NAVY

MATHEMATICS & SCIENCE

(Ed. Note: This is the first in a series of four articles to appear in the "Crimson" as part of a national campaign to emphasize qualifications needed for specific ratings in the Navy.)

BOATSWAIN'S MATES

DUTIES: After Navy Training and Extended Service

Do all kinds of canvas work, and all kinds, of hoisting with block and tackle. Know the rules of the road, distress, and other urgent signals. Be familiar with all light and buoyage signals. He able to handle either power or sail boats and know how to make landings through surf. Understand the compass and how to lay out a course. Be able to make all necessary knots and splices with either rope or wire. Be able to overhaul and handle anchor chain and know the regulations for such overhaul and for mooring ships. Be able to steer a ship and to know the effects of rudder and currents on steering. Understand salvage operations and the basic principles of damage control.

EDUCATION: Desired as a Preliminary to Enlistment and Navy Training

Complete arithmetic, application of the principles of the right triangle, elements of physics as applied to Pulleys, Force and Motion, Pressure of liquids, and Magnetism. Physical geography in reference to weather and tides, Elements of Trigonometry, Algebra, Plane Geometry.

RELATED CIVIL JOBS: Rigger Foreman, Sailor, Hoist Operator

GUNNER'S MATES

DUTIES: After Navy Training and Extended Service

Take charge of a gun and a gun's crew, assemble and disassemble guns of large and small calibre; know all of the tools used in gunnery; know the standard markings for ammunition. How to hoist and handle ammunition, and all safety precautions involved in gunnery. Recognize all types of Navy Protechnics, and be able to make tests of smokeless power. Understand the principles of fire control, the principles of electricity involved, and how to handle Naval mines, depth charges, torpedoes, and to adjust recoil, counter--recoil, gas ejectors and firing mechanisms.

EDUCATION: Desired as a Preliminary to Enlistment and Navy Training Complete arithmetic, application of the principles of the triangle, elements of physics as applied to pulleys, hydraulics, force and motion, acceleration, elements of electricity, optics chemistry as applied generally to combustion spontaneous combustion and pyrotechnics; hand tool and lathe work. Algebra, plane geometry, trigonometry.

RELATED CIVIL JOBS: Gunsmith, Mechanic

TURRET CAPTAINS

DUTIES: After Navy Training and Extended Service

Take charge of a gun turret and a turret crew, assemble and disassemble guns of large and small calibre; know all of the tools used in gunnery; know the standard, markings for ammunition. Understand the details and operation of directorscopes, periscopes and range finders. How to hoist and handle ammunition and all safety precautions involved in gunnery. Recognize all types of Naval pyrotechnics, and be able to make tests of smokeless powder. Understand the principles of fire control, the principles of electricity involved, and how to handle and adjust recoll, counter-recoll, gas ejectors, and firing mechanisms.

EDUCATION: Desired as a Preliminary to Enlistment and Navy Training

Complete arithmetic, plane geometry, trigonometry, algebra, mechanics, application of the principles of the triangle, elements of physics as applied to pulleys, hydraulics, force and motion; acceleration, elements of electricity, optics, chemistry as applied generally to combustion, spontaneous combustion, and pyrotechnics; hand tool and lathe work.

RELATED CIVIL JOBS: Mechanic, Gunsmith

TORPEDOMEN

DUTIES: After Navy Training and Extended Service

Be able to lubricate, disassemble and make ready the torpedo. Know the names and be able to recognize the use of all special tools used with torpedoes. Be able to charge a torpedo and to handle war heads. Understand and be able to trace fuel, air, water and oil lines in torpedoes. Be able to balance a gyro and know the theory of the gyro. Be able to carry out all regulations in regard to care, repair and tests of torpedo and torpedo mechanisms. Know the application of Ohm's law, Kirzchoff's law and other principles of electricity. Understand Navy pyrotechnics, principles of mine laying and depth charge dropping. Prepare torpedoes for firing and know the principles of fire control.

EDUCATION: Desired as a Preliminary to Enlistment and Navy Training

Complete arithmetic, trigonometry, algebra, plane and solid geometry, physics with emphasis on force and motion, heat pressure on liquids, hydraulics and electricity, chemistry with emphasis on combustion, spontaneous combustion, pyrotechnics and hand tool and lathe work.

RELATED CIVIL JOBS: Mechanic, Gunsmith

QUARTERMASTERS

DUTIES: After Navy Training and Extended Service

Steer the ship from its various steering stations, take soundings with lead lines, sounding machine, and rathemeter, use a polars, and navigation rangeunder, obtain and plot bearings. Operate signals control apparatus and make emergency signals from the bridge, operate searchlights, use the anemometer, tide and current tables and use and correct sailing charts and sailing directions. Take care of the chronometer, identify stars, take sun and star sights and determine ship's position. Use dead reckoning radio bearings and soundings as navigational aids, and interpret weather signals. Send and receive international Code by blinker, searchlight and semaphore, and identify all Navy signal flags and pennants. Know the international and local inland rules of the road, and the rules governing the display of the American and other flags.

EDUCATION: Desired as a Preliminary to Enlistment and Navy Training

Complete arithmetic, algebra elements of plane geometry, elements of trigonometry, elements of trigonometry, elements of spherical trigonometry, physics with reference to light, sound, optics and electricity, physical geography with reference to weather and tides; spelling and English.

RELATED CIVIL JOBS: Ship Pilot, Navigator, Hydrographer