Experimente an Regenerativwaffen mit Flüssigtreibstoffantrieb

Pressure oscillations are analyzed by using firing data of regenerative liquid propellant test fixture guns. The caliber 28-mm, 30-mm, and 40-mm guns employed yield relatively large pressure fluctuations with nitromethan or hydroxylammonium nitrate monopropellants injected by various pistons. Comparatively, the caliber 20-mm regenerative test fixture guns results in smooth pressure curves when firing nitromethane based monopropellants. Tailoring of the pressure-time history yields higher performance. The projectile launch velocity is increased by about 200 m/s when compared to a conventional 20-mm solid propellant gun.