Calculation of the mode of braking of a broken mine stand by a jet parachute

Abstract

The idea of a jet parachute, the braking force of which is created by the reaction of a gas jet flowing through one or more nozzles from a chamber containing a certain amount of compressed gas, was proposed by A. P. Herman. P. Herman. However, despite a number of undoubted advantages of this system over the known systems of mine parachutes it was not theoretically justified and applied in practice ...