Abstract: A parachute-type safety lowering or descent system (10) for helicopters or other types of hovering aircraft includes a rotor hub assembly (12) to which is secured to the top thereof a parachute housing (14), for containing the safety lowering parachute, through means of a dual set of vertically spaced ball bearings (52, 58) for rotationally isolating the parachute housing (14) from the induced rotation effects of the hub rotor assembly (12) under normal aircraft operating conditions. In an emergency, however, such as, for example, in the case of a rotor, rotor blade, rotor hub assembly, or rotor drive engine failure, malfunction, fracture, or separation, the safety lowering parachute will be deployed whereupon the entire weight load of the aircraft will be borne by the safety parachute.