What is "sailplane"

Usage examples of "sailplane".

This was the easiest entrance to Elysium, and the air above the rim swarmed with fliers, orthopters, and sailplanes.

Soaring Gliderport in Julian, Pennsylvania launches sailplanes into ridge lift much of the year.

It contained big ten-wheel-drive Bobtail sand trucks, hoverjeeps, a half-dozen late-model tankseven a small air force of jethoppers, sailplanes, and a black-painted orbital vehicle.

He had flown sailplanes on Earth, and would always vividly remember his first solo landing.

Christ Jesus, hang gliders and sailplanes would still fly too, wouldn't they?