Plane Sailing - ANSWERSRegards the Earth as a plane surface. Uses a triangle to solve for:
- True Course
- Distance
- Difference of Latitude
- Departure
Plane Sailing Limitations - ANSWERSDoesn't solve for Longitude of Arrival or DLo. Short distances only (a few hundred NM). Solves for Rhumb...
Advanced Navigation Test: Sailing
Questions & Answers
Plane Sailing - ANSWERSRegards the Earth as a plane surface. Uses a triangle to
solve for:
- True Course
- Distance
- Difference of Latitude
- Departure
Plane Sailing Limitations - ANSWERSDoesn't solve for Longitude of Arrival or DLo.
Short distances only (a few hundred NM). Solves for Rhumb Line only.
Great Circle vs Rhumb Line - ANSWERSGreat Circle - the shortest distance between
two points along the surface of the earth.
Rhumb Line - a line on the surface of the earth making the same oblique angle with all
meridians.
Plane Triangle Points - ANSWERS- P1 = Point of Departure
- P2 = Point of Arrival
- L1/L2 = Latitude of Point of Departure/Arrival
- Lam1/Lam2 = Longitude of Point of Departure/ Arrival
Difference in Latitude (l) - ANSWERS- D.Lat (l) = Difference in latitude between P1+P2
- Units = NM or minutes
- Labeled N if P2 is North of P1
- Labeled S if P2 is South of P1
Departure (p) - ANSWERSDistance in NM between Lam1+Lam2 measured E or W
along with the parallel of latitude through P2
- Labeled E if Lam2 is E of Lam1
- Labeled W if Lam2 is W of Lam1
Distance (D) - ANSWERSDistance NM between P1 and P2
Course Angle (C) - ANSWERS- Measured from True North or True South (whichever
one is closest)
- Must be converted to True Course (Cn)
NE Quadrant - ANSWERS000T<Cn<090T
C = Cn
C is labeled NE
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