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Gen Nav (Misc (Cadbury Dairy Milk Very Tasty Drift Track, DRC
+/-10deg…
Gen Nav
Misc
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DRC
- +/-10deg is acceptable (if not NO FLY)
- Check the indication is in limits via other compass system or runway direction
- DEPARTURE (Nm) = chlong (in minutes ∴ * 60) * Cos Lat
- EC = chlong (in degrees) * Sin (Mean Lat)
- Conversion Angle = 1/2 EC
Scale
- \( Scale (as D) = \frac{ED}{CL} \)
- REMEMBER : THIS NUMBER ON ITS OWN IS NOT A SCALE YOU NEED TO ADD 1 IN FRONT OF IT 1:XXXX
- Exam: If Longitudes add to 180deg the shortest route is over the N or S pole ∴ [(90-latA) + (90-latB) ] * 60 = NM
- aXXXX = zero
- isoXXXX = equal
REMEMBER TROPOPAUSE 36090FT = -56.5C!!! when using CRP5 or any calcs!!!!
Compressibility correction is needed when TAS > 300kts!!!!
THERE IS NO COMPRESSIBLITY CORRECTIONG WHEN CONVERTING MACH TO TAS!!!! (IT’S ONLY FOR PRESSURE ALTITUDES
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Solar System Ch 1
- seasons due to tilt of earth (23.5deg) and seasons develop as we rotate around the sun
- Celestial Sphere
- Celestial Equator
- Ecliptic
- Obliquity of the ecliptic
- Declination and Hour Angle (GHA or LHA)
Kepler’s Laws 1 and 3:
- Orbit of each planet is an ellipse, with sun at 1 foci
- RADIUS VECTOR, sweeps equal areas during equal time periods
Degrees and Dates
- Aphelion (AFAR) 3 Jul
- Perihelion 3 Jan
- Spring (Vernal) Equinox 21 Mar
- Summer Solstice 21 Jun
- Autumn Equinox 21 Sep
- Winter Solstice 21 Dec
- Tropic of Cancer 23deg N 27'
- Tropic of Capricorn 23deg S 27'
- Artic Circle 66deg N 33'
- Antarctic Circle 66deg S 33'
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Departure Ch 5
- Depature = Distance along a parallel of latitude in an east west direction
- At the equator 1’ ChLong = 1nm
- At the pole 1’ ChLong = no distance !!!
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