A descent device is provided for emergency descent from tall structures and for lowering objects from high elevations, such as a hovering helicopter. The device includes a rotating spool having a cable wound thereon for descent and a rotation-retarding vane member which rotates in a fluid cylinder. An adjustable bypass is provided for the fluid as the vane member rotates therein so that the speed of descent can be adjustably controlled.
Emergency descent device
19.04.1977
Sonstige
Keine Angabe
Englisch
NTIS | 1975
|Emergency slow descent device for unmanned aerial vehicle
Europäisches Patentamt | 2024
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