self noise discussion
Hello captains, had a look to the self noise values of some new vessles i want to discuss with you.
At first, i don't know if the value itself has a unit. If it is [dB] its not a linear one.
212A=110
Lada=115
Akula2=120
Astute=108
688i=116
seawolf=110
Virginia=107
Yansen=108
when i look to these values i think some reletions are a bit strange.
The modern SSN's all outclass their conventional (electric) couterparts.
My basic sub tech knowledge told me, that the latest conventional boats should be more silent than the nuclear ones. less movin parts in the power transmit and so on. Their (SSN's) biggest advantage over top modern conventional boats is the endurance and speed.
But that a seawolf, Virginia, Astute and Yansen should be more silent than a.g. an 212A class...i really doubt.
If i'm complettely wrong, enlighten me :-)
what do you think?
greetings
wastel
|