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2. Points of the compass - Wikipedia

   en.wikipedia.org/wiki/Points_of_the_compass

   32-point compass rose. The points of the compass are a set of horizontal, radially arrayed compass directions (or azimuths) used in navigation and cartography.A compass rose is primarily composed of four cardinal directions—north, east, south, and west—each separated by 90 degrees, and secondarily divided by four ordinal (intercardinal) directions—northeast, southeast, southwest, and ...

3. Heading (navigation) - Wikipedia

   en.wikipedia.org/wiki/Heading_(navigation)

   4 - Compass north, including a two-part error; the magnetic variation (6) and the ship's own magnetic field (5) 5 - Magnetic deviation, caused by vessel's magnetic field. 6 - Magnetic variation, caused by variations in Earth's magnetic field. 7 - Compass heading or compass course, before correction for magnetic deviation or magnetic variation.

4. Aircraft compass turns - Wikipedia

   en.wikipedia.org/wiki/Aircraft_compass_turns

   Compass turns are typically performed in simulated or actual failures of the directional gyro or other navigational instruments. A magnetic compass is a simple instrument when the compass is not moving and is on the earth. A magnetic compass installed in an aircraft is subject to compass turning errors during flight.

5. Aircraft principal axes - Wikipedia

   en.wikipedia.org/wiki/Aircraft_principal_axes

   The position of all three axes, with the right-hand rule for describing the angle of its rotations. An aircraft in flight is free to rotate in three dimensions: yaw, nose left or right about an axis running up and down; pitch, nose up or down about an axis running from wing to wing; and roll, rotation about an axis running from nose to tail.

6. Cardinal direction - Wikipedia

   en.wikipedia.org/wiki/Cardinal_direction

   Direction determination refers to the ways in which a cardinal direction or compass point can be determined in navigation and wayfinding.The most direct method is using a compass (magnetic compass or gyrocompass), but indirect methods exist, based on the Sun path (unaided or by using a watch or sundial), the stars, and satellite navigation.

7. Flying over mountains isn’t as scary (or hard) as you might think

   www.aol.com/lifestyle/flying-over-mountains-isn...

   For those who want their mountain flying in concise form, seek out a copy of Mountain Flying by Sparky Imeson, published in 1987 by Airguide Publications. Imeson, who ironically died in a March ...