(мор.) складаний рушій, гвинт
negative thrust propeller / negative-thrust propeller
folding knife
folding portable bridge
folding-fin aircraft rocket (FFAR)
folding bipod
folding leaf spring
folding leg
folding screw adjustment rear sight
folding shield
folding sight leaf
folding trigger
folding stock (folded stock)
folding-stock anchor
side-folding stock
under-folding stock
folding ladder
folding strut
folding step
folding-rotor convertiplane
folding
back-folding
adjustable metallic folding blade sight assembly
adjustable metallic folding, short-range blade sight assembly
drive line / drive (propeller) shaft
propeller aeroplane
propeller shaft (drive shaft)
propeller-driven
turboprop propeller
propeller blade
front axle propeller shaft
front rear axle propeller shaft
flanking propeller