A- 175 degrees
B- 255 degrees
A- deflects from left side of the scale to right side of the scale.
B-deflects from the center of the scale to either far side of the scale.
C-deflects from half scale left to half scale right
A- Above 18,000 feet MSL.
At or above 24,000 feet MSL if VOR navigational equipment is required.
In positive control airspace.
A- To provide the latex information on the status of navigation facilities to all FSS facilities for scheduled broadcast.
B-To issue notices for all airports and navigation facilities in the shortest possible time.
To advise of changes in flight data which affect instrument approach procedure (IAP), aeronautical charts, and flight restrictions prior to normal publications.
A-Every 30 minutes if weather conditions are below basic VFR; otherwise, hourly.
B-Upon receipt of any official weather, regardless of content change or reported values.
C-Only when the ceiling and/or visibility changes by a reportable value.
The in-flight visibility is less than 3 miles and the ceiling is less than 1,500 feet within Class E airspace
The ground visibility is less than 3 miles and/or the ceiling is less than 1,000 feet in Class B,C, or D airspace.
An IFR clearance is required to operate within the airport traffic area.
A- Immediately after canceling the flight plan.
B-When advised by ARTCC.
C-Before entering Class D airspace.
A-18,000 feet to and including FL450
B- 18,000 feet to and including FL600.
C-12,500 feet to and including FL600.
A- ATC does not control air traffic.
B- ATC controls only IFR flights.
C- the minimum visibility for VFR flight is 3 miles
A- 2,000 feet; (E) 1,000 feet; (F) 2,000; (H) 500 feet.
B- 5 miles; (E) 1,000 feet; (F) 2,000 feet; (H) 500 feet.
C- 3 miles; (E) 1,000 feet; (F) 2,000 feet; (H) 500 feet.
A- 1,000 feet AGL.
B- 2,500 feet AGL.
C- 4,000 feet AGL.
A- 500 feet AGL.
B- 700 feet AGL
C- 1,200 feet AGL
A- 14,500 feet MSL.
B- 18,000 feet MSL.
C- 60,000 feet MSL.
A- 4,000 feet MSL
B- 10,000 feet MSL
C- 14,500 feet MSL