sentence: Glider planes have wings, and gliding animals have membranes which they stretch out.
sentences_before: Gliding' is when an object or animal goes through the air without active flight. All gliders use an aerofoil to slow their rate of descent.
sentences_after: By using rising air they can prolong their stay in the air. The word 'soaring' describes this, and is also used for the sport of gliding.
concept_name: glider plane
headings: Gliding
categories: Aircraft Animals