Terms Associated
With Airfoils
Fight equilibrium is
straight and level flight.
Stability is being able to return
to flight equilibrium after outside force action on the aircraft such as air
turbulance.
Lift is the rise to
the airfoil.
Redirected lift factor is a term which can
be both simple and complicated in relation to its use. Simple movement
of the flight controls can redirect the lift factor to the airfoil. In highly critical aircraft
designs redirected lift factor can be a term used to discuss such things as an airplane
flying backwards and a winged spacecraft going into orbit.
Rearward
component of lift sometimes relates to the position of high pressure area against the wing when
its going through its operation.
Thrust
is usually considered in basic aircraft terms that pushes or pulls the aircraft through the air.
Drag's basic character in avation manner
relates to the resistance that the structure has as it flies through the air.
Parasitic drag comes from structures such
as landing gear that's down, radio attennas...
Induced
drag is drag induced from different movements using the flight controls.
Vortex and vortices are terms related to
the characteristics of developed sections of air that change and don't change as
the aircraft flies through the sky at varying degrees of flight operation.
Downwash is both a simple and complicated term. The use of this term basically
relates to the angle of attack and the style of airfoil as it goes through
its geometric plane of operation in flight.
Chord
line is an imaginary line drawn through the center of the airfoil from a leading edge to the
trailing edge.
Critical angle is a angle at which a stall ususally occurs at particular degree
station of its geometric position.
Angle of attack is a word
that usually relates to the position of the airfoil as it's controlled through the flight
control system when it flyies through the air. However, critical angle and angle of attack can
be built into the aircraft when it is manufactured or configured
without movement of the flight control systems.
Spanwise flow is usually the movement of the air from the center of the airplane down
the wing.
Relative wind is stationary air that envelops the
airfoil that doesn't move as the airfoil travels through its
environment.
Reynold's numbers are airfoil
number formula components created to describe windtunnel models as its relates o
full size aircraft.
Airfoil numbers are used by the Civil Aviation
Administration, The Federal Aviation Administration and NASA to
catagorize and number different styles and airfoil designs.
Wing loading is a structural engineering term that usually described in factors.
A component in understanding wing loading would be the weight of
the aircraft as it goes through a particular flight operation such as tight turns and
aerobatics with a full fuel load.
Compressability
is usually a term related to just before or just after an aircraft or airfoil goes faster than
the speed of sound. Compressability can make flight controls
disfuntional if not properly balanced or designed for that operation
of flight.
The first thing to think about in
Tinkerbells giant spaceship design that flys backward into orbit
is that in a strong headwind airplanes can actually fly backwards and the issue of large size comes
into the aspect of propeller compressability over the fuselage
and wings.Propeller blade bite and blade twist all repond to the numbers of
propeller RPM and engine RPM and torque and the work that the propeller design can do in moving the aircraft
down the runway and into the air.
The design of the BF and
ME-109 the wings are of an old 1930's design simple and large to be
able to generate high pressure areas under the wing at relativley low speeds.Fighter
planes of the 1940's used laminar flow wings which were thinner
in their shape and consequently used and had higher takeoff speeds.Tinkerbell thought
the old big wing off of the WW2 german fighterplane was a plus in understanding
that the BF-and ME-109 were relatively smaller fighters compared to others, many
of them allied.
Just in case as the giant hostest with the mostest as Me's
were sometimes called Tinkerbell added pulse jets on top of the wing to
boost its take off capacity with large amounts of fuel and propellants on
boared.
This facter and the factor that Christafer Robin and Udets platform use a circle
wing around the fuselage and fly backward give the Hexagon's giant airplane-spaceship
idea its unique design operation.