Chinese submarines have long been dogged by noise issues but military experts say there have been improvements with technological advances, including pump-jet design. Photo: Reuters
Chinese submarines have long been dogged by noise issues but military experts say there have been improvements with technological advances, including pump-jet design. Photo: Reuters
Science

China’s submarines can be quieter, more powerful with new pump-jet: scientists

  • Shanghai research team says its new propulsion system can deliver higher thrust while reducing noisy vibrations by more than 90 per cent
  • Scientists say they have identified a sealant to keep water outside duct without impeding rotor movement but the exact nature of material is classified

Chinese submarines have long been dogged by noise issues but military experts say there have been improvements with technological advances, including pump-jet design. Photo: Reuters
Chinese submarines have long been dogged by noise issues but military experts say there have been improvements with technological advances, including pump-jet design. Photo: Reuters
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