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Why the USS Thresher (SSN 593) Was Lost
Buch von Bruce Rule
Sprache: Englisch

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Beschreibung
The US nuclear submarine THRESHER (SSN-593) was lost because standard compensation procedures to adjust for hull compression during the deep-dive on 10 April 1963 were not followed. Consequently, THRESHER was heavy (negatively buoyant) at test-depth (1300 feet) and unable to deballast because adiabatic cooling froze moisture in the air-lines to the ballast tanks, blocking those lines.
Operation of the Reactor (Main) Coolant Pumps in FAST (2-pole mode) may have contributed to a reactor scram (shut-down) and loss of propulsion at 0909.0R (local time). THRESHER sank at an average rate of 120ft/min from test-depth (1300-feet) at 0909.0R to collapse at 09:18:24R at a depth of 2400-feet (1070 psi) in 1/20th of a second, too fast to be cognitively recognized by those aboard who - although they knew collapse was imminent - never knew it was occurring.
The Navy Court of Inquiry (COl) dismissed the results of their own test which established conclusively that flooding at test-depth - the COI's assessed cause of the disaster - would have been a catastrophic

event and would not have been reported by THRESHER to her escort ship, the USS SKYLARK (ASR 20), at 0913R as "experiencing minor difficulties." Multiple lines of evidence - discussed in detail by Chapter

1 of this assessment - confirm there was no flooding prior to collapse of the pressure-hull at great depth.
The US nuclear submarine THRESHER (SSN-593) was lost because standard compensation procedures to adjust for hull compression during the deep-dive on 10 April 1963 were not followed. Consequently, THRESHER was heavy (negatively buoyant) at test-depth (1300 feet) and unable to deballast because adiabatic cooling froze moisture in the air-lines to the ballast tanks, blocking those lines.
Operation of the Reactor (Main) Coolant Pumps in FAST (2-pole mode) may have contributed to a reactor scram (shut-down) and loss of propulsion at 0909.0R (local time). THRESHER sank at an average rate of 120ft/min from test-depth (1300-feet) at 0909.0R to collapse at 09:18:24R at a depth of 2400-feet (1070 psi) in 1/20th of a second, too fast to be cognitively recognized by those aboard who - although they knew collapse was imminent - never knew it was occurring.
The Navy Court of Inquiry (COl) dismissed the results of their own test which established conclusively that flooding at test-depth - the COI's assessed cause of the disaster - would have been a catastrophic

event and would not have been reported by THRESHER to her escort ship, the USS SKYLARK (ASR 20), at 0913R as "experiencing minor difficulties." Multiple lines of evidence - discussed in detail by Chapter

1 of this assessment - confirm there was no flooding prior to collapse of the pressure-hull at great depth.
Details
Erscheinungsjahr: 2017
Genre: Geschichte, Importe
Rubrik: Geisteswissenschaften
Medium: Buch
Inhalt: Gebunden
ISBN-13: 9781608881680
ISBN-10: 1608881687
Sprache: Englisch
Einband: Gebunden
Autor: Rule, Bruce
Hersteller: Nimble Books LLC
Verantwortliche Person für die EU: Libri GmbH, Europaallee 1, D-36244 Bad Hersfeld, gpsr@libri.de
Maße: 286 x 221 x 8 mm
Von/Mit: Bruce Rule
Erscheinungsdatum: 31.12.2017
Gewicht: 0,442 kg
Artikel-ID: 111189056
Details
Erscheinungsjahr: 2017
Genre: Geschichte, Importe
Rubrik: Geisteswissenschaften
Medium: Buch
Inhalt: Gebunden
ISBN-13: 9781608881680
ISBN-10: 1608881687
Sprache: Englisch
Einband: Gebunden
Autor: Rule, Bruce
Hersteller: Nimble Books LLC
Verantwortliche Person für die EU: Libri GmbH, Europaallee 1, D-36244 Bad Hersfeld, gpsr@libri.de
Maße: 286 x 221 x 8 mm
Von/Mit: Bruce Rule
Erscheinungsdatum: 31.12.2017
Gewicht: 0,442 kg
Artikel-ID: 111189056
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