the instructions and directions as printed therein.

(3) He shall cause to be entered in the steam log a record of all injuries to any of the engineer force while within the engineer department.

(4) He shall, as soon after noon each day as practicable, present the steam log, complete to date, to the captain for his inspection. (5) He shall furnish to the navigator daily the data required for the ship's log.

(6) Entries in the steam log pertaining to matters and events outside of the engine and fire rooms, such as wind, weather, speed, state of the sea, sail carried, course steered, draft of water, etc., shall be copied from the ship's log, when recorded there.

(7) He shall prepare and, at the end of each quarter, submit to the captain for transmission to the Navy Department a smooth copy of the steam log, which must be signed and approved in the same manner as the original.

671. He shall record, in a book kept for the purpose, the location of all spare parts of machinery; a complete statement of everything that transpires in his department, which may be of use to his successor in familiarizing himself with the machinery of the vessel and its history; and, as soon as ascertained, the most efficient rates of expansion in the different cylinders for various speeds, noting the page or pages of the steam log from which the data was obtained. 672. He shall forward all official reports, communications, and returns, through the captain.

Remark book.

Transmitting official papers.

673. He shall keep the executive officer informed of the sobriety To inform exand obedience of the enlisted men of the engineer force, and of their proficiency in their respective ratings.

ecutive officer concerning conduct of men.

Absence or dis

674. During the temporary absence or disability of the senior engineer officer, the engineer officer next in rank remaining on board ability. shall perform the duties of the senior in addition to his own. Should, however, the absence or disability of the senior extend for a considerable period, the captain may, at his discretion, relieve the engineer officer next in rank of his duties as a junior.

SECTION 2.-OTHER ENGINEER OFFICERS.

675. (1) The duty of other engineer officers shall be arranged by the captain in accordance with the number on board fit for duty and the requirements of the ship. Whenever fires are lighted under the main boilers for steaming purposes, they shall perform duty by watches; under other circumstances they may be permitted to perform day's duty.

(2) When performing duty by watches, the engineer officer on duty shall exercise a close supervision over the warrant or other machinists in charge of the engine-room watch and over all others engaged in running or attendance on the engines and other ma chinery, the boilers and their appurtenances. He shall be vigilant throughout his watch, and shall remain in the vicinity of his sphere of duty, and be in readiness to respond promptly to any call. He shall be in the engine room at all times when it is probable that it will be necessary to work the engines to signals, and also when the watches are being changed.

(3) When on day's duty he shall exercise a general supervision over the engineer's department and all of the force employed therein; and, when important work is being executed, shall be diligent in attendance and supervision.

676. (1) When performing duty by watches, the engineer officers shall in no case perform their duty in more than five reliefs. Ordinarily the duration of a watch shall be four hours; but when the number of engineer officers, exclusive of the senior engineer, is reduced to three. the watches may be of not more than eight hours, and when reduced to two, of not more than twelve hours' duration. (2) When the number of engineer officers, including the senior engineer, is reduced to two, these two officers shall perform duty by watches whenever the main engines are running. When the engines are not running, they may, with the permission of the captain, do day's duty.

677. (1) When doing day's duty, the engineer officers shall in no case perform this duty in more than four reliefs; and the length of a tour of duty shall be not more than twenty-four hours.

General duty.

Watch duty.

Day's duty.

(2) When there are two or more engineer officers, exclusive of the senior engineer, the former shall take the day's duty in turn, subject to the limitation of paragraph 1 of this article.

(3) When the number of engineer officers, including the senior engineer, is reduced to two, these two officers shall take the day's duty in turn.

Engineer offi- 678. (1) The engineer officer about to take charge of the watch cer of the watch. duty shall not relieve his predecessor until he has satisfied himself that the condition of the machinery is as turned over to him, and he will require the officers and petty officers on watch to report to him the condition of the men and parts of the department under their control.

Engineer offi

day's duty.

(2) The engineer officer of the watch shall use every effort to maintain the motive machinery and its dependencies in an efficient condition, and to prevent any accident or injury to the same.

(3) He shall cause to be executed promptly any order received from the deck by signal or otherwise.

(4) He shall report at once to the officer of the deck any derangement or probable derangement of the machinery which may affect the maneuvering powers of the ship. He shall not permit the speed of the engines to be altered without orders from the deck, except through necessity.

(5) He shall notify the senior engineer officer as soon as he discovers anything going wrong with the machinery or boilers.

(6) He shall cause to be faithfully executed and observed all instructions and directions received from the senior engineer officer in reference to the use, care, and preservation of the motive machinery, and in other professional duties with which the senior engineer officer is charged by these regulations.

(7) He shall at all times carry out any instructions he may receive from proper authority.

(8) He shall preserve order among his subordinates in the engine and fire rooms, and place upon the report book the name of any man who is guilty of any infraction of discipline.

(9) He shall keep the steam log and make such entries as are required by the instructions contained therein.

(10) He shall, so far as is in his power, prevent any waste of coal, oil, or other stores.

(11) He shall not absent himself from the place of his duties unless regularly relieved.

(12) Reports to the officer of the deck and to the senior engineer officer shall, when possible, be made through voice tubes. When this can not be done, the reports shall be carried by some intelligent subordinate; in the case of important reports, both means shall be employed.

679. (1) The engineer officer having the day's duty shall be recer having the sponsible for all work being done in the engineer department and all engineering work being done by any of the engineer force. In the morning he shall see that the morning orders are properly executed. In the evening he shall inspect the department between 7 and 8 o'clock, and satisfy himself that all cocks and valves are closed or otherwise as ordered; that all unnecessary lights are out; that all water-tight doors and hatches that do not interfere with the work going on are properly closed; and that all precautions have been taken to guard against fire, leakage, or other accident; and he

shall report to the senior engineer officer, before 8 p. m., the condition of the department.

(2) He shall carry out the provisions of article 678, paragraphs 1, 5, 6, 7, 8, 9, 10, 12.

Orders, how

680. All orders regarding the management of the machinery or the men belonging to the engineer force shall, except in an emer- passed. gency, be given through the engineer officer on duty."

681. Engineer officers shall, before applying for leave to be absent Permission to from the ship, obtain from the senior engineer officer permission to leave the ship. do so. Should the senior engineer officer refuse such permission, he

shall report his reasons for so doing to the captain.