Patent ID: 6400645
Filing Date: 2002-06-04
Classification: B63B,G01S,G01V,G10K

Abstract:
An active sonobuoy apparatus packaged in a weighted canister for insertion into a water environment, after which said canister pulls free and falls away, comprising:a surface unit including transmitter/receiver equipment for communication with a remote location, and which includes a tether extending downwardly therefrom; a support unit secured to said tether; a plurality of arms, each said arm including a plurality of nested telescopic arm sections; each said arm having a first arm section connected to said support unit and angularly moveable with respect to said support unit; an acoustic projector; each said arm having a last arm section in operative contact with said acoustic projector in a manner such that as said apparatus falls through the water environment, and prior to said canister pulling free and falling away, said acoustic projector causes extension of said nested telescopic arm sections; an arm deployment arrangement for deploying said extended arms to a desired angular position, after said canister pulls free and falls away, and a plurality of receive transducers carried by said deployed arms.