Gliding flight definitions

Gliding flight

1) Engineering ratio
Found on https://www.crosswordclues.com/clue/gliding-flight

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Gliding flight

Gliding flight is heavier-than-air flight without the use of thrust; the term volplaning also refers to this mode of flight in animals. It is employed by gliding animals and by aircraft such as gliders. This mode of flight involves flying a greater distance horizontally than vertically and is therefore can be distinguished from a simple descent li...
Found on http://en.wikipedia.org/wiki/Gliding_flight

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gliding flight

Unpowered flight, as in birds that are flying without flapping their wings.
Found on https://academy.allaboutbirds.org/bird-academys-a-to-z-glossary-of-bird-ter

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gliding flight

flight by heavier-than-air animals or machines without the use of self- or engine-powered thrust
Found on https://sciencetrek.org/sciencetrek/topics/flight/glossary.cfm

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