Abstract: An erodable spin turbine having a plurality of turbine blades affixed to the outer periphery of a missile nozzle. When the missile is fired in its launch tube the exhaust gas stream flows across the turbine blades to impart an angular torque to the missile as it traverses the launch tube. As the missile traverses the launch tube the exhaust gas stream is also eroding the spin turbine such that when the missile exits the launch tube the missile has reached its terminal spin rate and the spin turbine is effectively eroded so that it no longer interacts with the exhaust gas stream. The spin rate of the missile in its free-flight trajectory is maintained by airflow over canted fins and canards mounted on the missile's airframe.

Abstract: An anchoring system comprising a pointed anchor body having either a wire apped therearound in one embodiment thereof or a coiled wire disposed within a hollow portion of the anchor body in a second embodiment thereof. One end of the wire is fixed to the pointed end of the anchor body and the other end projects through a pusher plate at the other end of the anchor body, behind which is an explosive or propellant charge for actuating the anchor. When the charge is ignited the anchor body is driven out of the charge housing, which is configured to retain the pusher plate, causing the wire to unwind as the anchor body embeds itself.