Part 107 · Chapter 6 of 12

Airspace Classification & Flight Hazards

10 free practice questions from the 173 in this chapter of StudyWren Aviation. Pick an answer and check it to see the explanation and its FAA source. Part of the free Part 107 practice test.

Class B airspace UAG-06-004

A survey site lies 22 NM from a Class B primary airport. It is inside the solid magenta 30 NM Mode C ring but outside the lateral limits of every Class B shelf, and the airspace at the surface is Class G. What does the ring mean for your Part 107 flight at 200 feet AGL?

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The answer is A: No authorization is needed; the ring is not Class B airspace

The 30 NM Mode C ring marks where manned aircraft need a transponder and ADS-B Out; it is not part of Class B, so Class G at the site needs no ATC authorization. A Part 107 drone may not operate with a transponder on unless the Administrator authorizes it, so the transponder belief is backwards.

Source: FAA-G-8082-22 p. 6 Chart Users' Guide p. 17 14 CFR 107.52 ACS UA.II.A.K1a

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Class C airspace UAG-06-008

A cell-tower client's site lies under a Class C shelf whose floor is charted at 2,400 feet MSL. The ground at the tower base is 1,250 feet MSL. How high above the ground does Class C begin there?

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The answer is B: 1,150 feet AGL

Class C floors and ceilings are charted in MSL, so subtract the ground elevation: 2,400 ft MSL − 1,250 ft ground = 1,150 ft AGL. Treating 2,400 as AGL ignores the terrain, and 3,650 adds the elevation instead of subtracting it.

Source: Chart Users' Guide p. 16 ACS UA.II.A.K1b

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Class E airspace UAG-06-020

In a mountain valley, Class E airspace is charted as beginning at 6,500 feet MSL. Your launch site is at 5,900 feet MSL. How far above the site does that controlled airspace begin?

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The answer is B: 600 feet AGL

Some Class E begins at a charted MSL altitude rather than an AGL height, so subtract the ground elevation: 6,500 ft MSL − 5,900 ft ground = 600 ft AGL. Reading 6,500 as AGL ignores the terrain, and 12,400 adds the elevation instead of subtracting it.

Source: FAA-G-8082-22 p. 6 ACS UA.II.A.K1d

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Class G airspace UAG-06-023

Your job is next to an airport that has an operating control tower, but the chart and the Chart Supplement show the surrounding airspace is Class G, not Class D. What does your Part 107 flight need?

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The answer is C: No ATC authorization, but avoid interfering with its traffic

Some airports in Class G airspace have a control tower, so a tower alone does not create Class D. Authorization under 107.41 depends on the airspace class (B, C, D or a Class E surface area), and Class G needs none; 107.43 still forbids interfering with the airport's traffic. Drone airspace access is not obtained from the tower.

Source: PHAK p. 15-11 FAA-G-8082-22 p. 6 ACS UA.II.A.K1e

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ATC and the NAS UAG-06-026

Which classes of airspace make up controlled airspace?

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The answer is C: Class A, B, C, D and E

Controlled airspace is a generic term covering Class A, B, C, D and E airspace, within which ATC service is provided according to the class. Class E is controlled even though a remote pilot usually needs no authorization there, and Class G is uncontrolled.

Source: 14 CFR 1.1 ("Controlled airspace") ACS UA.II.A.K1

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Other airspace areas UAG-06-050

Which published VFR route is a passage through Class B airspace that aircraft may use without an ATC clearance?

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The answer is B: A VFR corridor

A VFR corridor is airspace through Class B, with defined vertical and lateral limits, flown without a clearance or contact with ATC; in effect a hole through Class B. A VFR transition route crossing Class B requires communication and a clearance, and a Class B surface area is part of Class B itself.

Source: AIM 3-5-5 ACS UA.II.A.K3

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TFRs and NOTAMs UAG-06-054

A commercial rocket launch is scheduled from a spaceport near your coastal shoot. What should you do in planning?

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The answer is A: Check NOTAMs for the launch hazard area and active times

Sectionals mark space launch and reentry areas with a rocket symbol for awareness, but pilots are expected to check NOTAMs for the hazard area's location, lateral boundaries and active time. Under 91.143, no one may pilot an aircraft under an FAA airman certificate inside a NOTAM-designated space flight area except as ATC authorizes, and these areas start at the surface, not at 18,000 feet.

Source: AIM 7-6-17 14 CFR 91.143 ACS UA.II.A.K3

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Airspace authorizations UAG-06-072

You have a LAANC authorization for a Class D job, and the authorization says nothing about contacting the tower. You carry a handheld aviation radio. Must you call the tower before launching?

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The answer is B: No, unless the authorization specifically requires it

Unless specifically requested in an authorization, drone pilots do not need to notify the tower before they fly. Coordination with ATC happens inside the authorization process (LAANC, FAADroneZone), and small UAS operators should not contact ATC by radio or telephone for airspace access.

Source: faa.gov, LAANC AIM 11-8-2 ACS UA.II.B.K2

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Flight hazards UAG-06-095

During an emergency airborne inspection of one aircraft by another, which statement is correct?

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The answer is C: The troubled aircraft's pilot keeps control of it

The pilot best placed to assess the situation coordinates the intercept, but the pilot in command of the aircraft with the problem must not relinquish control of the situation or jeopardize the aircraft, and the maneuver must carry minimum risk to both. Coordination with ATC is one consideration; ATC does not run the intercept.

Source: AIM 7-6-11 ACS UA.II.B.K4c

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Night lighting and visibility UAG-06-112

Between sunset and sunrise, which lights must a manned aircraft in flight have on?

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The answer is A: Its position lights

Aircraft position lights must be lit on aircraft operated on the surface and in flight from sunset to sunrise, and aircraft equipped with anti-collision lights must run them day and night unless the pilot finds them a hazard. Landing lights are encouraged under the voluntary 'Operation Lights On' program but are not required.

Source: AIM 4-3-24 ACS UA.II.B.K9

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