What are the 4 forces acting on a plane in flight?
Lift, gravity (weight), thrust, and drag
100
Name the 3 plane axes and indicate their rotational directions.
Vertical-side to side
Longitudinal-wings go up & down
Lateral-nose up & down
100
What did Bernoulli find out about pressure when air is accelerated?
It drops
100
Name the 3 major parts to the aerospace industry
Research
Suppliers
Users
200
Which part generates lift?
The wings
200
Which of the 4 forces could be compared to walking waist deep in a swimming pool and then trying to walk faster?
Drag
200
What are each of the 3 types of rotation called? (You must refer each to the axis.)
Vertical-yaw
Longitudinal-roll
Lateral-pitch
200
What is the condition in aerodynamics called where the critical angle of attack occurs?
Stall
200
What is an RFP?
Request for Proposal
300
Which part controls pitch?
The horizontal stabilizer
300
Which force takes an engine or a propeller to generate it?
Thrust
300
For each rotational motion, explain the plane component that causes the motion.
Roll-aileron
Pitch-elevator
Yaw-rudders
300
Use Bernoulli’s Principle to explain “lift.”
Wings are designed to make air flow go faster over the top, which causes the pressure to drop and the wing moves upward, against gravity.
300
What are the steps taken after a company generates an RFP?
Company publishes the RFP for the suppliers
Conducts a competition between rival suppliers
Company awards a contract for the winning design
400
Which part generates thrust?
The turbine engine
400
Which forces are considered natural forces?
Drag and gravity
400
Explain what cockpit controls are used by a pilot to cause yaw.
Rudder pedals
400
Which of Newton’s Laws explain how an aircraft is lifted against the force of gravity?
Newton's 3rd law
400
Name the 4 main organizational groups of people within a supplier company
Manager
Manufacturer
Test Engineer (Pilot)
Design Engineer
500
Which part decreases drag?
Winglets
500
Which forces are considered artificial forces? Explain why.
Thrust and lift. Both require mechanical devices (engine or propeller-thrust; wings-lift)
500
Explain what cockpit controls are used by a pilot to cause roll.
Yoke
500
Explain "downwash."
Air traveling over the upper surface of the wing goes much faster and much farther than the underside airflow. The air flowing over the top goes beyond and downward, which creates a huge amount of dynamic force.
500
Describe the functions of the 4 main organizational groups of people within a supplier company
Manager-coordinates/responsible for operations
Manufacturer-Builds things
Pilot-fly to determine functionality
Design Engineer-Ideas for building things