Answer:

gliders

AnswerCrossword Clue
GLIDERSGulls, at times
GLIDERSQuiet craft
GLIDERSEngineless planes
GLIDERSPorch furniture
GLIDERSAir transport auxiliaries.
GLIDERSPlanes.
GLIDERSSimplest aircraft.
GLIDERSPorch furniture.
GLIDERSAircraft.
GLIDERSLawn furniture.
GLIDERSSailplanes.
GLIDERSAircraft
GLIDERSKin of porch swings
GLIDERSOnes powerless to move?
GLIDERSQuiet planes