Load Factor
Weight and Balance
Aerodynamics
Stalls
Performance
400

If you double the weight of your drone by adding a heavy camera, the load factor in a level turn stays the same, but this speed increases.

What is stall speed?

400

If the CG falls outside the manufacturer’s allowable range, the aircraft may become _________.

What is unstable?

400

This term describes the angle between the Chord Line of the wing/blade and the relative wind.

What is the Angle of Attack (AoA)?
400

True or False: If your drone is flying very fast, you cannot stall it.

What is false?

400

This specific speed provides the greatest gain in altitude over a given distance.

What is the best angle of climb?

800

This results from a higher load factor.

What is higher effective weight?

800

The total mass of the aircraft.

What is weight?

800

These are the four forces of flight.

What are Lift, Drag, Weight, and Thrust?

800

Every wing has a critical version of this angle; if you go past it, you stall every time.

What is Angle of Attack?

800

As this atmospheric value increases, aircraft performance (lift and engine power) decreases.

What is density altitude?

1200

This is the only way to increase the load factor on a fixed-wing drone without changing its weight.

What is a turn?

1200

This specific point is where the aircraft would balance if suspended by a wire.

What is center of gravity?

1200

For a multirotor, this is the state where the drone sinks into its own downwash (wake), causing a rapid loss of lift.

What is vortex ring state?

1200

To recover from a stall, the flight controller must perform this action.

What is decrease the Angle of Attack (AoA)?

1200

This type of drag increases as the square of the airspeed.

What is parasite drag?

1600

_______ increases with bank angle.

What is load factor?

1600

____________ determine how efficiently and safely an sUAS can fly.

What is weight and balance?

1600

This aerodynamic effect occurs when a multirotor or fixed-wing UAS flies too close to the ground, increasing lift and reducing drag.

What is ground effect?

1600

The angle of attack is the angle between the wing/propeller chord line and what?

What is the relative wind?

1600

These "High, Hot, and Humid" conditions result in this type of density altitude.

What is high density altitude?

2000

True or False: A drone can be structurally damaged by pulling too many Gs, even if it is under its max gross weight.

What is true?

2000

This is the imaginary vertical plane from which all horizontal distances are measured for balance purposes.

What is the Datum?

2000

This force is the "by-product of lift" and is caused by the air pressure differential at the wingtips or rotor tips.

What is induced drag?

2000

A stall occurs when the wing exceeds this.

What is critical angle of attack?

2000

These aircrafts have to fly at a higher angle of attack to stay leveled.

What is heavier?

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