An illustration of the plane's centers of gravity, lift drift and thrust to effectively glide the plane…

A dihedral board on an aeroplane, or airplane, for stability. The boards are raised on short legs over…

A Dunne aeroplane, or airplane, design. the V shape plane stabilizes by having a V shaped depression…

"As the bottom of the surface meets the air, it compresses it and accelerates it downwards. As a result…

A diagram illustrating the airplane's angle of incidence at axis A, direction of motion and thrust.

The diagram illustrating the plane's angle of incidence pointing down at the motion axis. The plan will…

Illustration of a dihedral angle bisected by a plane. "Every point in a plane which bisects a dihedral…

Illustration of a convex polyhedral angle. "The sum of the face angles of any convex polyhedral angle…

Illustration of polyhedral angle. "The opening of three or more planes which meet at a common point…

Trihedral angle. "The sum of any two face angles of a trihedral angle is greater than the third face…

Illustration of 3 equal dihedral angles. "Two dihedral angles have the same ratio as their plane angles."

Illustration used to show that two trihedral angles are equal or symmetrical when the three face angles…

A pilot's cockpit from a propeller aeroplane, or airplane. The diagram illustrates the different parts…

Illustration showing the intersection of a plane with a cone. The solid is shown in perspective and…

Illustration of a plane tangent to a cone which contains one element of the cone but does not cut the…

Diagram of a cone with spheres and cut by a plane to depict the conic sections.

Diagram of a cone with inscribed spheres and cut by various planes to depict the conic sections: circle,…

A design of the propeller airplane, or aeroplane, in flight with a higher tail to create an angle of…

A propeller airplane, or aeroplane, design with a high tail. This design creates a larger angle of incidence…

Illustration of a propeller aeroplane, or airplane, with lower tail in flight.

The propeller airplane, or aeroplane, design in fast landing. This design requires a large landing area…

A motion diagram of the aeroplane, or airplane, illustrating the plane's direction to create thrust…

A diagram of wing airplane illustrating the skeleton. The shape of the wing creates a lift—draft…

An airplane wing free body diagram illustrating forces acting on the wing.

An illustration of stabilizing the plane by setting the back wing at less angle of incidence than the…

The illustration shows the airplane's fin, or keel surface. The fin of the airplane is located on the…

A plane flying above land illustrating the use of ailerons to adjust the angle of incidence to adjust…

An airplane flying above the show illustrating the aerodynamics of the plane with the tail wing at the…

An illustration of the plane flying over land from point A to B by flying the plane with the direction…

The diagram illustrating an approximate angle of flying an aeroplane, or airplane, flying upside down…

The illustration of the plane descending while spiraling down. The radius of the spiral spin is getting…

Airplane flying almost sideway, called sideslip. The plane enters sideslip by lowering the wing and…

A sideslip of the plane with the rudder turned left so that the plane flying sideways with the nose…

The airplane is flying with the elevator depressed and rudder turned to recover the plane to the upright…

The illustration of the plane creating wash in and washout to reduce the lift distribution across the…

"The distance of A and B below H is indicated on the V projection. Thus if to A∧h B∧h the perpendiculars…

"The H projection of the line AB in the space is a line connecting the feet of all the perpendiculars…

Illustration of an xy grid/graph. It is the Cartesian coordinate system with some increments from -10…

Illustration of an xy grid/graph with grid lines shown. It is the Cartesian coordinate system with some…

Illustration of an xy grid/graph. It is the Cartesian coordinate system with the x- and y-axes and even…

Illustration of an xy grid/graph with grid lines shown. It is the Cartesian coordinate system with the…

Illustration of an xy grid/graph. It is the Cartesian coordinate system with axes and some increments…

Illustration of an xy grid/graph with grid lines shown. It is the Cartesian coordinate system with axes…

Illustration of an xy grid/graph. It is the Cartesian coordinate system with the x- and y-axes and increments…

Illustration of an xy grid/graph with grid lines shown. It is the Cartesian coordinate system with the…

Illustration of an xy grid/graph. It is the Cartesian coordinate system with the x- and y-axes and some…

Illustration of an xy grid/graph with grid lines shown. It is the Cartesian coordinate system with the…