Before the invention of the variometer, sailplane pilots found it very hard to soar.
From the en.wikipedia.org
In his mid-90s, he went for rides in a hot air balloon and a sailplane.
From the edition.cnn.com
The action of diving or pulling up affects the speed of the sailplane.
From the en.wikipedia.org
Like skiers, sailors and surfers, sailplane and hang-glider pilots have their own vocabulary.
From the time.com
Eaton was also a sailplane devotee, though he no longer owns one.
From the signonsandiego.com
Allen said the small sailplane added 60 minutes to its endurance by autonomous thermal soaring.
From the sciencedaily.com
Well, if these creative sailplane pilots have their way, that problem will be a thing of the past.
From the techcrunch.com
And how is a sailplane that's landed as reported recovered safely?
From the guardian.co.uk
As a sailplane pilot, I especially appreciate soaring birds.
From the sacbee.com
More examples
Fly a plane without an engine
Glider: aircraft supported only by the dynamic action of air against its surfaces
A glider or sailplane is a type of glider aircraft used in the sport of gliding. Some gliders, known as motor gliders are used for gliding and soaring as well, but have engines which can, in some cases, be used for take-off or for extending a flight. ...
An unpowered, soaring aircraft capable of maintaining level flight for long periods of time after release from tow and of gaining altitude using wind currents, as opposed to a GLIDER.
Another word for a glider, used mainly by Americans. Many, many years ago, it was used to differentiate between those gliders with very poor performance and those capable of soaring. (Soaring is now dependent on the weather and pilot ability.) Top
An unpowered heavier-than-air craft designed primarily for soaring flight.
A motor less craft that can climb using atmospheric forces alone. Referred to interchangeably as a glider.