# NAV Review 1

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1. What is a circle called whose radius and centre are not that of the sphere itself?
Small Circle
2. What is a rhumb line?
a regularly curved line on the surface of the earth cutting all meridians at the same angle. Thus the rhumb line is not the shortest distance between two points. Advantage is that its direction is constant.
3. What type of map will a rhumb line be a straight line on?
Mercator
4. What timeframe must an ETA for an enroute airways nav be accurate to?
+/- 2 minutes
5. How much must a sensitive area or built up area be avoided by?
1nm or 1000ft
6. When an aircraft is departing IFR, which direction should turns be made in?
As directed by ATC or published in the AIP.
7. What is the direction of earths rotation?
Towards East
8. What is the rule for magnetic variation?
• Variation West, Magnetic Best
• Variation East, Magnetic Least
9. What type of circle has the radius and centre the same as that of the sphere itself?
Great Circle
10. On what map are rhumb lines straight?
Mercator
11. What are the requirements for a map to be orthomorphic?
Angles are correctly represented everywhere on the sheet.
12. How is bug speed calculated?
• Work from required GS = 120KIAS
• Subtract TAS to give IAS for 120. Eg 2000 ft, IAS will be 116.
• Work in head/tailwind calc. eg 10 kt headwind: IAS of 126 for a GS of 120.
13. Define North
The direction in which an observer would have to move in order to reach the North Pole.
14. What is the airtrainer config for flying for endurance?
• Low as practicable
• RPM to 1800
• MAP to 18'
• Lean to RR+5lph
15. What is the PTS met minima for solo students?
• 1000ft cloud base
• 5KM vis
16. Met minima for uncontrolled airspace below the plane of division
5KM vis, Clear of cloud and in sight of the ground.
17. What is the low level nav assumed fuel consumption?
70LPH
18. What three types of deviation are there? What are their time losses?
• Parallelogram - No time loss
• Triangle - Time loss IAW deviation angle
• Cut corners - Time gain
19. Explain point to point nav?
Point to point nav is the technique used to fly from a point on one radial of a VOR to another point on another radial of the same VOR without having to arc or fly overhead the aid. The principle of point to point is using the HSI/RMI as a circular map presentation.

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 Author: Anonymous ID: 224430 Filename: NAV Review 1 Updated: 2013-06-20 07:21:48 Tags: NAV Review Folders: Description: Nav review Show Answers:

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