Accession Number : ADD014875

Title :   Erodable Spin Turbine for Tube-Launched Missiles.

Descriptive Note : Patent, Filed 25 Mar 83, patented 5 Feb 85,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Thorsted, Kenneth G ; Pennington, John W

Report Date : 05 Feb 1985

Pagination or Media Count : 8

Abstract : This patent discloses 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 a missile in its free-flight trajectory is maintained by airflow over canted fins and canards mounted on the missile's airframe.

Descriptors :   AIR FLOW, AIRFRAMES, ANGLES, CANARD CONFIGURATIONS, EXHAUST GASES, EXITS, FREE FLIGHT, GAS FLOW, GUIDED MISSILES, LAUNCH TUBES, NOZZLES, PATENTS, RATES, SPINNING(MOTION), TORQUE, TRAJECTORIES, TUBE LAUNCHED, TURBINE BLADES, TURBINES

Subject Categories : Guided Missile Traj, Accuracy and Ballistics

Distribution Statement : APPROVED FOR PUBLIC RELEASE