02_01. Aicraft Classification by Principle

What principle allows lighter-than-air craft to float without the need for engines?

• Gravity Principle

• Buoyancy Principle

• Aerodynamic Principle

• Thrust Principle

Which of the following is a common example of a lighter-than-air craft?

• Helicopter

• Jet Plane

• Hot Air Balloon

• Glider

What role did lighter-than-air craft play in early aviation history?

• They were the first powered aircraft.

• They were used for space exploration.

• They played crucial roles and paved the way for powered flight.

• They were primarily used for military purposes.

What unique perspectives do hot air balloons and blimps offer?

• Underwater exploration

• Aerial photography and tourism

• Space observation

• Deep-sea diving

What is the typical method used to launch gliders to altitude?

• Using thermal updrafts

• Powered aircraft or ground-based winch systems

• By gliding off a cliff

• Using jet engines

How do pilots maintain or gain altitude while soaring in a glider?

• By using jet engines

• By using thermal updrafts and wind patterns

• By flapping the wings

• By using a propeller

What is required for the safe landing of gliders?

• High speed

• Precise control and planning

• Using parachutes

• Landing on water

Which type of rotorcraft uses main and tail rotors for lift and directional control?

• Helicopters

• Autogyros

• Tiltrotors

• Fixed-wing aircraft

What is a unique feature of autogyros?

• They use main and tail rotors for lift.

• They combine rotor lift with forward propulsion.

• They blend helicopter and fixed-wing capabilities.

• They excel in vertical takeoff and landing scenarios.

Which type of rotorcraft can transition between vertical and horizontal flight modes?

• Helicopters

• Autogyros

• Tiltrotors

• Fixed-wing aircraft