30-mm-Caliber Scram Accelerator RAMAC 30 of ISL

摘要

In France, ISL has performed experiments in a 30-mm-caliber ram accelerator, acalled RAMCAC 30, at superdetonative flight speeds (scram). The results obtained are described and present three novel features: (1) Scram accelaration was achieved in a single stage tube flying in the superdetonative regime from the beginning on using a conventional gun as pre-accelerators for injecting a projectile into the ram tube; (2) Cylindrical projectiles without fins with conical front and back parts were accelerated in a rail tube. In this case, pre-acceleration in a gun without sabot is possible; and (3) Acceleration could be achieved with hydrogen, methane and ethylene based combustible gas mixtures with a stoichiometric ratio of fuel and oxygen.