GREAT PLANES RealFlight 7 User Manual page 372

Viewport
RealFlight Term
Virtual Flight Instruction
RealFlight Term
Washout
R/C Term
Waterfall
R/C Term
Wing Loading
R/C Term
A picture-in-picture display set within the RealFlight
7 main display. The Viewport is independently
adjustable and serves as its own unique "window on
the world".
This RealFlight 7 feature lets you choose from a
variety of prerecorded maneuver training lessons.
The maneuver is then demonstrated on screen,
along with the instructor's voice and control stick
movements. You can index, pause, and even loop
the maneuver playback for training purposes.
An intentional twist in the wing, which causes the
wing tips to have a lower angle of attack than the
wing root. In other words, the trailing edge is
higher than the leading edge at the wing tips.
Washout helps to prevent tip stalls.
The Waterfall is a maneuver where the plane pivots
360 degrees in the pitch axis with as little forward
motion and altitude deviation as possible. As the
name suggests, this maneuver resembles a waterfall
during flight.
The amount of weight per square foot that has to
be overcome to provide lift.
expressed in ounces per square foot.
specification can be easily calculated as follows: first
determine the area of the wing in square inches
then, simply divide by 144 to obtain square feet.
Divide the total weight (in ounces) of the airplane
by the wing area (in square feet).
This information is valuable when deciding on
which airplane to build next. Planes with high wing
loading must fly faster to stay in the air. These are
generally "performance" airplanes. Conversely, a
plane with lower wing loading does not need as
much air flowing around the wing to keep it flying.
Gliders and trainer airplanes fall into this category
because in this case, slow, efficient flight is highly
desirable.
368
It is normally
This