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→Lift, drag and glide performance
== Lift, drag and glide performance ==
=== Lift and drag ===
For the glider to remain in (almost) level flight, it needs to produce a force opposite to the weight. This force is provided by the wings as Lift is generated when air flows across them. Lift by itself is not possible, Drag is also produced along with it.
There are many theories about how lift is actually generated on the wings.
== Control and stability ==
