Know the number and characteristics of lights carried by small boats under way. Know the fog signals under way and at anchor, including interval between and the method of making signals. Know the whistle signals and rules of the road, steam vessels crossing. Know the characteristics and use of all lights employed by naval vessels. Know the proper phraseology to employ in writing up the quartermaster's notebook.
Know the personal flags of flag officers of the United States Navy, and the navies of the principal foreign powers. Know how to compute time of sunrise and sunset. Demonstrate a knowledge of the content of other publications of importance to the navigator. Demonstrate a knowledge of the symbols used on charts.
Know how to consult commonly used tables in the American Practical Navigator "Bowditch". Know the principles of, and the general construction of the gyro compass. Know the indications and the action to be taken in the event of storms common to North America northeaster, tropical hurricane, norther, Santa Ana.
Problems in dead reckoning, azimuths, and compass correction.
Radio aids to navigation. Demonstrate a full knowledge of dead reckoning, and the use of radio bearings and soundings as aids to determining the ship's position. Petersburg system of buoyage, and where in effect. Variations from the standard systems of buoyage in the United States and foreign ports. Operate searchlights in ship to which attached. How to distinguish a call from a signal in flag hoists.
The function of repeaters.
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The rules of visual responsibility. Governing flags, their meaning and uses. Communication terms as listed in Communication Instructions. The rules governing the display of the United States ensign.
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Be able to identify the personal flags of the United States Navy and navies of the principal maritime powers. Know how to communicate visually with a merchant ship at sea. Fog signals under way and at anchor, including interval between, and the method of making signals. Number and characteristics of lights carried by small boats under way, whistle signals, and rules of the road, steam vessels crossing.
Distress signals. Emergency signals visual and whistle. Signals to, lifeboats. Special signals to and from aircraft. Know how to take bearings, and how to determine if the ship is dragging. Know how to make any "Commander" or "Collective" call by flag hoist without referring to the visual call book.
Be familiar with the table of honors.
The information that is given to gyro electricians under way. The system of time zones and its application. How to determine the time of sunrise and sunset. Know the meaning of chart symbols. Note: A signalman, first class, is also eligible for advancement to chief quartermaster. See D Demonstrate familiarity with other aids for determining the ship's position including a full knowledge of dead reckoning and the use of radio bearings and soundings.
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Be able to use tide and current tables. This requirement may be waived by the Bureau of Naval Personnel or by the commanding officer in accordance with current instructions. In addition, to qualify as a rangefinder operator, under 1 A c ii , candidates must be under thirty 30 years of age and must have interpupillary distance of not less than 60 or greater than 70 millimeters.
Demonstrate thorough familiarity with the technique of night lookout scanning. Understand in general the construction of a rangefinder. Demonstrate ability to gas rangefinders or other optical equipment:.
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Be familiar with the plotting problem. Knowledge of the methods of solving simple algebraic equations. Understand the effects of inductive reactance and capacitive reactance in a circuit. Demonstrate ability to make simple sound and radar interpretations. This includes the shifting of frequencies within the time limit and degree of accuracy set as a standard within the fleet or force to which attached.
When specifically assigned, perform the adjustments listed above on Loran and Countermeasures equipment. When so assigned, possess similar knowledge of Loran and Countermeasures equipment. Navy Regulations, Communication Instructions, and current operating instructions.
Know the regulations regarding communications as prescribed for the safety of life at sea, and know how to communicate by radio with a merchant vessel at sea. Know how to interpret radio symbols. The text of two messages shall be composed of 5-letter groups, the letters random mixed, and one message shall be composed of random mixed numeral-letter code in groups of 5 characters. The text of three messages shall be composed of 5-letter groups, the letters random mixed, and one message shall be composed of random mixed numeral-letter code in groups of 5 characters.
The text of four messages shall be composed of 5-letter groups, the letters random mixed, and one message shall be composed of random mixed numeral-Ietter code in groups of 5 characters. A total of 5 errors incorrect or omitted characters will be permitted in transmitting in any complete test.
One complete rehearsal immediately preceding the official test is permissible. The messages used for the official test must differ from those used for the rehearsal, and must be unknown to the applicant before the test starts. All errors must be corrected. This includes the shifting of frequencies within the time limit and degree of accuracy set as standard within the fleet or force to which attached.
Be able to solve practical A. AND D. Have a thorough knowledge of the theory and use of the cathode ray oscilloscope. Demonstrate ability to maintain records reflecting electronic equipment histories. The highly technical qualifications for radio technicians, covering the broad field of electronic equipment, make it inadvisable to waive the school requirement for advancement to chief.
Must have had at least six 6 months' operating experience as a radar operator. General familiarity with visual communications and code radio. Knowledge of the use of radar in navigation and piloting. Note: All sonarmen, when rated or advanced in rating, must have normal aural acuity at least over the general frequency range of from to 3, cycles per second.
They must not be tone deaf as evidenced by demonstration of differentiation between several musical notes. Demonstrate ability to use bearing deviation indicator. Demonstrate familiarity with true and relative bearings and conversion of same. Demonstrate ability to recognize improper functioning of major components of sonar equipment.
Demonstrate a working knowledge of the use of the bathythermograph.
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Demonstrate complete familiarity with all applications of sonar equipment to navigation. Working knowledge of practical applications of water phenomena to sonar operations. Familiarity with radio communication procedure. Demonstrate ability to use simple radio procedure voice.
Be able to recognize improper functioning of major components of equipment. Demonstrate ability to use common types of cable testing equipment. Such knowledge should include conception of parallel and series resonance, and an understanding of the function of filters. Be able to read and understand the various types of draft marks used on naval vessels. Demonstrate ability to renew a stem, stern frame, and engine foundation in a small boat, or construct a cabinet or other furniture aboard ship.
Demonstrate ability to lay out sheet metal work and bend to shapes and containers, and manufacture a metal locker. Know the duties of a first lieutenant when the ship is in drydock and preparatory to flooding the dock. Know the kinds and types of piping used in various systems found on naval vessels. Demonstrate a knowledge of the safety precautions involved.
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