Question 1

Before each flight, the Remote PIC must ensure that:

Accepted Answer

14 CFR § 107.49 requires the remote pilot to ensure that any object attached or carried by the small unmanned aircraft is secure and does not adversely affect the flight characteristics or controllability.

Question 2

The most critical factor affecting the stability of an aircraft is:

Accepted Answer

The location of the Center of Gravity (CG) is critical to stability. If the CG is outside the manufacturer's limits, the aircraft may become uncontrollable.

Question 3

What happens to the stall speed of an aircraft as the load factor increases (e.g., in a steep turn)?

Accepted Answer

As load factor increases (such as in a bank), the wings must support more apparent weight. This requires a higher angle of attack, causing the aircraft to stall at a higher airspeed.

Question 4

When operating an aircraft with a heavy load, you can expect:

Accepted Answer

A heavier aircraft requires more lift, which increases drag and stall speed, while reducing maneuverability and climb performance.

Question 5

In a 60-degree banked turn, the load factor on the aircraft is approximately:

Accepted Answer

In a coordinated level turn with a 60-degree bank, the load factor is 2 Gs. The structure must support twice the weight of the aircraft.

Question 6

If the Center of Gravity (CG) is located too far aft (rearward), the aircraft will:

Accepted Answer

An aft CG reduces longitudinal stability. If the aircraft stalls, it may be difficult or impossible to lower the nose to recover.

Question 7

How does high density altitude affect the performance of a small UA?

Accepted Answer

High density altitude (thin air) reduces the efficiency of the propeller (less air to bite into) and reduces the lift generated by the wings/rotors.

Question 8

Which factor creates the greatest increase in load factor?

Accepted Answer

Load factor increases significantly in turns. Straight and level flight is 1 G. A 60-degree turn is 2 Gs.

Question 9

Before attaching a payload to a drone, you should check:

Accepted Answer

The remote pilot must verify that the aircraft remains within the manufacturer's specified weight and balance limits with the payload attached.

Question 10

If a drone weighs 30 lbs and enters a 60-degree bank turn (Load Factor = 2), the structure must support a load equivalent to:

Accepted Answer

Load Factor x Weight = Total Load. 2 x 30 lbs = 60 lbs.

Question 11

Exceeding the center of gravity limits established by the manufacturer may result in:

Accepted Answer

Operating outside CG limits adversely affects controllability and stability, potentially leading to a crash.

Question 12

Maximum endurance is obtained at the speed for:

Accepted Answer

Maximum endurance (longest time aloft) occurs at the speed that requires the minimum amount of power to maintain altitude.

Question 13

Maximum range is obtained at the speed for:

Accepted Answer

Maximum range (greatest distance) occurs at the speed that yields the maximum lift-to-drag ratio (L/D MAX).

Question 14

Loading a camera gimbal on the front of a drone shifts the Center of Gravity:

Accepted Answer

Adding weight to the front of the aircraft shifts the CG forward.

Question 15

What is the consequence of operating an aircraft above its maximum gross weight?

Accepted Answer

Overloading an aircraft reduces climb performance, shortens range/endurance, increases takeoff distance, and increases stall speed.

Question 16

If you add prop guards to your drone, how does this affect performance?

Accepted Answer

Prop guards add weight and aerodynamic drag, both of which reduce the overall efficiency and flight time of the aircraft.

Question 17

The angle of attack at which a wing stalls remains constant regardless of:

Accepted Answer

A given wing will always stall at the same critical angle of attack, regardless of the aircraft's weight, speed, or load factor.

Question 18

A stall occurs when the smooth airflow over the unmanned airplane's wing is disrupted and the lift degenerates rapidly. This is caused when the wing exceeds:

Accepted Answer

Stalls are caused by exceeding the critical angle of attack.

Question 19

When loading a sUAS with cargo, the remote pilot must ensure the cargo is:

Accepted Answer

14 CFR § 107.49 requires that any attached object is secure. Shifting cargo can change the CG in flight, leading to loss of control.

Question 20

Which of the following is considered a 'Dead Load'?

Accepted Answer

Dead load refers to the permanent weight of the structure. (Though this term is less common in drone specific exams than 'Empty Weight', it tests general loading concepts).

Question 21

If a drone is tail-heavy (CG too far aft), what is the likely flight characteristic?

Accepted Answer

An aft CG makes the aircraft longitudinally unstable. Small pitch inputs can result in large attitude changes, making it difficult to control.

Question 22

When operating in cold weather (low density altitude), the drone's performance will generally:

Accepted Answer

Low density altitude (dense air) improves aerodynamic performance (lift and thrust). However, cold temps often reduce battery efficiency, which is a separate physiological factor.

Question 23

You are flying a quadcopter. If one motor fails, the aircraft will:

Accepted Answer

Most quadcopters cannot sustain flight with one motor failure. The loss of thrust and torque balance causes a roll/yaw toward the dead motor and a loss of altitude.

Question 24

Basic empty weight includes:

Accepted Answer

Basic empty weight typically includes the standard empty weight plus optional equipment installed.

Question 25

If you modify your drone by attaching a 3rd party camera, what must you consider?

Accepted Answer

Modifications affect weight and balance (CG). 14 CFR 107.49 requires ensuring the aircraft is properly loaded and safe.

Question 26

A remote pilot enters a turn and increases the load factor to 2.0. If the drone's stall speed in level flight is 20 knots, what is the new stall speed?

Accepted Answer

Stall speed increases in proportion to the square root of the load factor. The square root of 2 is approx 1.41. 20 knots * 1.41 = 28.2 knots.

Aircraft Loading & Performance Practice Questions

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