Radio Aid Fixing

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This category explains how to navigate from one point to another using a fix. LOPs are discussed in relation to plotting a fix and how to develop multiple lines of position accurately. Fixes are discussed in detail, as well as the various aids that are used to plot them, such as radio aids, aircraft instruments, airborne equipment, ground equipment, flight computers, and transponders. The category explains the use of a NDB, VOR, TACAN, and how they are used in direct relation with the aircraft navigational instruments for plotting a fix. Fix-to-fix navigation is discussed using the MB-4 flight computer, as well as a detailed discussion on the different features of a transponder.

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Recommended Tools

Rotating Flight Navigation Plotter – Rotating azimuth eases flight planning with direct course readout. 8 scales to meet the needs of all VFR aeronautical charts; nautical on one side, statute on the flip. Nautical-statute conversion scale also included.

Slide-Rule-Style E6B Flight Computer. On the circular side, black is used for the rate arrow and units to be calculated; Red is used for weight and volume; Blue is used for distance, time and temperature scales. On the wind side, colors are used to identify wind variation: blue identifies west (or right wind correction angle) and red identifies east (or left wind correction angle). ASA’s color E6-B is made with solid aluminum construction and features the functionality pilots have relied on for decades.

Additional Navigation Tools and Resources

  • U. S. Air Almanac 2018 – The Air Almanac 2018 contains the astronomical data required for air celestial navigation, making it a necessary resource for all pilots and others attempting to chart routes based on celestial bodies. The Almanac also provides the Greenwich hour angle and declination of the Sun, Moon, and three navigational planets along with the Greenwich hour angle of Aries, all tabulated at 10-minute intervals.
  • Davis Instruments Sextant – Used for measuring the angular distances between objects and especially for taking altitudes in navigation.
  • Sight Reduction Tables For Air Navigation Pub. No. 249 – Vol 1.  – These tables were designed for air navigation where weight and space are at a premium, however, they are very popular with sailors too due to the fact that Vol. 1 offers a speedier way to compute stars.  Volumes two and three may also be helpful.