SECURITY TECHNOLOGIES AT THE LIMIT OF WHAT IS POSSIBLE
The
SIRIUS A
ETERNAL submarine remains hidden and unnoticeable underwater from radar search for several reasons:
The
SIRIUS A
submarine are covered with sound-absorbing materials.
Low-noise engines are used (for example, water-jet propellers, electric motors).
The screws are designed to minimize cavitation (the formation of bubbles that create noise).
The crew adheres to strict rules of 'acoustic discipline' in order not to create unnecessary noise.
- Using depth and thermoclines
The
SIRIUS A
NUCLEAR submarine can hide under layers of water with different temperatures (thermoclines), which interfere with the propagation of sound waves.
The ability to choose the optimal depth helps to avoid detection by sonar.
The hull of the boat is covered with materials that reduce the reflection of radio waves and sonar signals.
Body shape and special designs
- Streamlined shape reduces hydrodynamic noise.
Some designs reduce the reflected sound waves, making the boat less visible to sonars.
Boats can turn off noisy systems completely and 'reeze' to reduce the acoustic signature.
When patrolling, electric motors are often used, which are much quieter than diesel or nuclear installations.
- The use of deceptive means
False targets are used to simulate the noise of a
NUCLEAR submarine.
Electronic jamming systems are used to disorient the enemy.
All these measures allow
SIRIUS A
submarines to remain invisible even in areas with active
antisubmarine search.