Assertion: glider's engine | /r/HasProperty | small
Facets:
Source sentences:
text: Today, modern gliders have small engines to help them get off the ground and to extend the flying time.
text: Most gliders do not have an engine, although motor-gliders have small engines for extending their flight when necessary by sustaining the altitude (normally a sailplane is on a continuously descending slope) with some being powerful enough to take off self-launch.