Sailplanes and hang gliders belong to a group of
aircraft known as gliders. Gliders are aircraft without
engines. The sailplane is a very popular glider. It is usually
towed or pulled up into the air by an engine-powered airplane. A
towrope connects the sailplane to the airplane. The sailplane flies
on currents of rising air after the towrope is released. These
rising air currents are called "up drafts".
The hang glider looks like a triangle-shaped kite.
A harness is attached to the bottom to hold the pilot. The pilot
wears the harness and holds onto the glider as he/she runs down a hill or
jumps off a cliff. Today many hang gliders can be seen being pulled
over lakes by boats. The wind lifts the glider into the air.
The hang glider usually travels as fast as a car. Hang gliders can
fly as high as a two-story building, but never as high as an airplane
flies.
Directions: Answer the questions about gliders.
Gliders are aircraft without .
A
is usually
towed or pulled up into the air by an engine-powered airplane.
"Up drafts" are
air currents.
A pilot is attached to a hang glider by a .
Which of the following is shaped like a triangle-shaped
kite?
hang
glider
sailplane
Which of the following is used to connect a sail plane
to an airplane?
harness
towrope
Which of the following flies
on currents of rising air after the towrope is released?
hang
glider
sailplane
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