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The subject matter of this training manual is prepared for regular navy and naval reserve personnel. Operations of gyrocompasses and magnetic and magnesyn compasses are discussed with a background of error determination, compass adjustments, and degaussing applications. Navigation techniques are analyzed in terms of piloting, dead reckoning, determination of celestial lines of position, and radar, loran, consol, decca, and omega systems. To train the reader as an assistant to either a navigator or an officer of the deck (OOD) or a junior officer of the deck (JOOD), further explanation is made of ship handling, weather maneuvering, and OOD, JOOD, and navigator duties. Information on rules of the road, publications for navigation use, rating structures, and administration of records and reports is also provided. Besides illustrations for explanation purposes, an edited reprint of the reverse side of the June 1966 pilot chart of the North Atlantic is included in the appendix. (CC)

Fundamentals of major electronic equipments on board ships are presented in this text prepared for naval officers in general. Basic radio principles are discussed in connection with various types of transmitters, receivers, antennas, couplers, transfer panels, remote-control units, frequency standard equipments, teletypewriters, and facsimile installations. Theoretical and practical analyses are made of radar and sonar equipments to show their capabilities and limitations. On the subject of electronic navigation, loran, shoran, omega, tacan, and satellite and ships' inertial navigation systems are presented. Also included are descriptions of digital computers, gun and missile weapon systems, direction finders, closed-circuit television sets, electronic countermeasures, communication console equipments, underwater telephones, intrared and meteorological setups, carrier control approach systems, radiac instruments, and target control installations. Illustrations for explanation purposes and a glossary of general terms are included. (CC)

This is the fifth in a series on shortened versions of the Avionics Fundamentals and Aviation Electronics Technician R (Radar) Courses. The first four studies indicated that the initial revisions of the courses led to substantial savings in training time, but that the graduates from the revised courses were slightly inferior to graduates from the original courses on several criteria. It was decided that shortened versions of both courses should be implemented on an operational basis, but that these courses should incorporate certain changes that had been suggested by experience with the first revisions. These changes led to courses that were not quite as short as those produced in the first revision. It was found that students in the 8.5 week version of the Aviation Electronics Technician R (Radar) course did just as well as students in the original 10.8 week version of the course. Students in the 16 week version of the Avionics Fundamentals course were found to be slightly inferior to students in the original 19 week version. (authors/ly)

Discusses the Doppler effect as it applies to different situations, such as a stationary source of sound with the observer moving, a stationary observer, and the sound source and observer both moving. Police radar, satellite surveillance radar, radar astronomy, and the Doppler navigator, are discussed as applications of Doppler shift. (JR)