Question 1

(Refer to Figure 70.) Over the bay just south-east of the word 'piers', a sector of the Oakland Class C is labeled with a magenta T over 15. What does the T indicate?

Accepted Answer

The Class C extends up to, but not including, the floor of the overlying Class B airspace. Class C sector altitudes are shown in magenta as ceiling over floor. A ceiling of T means the Class C goes up to, but not including, the floor of the overlying Class B airspace; here the floor is 1,500 feet MSL.

Question 2

(Refer to Figure 80.) Just southwest of Westwinds Airport (D17), near Delta, a magenta flag symbol containing the letter G is printed. What should a remote pilot planning a flight there expect?

Accepted Answer

Glider operations. The sectional legend identifies the magenta G symbol as Glider Operations, so a remote pilot planning a flight near Westwinds and Delta should expect gliders in the area.

Question 3

How is a temporary flight restriction (TFR) put in place, and what should a remote pilot do about TFRs before each flight?

Accepted Answer

It is designated by a flight data center (FDC) NOTAM; check NOTAMs before each flight.. A TFR is designated by a flight data center (FDC) NOTAM. AC 107-2A tells the remote PIC to check for NOTAMs before each flight to determine whether any airspace restrictions apply.

Question 4

(Refer to Figure 71.) Near Pleasant Grove, east-northeast of Sacramento International, the Class C sector is labeled 41 over 16. The ground there is about 50 feet MSL. A remote pilot flies at 400 feet AGL. Where is the aircraft relative to the Class C airspace?

Accepted Answer

Below it, because the Class C floor in this sector is 1,600 feet MSL. Class C figures show the MSL ceiling over the MSL floor with the last two zeros removed. 41 over 16 is 1,600 to 4,100 feet MSL. The aircraft at about 450 feet MSL is below this shelf, so it is not in the Class C airspace.

Question 5

(Refer to Figure 78.) North-west of Hornick, an obstacle is charted 1376 over (309). A remote pilot flies the small UA at 400 feet AGL next to it over flat ground. How does the UA's height compare with the top of the obstacle?

Accepted Answer

About 91 feet above the top. The label gives the top at 1,376 feet MSL and, in parentheses, the height of 309 feet above ground. Both the UA's altitude and the 309 are measured from the same flat ground, so the UA is 400 - 309 = 91 feet above the obstacle's top.

Question 6

(Refer to Figure 26.) A remote pilot is hired to photograph hangars at Jamestown Regional Airport (JMS), just south of area 4, from 150 feet AGL. The airport lies inside a dashed magenta line. What does part 107 require for this flight?

Accepted Answer

Prior ATC authorization, because the dashed magenta line marks the Class E surface area for the airport. The dashed magenta line around Jamestown Regional shows a Class E surface area. Section 107.41 requires prior ATC authorization to operate within the lateral boundaries of a Class E surface area designated for an airport, even at 150 feet AGL.

Question 7

In which of the following Class E airspace locations does 14 CFR part 107 require prior ATC authorization for a small UA flight?

Accepted Answer

Within the lateral boundaries of the Class E surface area designated for an airport.. §107.41 lists Class B, C and D airspace plus the lateral boundaries of the surface area of Class E airspace designated for an airport. Elsewhere in Class E, a remote pilot in most cases does not need ATC authorization.

Question 8

(Refer to Figure 71.) Near the bottom of the figure, south-east of Eagles Nest (Pvt), an obstacle group is charted 597 over (425) with a short descriptive label. On a calm, cold morning, a remote pilot will survey a field next to it at 300 feet AGL and sees no plume above the structures. What should the pilot assume?

Accepted Answer

They are cooling towers; an invisible exhaust plume may still cause turbulence, so the airspace near them needs caution. The obstacle group 597 (425) is labeled cooling twrs. Cooling towers emit exhaust plumes that can cause turbulence and vertical shear. A plume may be invisible, and stacks without a visible plume may still be operating, so the remote pilot should treat the airspace near them with caution, especially in calm, cold air at low altitude.

Question 9

(Refer to Figure 26.) A remote pilot will film a runway inspection at 100 feet AGL on the grounds of Cooperstown Airport (S32), north-east of area 2, inside the faded magenta ring. No dashed line surrounds the airport. According to the AIM, what does this on-airport flight require?

Accepted Answer

Coordination with the airport operator; no ATC authorization is needed in this Class G airspace. Cooperstown sits in a magenta vignette, so controlled airspace (Class E) begins 700 feet above the ground, and no dashed line marks a surface area. At 100 feet AGL the small UA is in Class G, which remote pilots may generally use without special permission, so neither LAANC nor a DroneZone request applies. Because the flight is on the airport itself, the current AIM (11-7-1b) says it requires coordination with the airport operator. AC 107-2A 5.10.1 (2021) says that outside controlled airspace no notification or authorization is necessary at or near an airport; for operations on the airport, the newer AIM 11-7-1b is the current guidance, which is why this question asks what the AIM says.

Question 10

A chart shows a VFR corridor through Class B airspace above a riverfront site. A remote pilot reasons that, because manned aircraft fly the corridor without an ATC clearance, flying the small UA at 200 feet AGL below it needs no ATC authorization. Why is this reasoning flawed?

Accepted Answer

A VFR corridor is surrounded on all sides by Class B airspace and does not extend down to the surface. A VFR corridor is airspace through Class B airspace, with defined vertical and lateral boundaries, in which aircraft may operate without an ATC clearance. It is surrounded on all sides by Class B airspace and does not reach the surface like a VFR Flyway. The corridor therefore gives no basis for a low-level flight below it; the remote pilot must determine the airspace at the flight altitude, and §107.41 requires authorization in Class B.

Question 11

(Refer to Figure 75.) Near the bottom of the figure, south of Gila Bend, a restricted area is labeled R-2305. Where on the sectional chart should a remote pilot look for this area's altitudes, times of use, and controlling agency?

Accepted Answer

In the special use airspace tabulation printed on the chart. On the sectional, the area itself is marked only with its type and number. The special use airspace tabulation on the chart lists prohibited, restricted and warning areas numerically, with altitude, time of use and the controlling agency or contact facility and frequency.

Question 12

(Refer to Figure 76.) A remote pilot will photograph farmland near the obstacle charted as 3130 (1089), south of Cedar Creek and east of highway 83. It is a guyed antenna tower. What minimum horizontal distance from the tower is recommended?

Accepted Answer

At least 2,000 feet. Guy wires supporting skeletal structures are very hard to see and can extend about 1,500 feet horizontally from the structure. The study guide therefore advises avoiding all skeletal structures horizontally by at least 2,000 feet.

Question 13

(Refer to Figure 59.) South-east of Metamora, inside the outer magenta circle of the Toledo Class C, an obstacle is charted 988 over (255). A remote pilot inspecting it keeps the small UA within 400 feet of it. What is the highest altitude allowed, and is the UA inside the Class C there?

Accepted Answer

1,388 feet MSL, which is below the 2,000-foot MSL floor of this Class C sector. The obstacle's top is 988 feet MSL and its height is 255 feet AGL. Within a 400-foot radius, part 107 allows flight up to 400 feet above the structure's top: 988 + 400 = 1,388 feet MSL. The outer Class C sector is labeled 47 over 20 (ceiling 4,700, floor 2,000 feet MSL), so the UA stays below the Class C.

Airspace practice questions