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Unmanned Aerial System Project - Coggle Diagram
Unmanned Aerial System Project
3.3 Roll, Yaw, Pitch
Pitch- The pitch is the up and down movement of the nose of the aircraft. The pitching motion is being caused by the deflection of the elevator of an aircraft. It is the rotation around the side to side axis.
Yaw- Yaw is the side to side movement of the nose of the aircraft. It is the rotation around its vertical axis. The yawing motion is being caused by the deflection of the rudder of this aircraft. The rudder is a hinged section at the rear of the vertical stabilizer.
Other rolling Methods- The Wright brothers use a method called wing wrapping. Many modern airlines do not use this anymore but instead use a spoiler to roll the airplane. The spoiler changes the shape of the airfoil, disrupts the flow over the wing, and causes a section of the wing to decrease its lift. Airlines use spoilers because spoilers can react more quickly than ailerons and require less force to activate, but they always decrease the total amount of lift for the aircraft.
Center of Gravity- Any aircraft will rotate about it's center of gravity. This point is the average location of the mass of the aircraft. It helps balance out the airplane so that its not tilting one way or the other but instead is staying straight. A plane will rotate about its center of gravity in any direction if the weight is balanced at this point.
Roll- Roll is the up and down movement of the wings of an aircraft. It is the rotation of the vehicle along its longitudinal axis. The rolling motion is caused by the deflection of ailerons of an aircraft. The aileron is a hinged section of the rear of each wing. They are a primary control surface in the aircraft. The ailerons work in each opposition; when the right aileron goes up, the left one goes down.
The Elevator- The elevator is a hinged section at the rear of the horizontal stabilizer. There is usually an elevator on each side of the vertical stabilizer. The elevators work in pairs. When the right elevator goes up the left one does too. It is usually on the rear or tail of the aircraft. The movement that the elevator does is called Pitch.
Thrust: To overcome drag, airplanes use a propulsion
system to generate a force called thrust.
Lift: To overcome the weight force, airplanes generate
an opposing force called lift, Lift is directed perpendicular to the flight
direction.
weight is the force that is always directed toward the center of the earth.
The forces of flight. The forces of flight is basically what causes the airplane to fly.
drag: The air resists the motion of the aircraft and the resistance force is called drag
3.1 Aircraft structures
Blended wing: has a larger payload than a flying wing called blended due to the bulbous payload area
Flying wing:May exhibit some yaw wobble (a left/right wiggle on the center axis).
Pictures of the forces
HOMEMADE WING:It can be inexpensive. Usually made of pink or blue insulation, EPS or XPS foam which is brittle but works.
flying wing:Pitch sensitive and the center of gravity (CG) should be tuned or it will exhibit excessive stall, or will dive or stall aggressively.
homemade wing:Requires a lot of testing to get center of gravity and airflow correct.
flying wing: the flying wing is very hard to launch it
