A review of the national airspace system within the US.

1. National Airspace System(NAS)
Review

2. Class “A” Airspace
• From 18,000 MSL to FL600
• Must set your altimeter to 29.92 at 18K MSL
• Must be IFR Pilot and Aircraft
• Must be on an IFR Flight Plan
• DME above FL240
• RVSM above FL290

3. Questions
• Why 18K MSL and not FL180?
• Figure this; What if you were VFR at 17,500
MSL and the local altimeter was 29.42?

4. Class “B” Airspace
• How does it look on a sectional?
– Big & Blue, blue rings or thick lines
– Some resemble an upside down wedding cake

5. Class “B” Airspace
• Dimensions (Typical)
– Surface to 10,000’ MSL
– 30 NM radius from main airport
– Usually has different “floors”

6. Class “B” Airspace
• What do you need to enter it?
– 2 way radio
– Operable Mode C transponder
– Clearance

7. Can You Enter the BRAVO??
• N9185S, turn left heading 270, descend and
maintain four thousand five hundred, traffic at
your two o'clock position and 2 miles.
Peachtree DeKalb airport in on your twelve
and one zero miles, advise the airport in site.

8. Class “B” Airspace
• VFR Weather Minimums
– 3 statute miles visibility
– Remain Clear of Clouds
– No Special VFR here

9. Class “B” Airspace
• Mode “C” Veil
• Extends 30 NM from the NAV aid on the field

11. Class “B” Airspace
• So what if you want to navigate through &
stay outa trouble????

12. TAC Chart
• www.skyvector.com

13. Class “C” Airspace
• How it looks on a chart.
• Magenta solid rings

14. Class “C” Airspace
• Dimensions, 2 main parts
– Inner Circle, SFC to 4000 AGL
– Outer Ring, 1200 AGL to 4000 AGL

15. Class “C” Airspace
• Entry requirements.
– 2 Way Radio
– Mode C Transponder in and above
– Tail number acknowledgment

16. Class “C” Airspace
VFR Weather Minimums
• 3 Statute miles visibility & 1,5,2

17. Can you Enter the CHARLIE??
• N9185S, turn left heading one eight zero,
descend and maintain four thousand five
hundred for traffic. The Columbus airport in
on your twelve and one five miles, advise the
airport in site

18. What about this one??
• N9185S, Stand by.

19. Class “D” Airspace
• How it looks on the sectional?
• Blue Dashed lines or circles

20. Class “D” Airspace
• Dimensions
• SFC to 2500 AGL
• 5 Statute Miles radius

21. Class “D” Airspace
Entry Requirements
• Establish 2 way radio
• No transponder needed!

22. Class “D” Airspace
VFR Weather Minimums
• 3 Statute miles visibility & 1,5,2

23. Questions
• Why 5 Statute miles and not 5 Nautical miles?

24. Class “E” Airspace
Most flown through – so all should now this one
• What does it look like on a chart?

25. Class “E” Airspace
• “E” from SFC to 18K MSL

26. Class “E” Airspace
• From 700 AGL to 18K MSL
• Shaded Magenta

27. Class “E” Airspace
• 1200 to 18K MSL

29. Other Area’s of “E”
• Victor Airways
• Above FL600
• Above 18K MSL in the Alaskan Peninsula

30. Class “G” Airspace
If you can not classify the airspace as A,B,C,D, or
E, then It is considered class G.

31. Class “G” Airspace
How does it look on a chart?

32. ?????????

34. Class “G” Airspace
Dimensions
• SFC to 14,500
• Normally goes to 700 or 1200 agl
• Think GROUND

35. Class “G” Airspace
Entry Requirements
*NONE*

36. Class “G” Airspace
VFR Weather Minimums

38. Special Use Airspace
Restricted Area

39. Special Use Airspace
Prohibited Area

40. Special Use Airspace
Military Operations Area

41. Special use Airspace
Alert & Warning Areas

42. Special Use Airspace

43. Watch Out For WHO???
• 4 digits, at or below 1500 AGL
• 3 digits, means above and below 1500 AGL
• Speeds in excess of 250 KIAS

44. Other Airspace Info
• www.AOPA.org
• www.FAA.GOV
• www.FAASafety.gov
• Right here at the flight school!!