Assertion: glider's speed | /r/HasProperty | low
Facets:
value: relatively
type: DEGREE
value: in most of the early gliders
type: LOCATION
value: very
type: DEGREE
Source sentences:
text: In most of the early gliders, flying speed was very low; normal practice was to fly into a wind so that the actual acceleration required was not great.
text: Since gliders fly a relatively slow speeds, wing warping isn't as pronounced, but it would be a real problem in a fast aircraft.
text: Its low speed makes it vulnerable to tides and currents, which can knock it off course.