Don't worry about the German Type 212A start frame. This is about US Virginia SSNs.
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- 4 minutes in - Development at Electric Boat, Groton, computer-aided design
- 5 min, 28 sec - simulation of an underwater explosions against the submarine hull
- 6m 10s - launch of USS Texas (SSN-775) in 2005
- 6m 30s - on board sensors continuously monitor the air supply. Turning seawater into clean air.
- 8m - Uses HY100 pressure hull steel
- 8m 22s - Russia's supercavitating nuclear armed (?) Shkval torpedo threat.
- 9m - seeing and hearing enemy first is the key.
- 9m 44s - simulated firing of a Mark 48 torpedo.
- 11m - Possibly aided by US intel gathering the US was developing a "Barracuda"
supercavitating torpedo answer to the Shkval rocket powered torpedo in the early 2000s? The
Barracuda "outruns its own sound waves" so is silent to the target submarine's sensors.
[Comment: But the Barracuda's noise may deafen its own on-board sonars! Maybe the Barracuda
torpedo was shelved(?). Or maybe the US is quietly relying on stocks of old or improved VLS or
torpedo tube launched nuclear SUBROCs as revenge rockets?]
- 13m - If stealth means wanting to be "a hole in the water" maybe anti-sub sensors may be looking
for that atypical of sea conditions hole?
- 13m 40s - the (radar, sonar and optical) vulnerability of conventional subs (old and new) that
need to surface or snort to take in air for their loud diesels to recharge their batteries.
- 15m 20s - Vivid illustration of the sonar research that goes on in the lakeside Bayview, Idaho,
Acoustic Research Detachment (see earlier Submarine Matters'article)
- 17m 55s - the anechoic tiles/layer placed on the outside (and sometimes inside) submarine hull
- 18m 20s - uses of the subs sonars
- 19m 10s - location of the sub's sonar arrays
- 20m - the spherical bow sonar array being able to hears ships "1,000 miles" away. Ends.
Pete