Air
What characteristics do aircraft designers look for when choosing materials?
c. crack resistant
d. heat resistant
e. corrosion resistant
The use of fire-resistant fabrics on passenger airliners is required by _______.
the FAA
A _______ is a turbine engine that uses its rotational energy to turn a propeller.
turboprop
Multirotor drones move horizontally by tilting their rotors so that thrust is created _______.
in a diagonal direction
Explain how fabrics used in the construction of modern aircraft have improved when compared to vintage aircraft.
The fabrics used to cover vintage airframes were made of natural fibers such as cotton and linen. They were strong for their weight and readily available, but did have issues, such as flammability and a short life when exposed to the elements.
Modern fabrics used to cover gliders, home-built, and light sport aircraft today are synthetic blends such as nylon and polyester, which are much stronger and more durable.
In order for the aviation industry to survive, _______ must be is its primary concern.
safety
Using strong materials in the design and construction of a drone can pose a problem because _______.
they are often heavier
Which of the following is part of the empennage of a fixed-wing aircraft?
rudder
vertical stabilizer
horizontal stabilizer
Aircraft manufacturers and their customers benefit when a production facility _______.
is run efficiently
Describe the danger of an airliner becoming depressurized at a very high altitude. What safety measures are built into airplanes for passenger safety?
There is a lack of the oxygen needed for life at the altitudes that airliners typically fly. Passengers would pass out and eventually die in an unpressurized cabin. With a loss of cabin pressure, oxygen masks are deployed for passengers to put on so that they can continue to breath. Pilots also use oxygen from masks located inside the cockpit. In the event of a rapid depressurization, pilots are trained to descend to a lower altitude as quickly as possible where more oxygen is available.
Which UAS construction material is the lightest, easiest to shape, and easiest to repair?
foam
When the upward thrust generated by the rotors equals the weight of the drone, the drone is ______.
hovering
Which of the following are composite materials used in the production of aircraft?
carbon-fiber
fiberglass
Airframe parachutes are most commonly found on _______.
general aviation aircraft
Explain why weight is an important consideration when designing a drone.
Weight is a consideration for the design of every sort of aircraft. Weight savings in drones can be used for larger batteries and more cargo capacity.
Multirotor drones are a type of _______ aircraft.
heavier-than-air
Which of the following are reasons why composite construction materials are used to build aircraft?
They are lightweight.
They are durable
An example of a safety feature designed into a general aviation airplane includes ________.
ballistic parachute system
flaps
emergency locator transmitter (ELT)
Why is it important for there to be no ice on the wing of an airplane?
Ice makes the airplane heavier.
Ice changes the shape of the wing.
Explain how anti-torque pedals are used to change the direction a helicopter points while it is in flight.
When the anti-torque pedal is applied, it changes the thrust provided by the tail rotor. This causes the helicopter to yaw in the intended direction.
Which metal is most likely to be used for landing gear assemblies?
steel
How does an aircraft collision avoidance system work?
It warns the pilot when other aircraft are in the vicinity.
What kind of drone requires a tail rotor
single-rotor drone
The basket of a hot air balloon is similar to the _______ of an airplane or aircraft.
fuselage
Identify which component of a rotorcraft creates lift. For a bonus point, explain how.
Rotorcraft lift is created by the main rotor.
Lift is created when the rotors push air downward. An equal opposite reaction happens that pushes the rotorcraft up.