FIELD: engines and rockets. SUBSTANCE: system is designed for closing hole of channel, particularly, hole of channel delivering air into combustion chamber of ramjet engine. Proposed system contains glass shutter and breaking device with projectile capable of breaking the shutter and controlled ejector for said projectile installed out of the limits of channel being orientated to provide aiming of projectile on shutter. Moreover, system contains ramjet engine and rocket. Such design of system for closing hole in channel and ramjet engine and rocket provide effective opening of channel hole at definite moment and completely free the channel after opening of said hole. EFFECT: improved operation. 11 cl, 2 dwg
