Glider
Glider , noun
1.
One who, or that which, glides.
2.
a heavier-than-air flying machine similar to an airplane, but without an engine. It is typically towed to a high altitide by a powered aircraft and then glides to earth with no other source of power.
3.
a type of seat used on porches or in gardens, which is mounted on a frame so that it may glide forward and backward.