abhik wrote:^^^
INS Kalvari?
vina wrote:Just getting the paperwork done and do the tendering will take alteast 3 months. Doubt the Navy's timeline of 2018 to get it back into service as a frontline capital ship.
Rakesh wrote:Singha is bang on. Use MDL to build ships and subs, but get the Navy out of there. Move it all to Karwar which as per the article below is the largest naval base east of the Suez Canal.
Austin wrote:https://twitter.com/SandeepUnnithan/status/806053996230152192
Why we should worry. Three of most serious naval accidents in the past 5 yrs have been in the naval dockyard, Mumbai. 1 sq km area.
K_Rohit wrote:Rakesh wrote:Singha is bang on. Use MDL to build ships and subs, but get the Navy out of there. Move it all to Karwar which as per the article below is the largest naval base east of the Suez Canal.
Where is the space in Karwar. It has just one jetty, which is almost completely occupied by Vik
Philip wrote:This supposed to be the first time in the history of naval annals that such an accident has happened.Some dubious record!
An explosion occurred during refueling of the submarine K-431 at Chazhma Bay, Vladivostok. The K-431, completed around 1965 as unit K-31, was a Project 675 (Echo II) class submarine with two pressurized water reactors, each 70 MWt capacity and using 20% enriched uranium as fuel. (Note that some sources confuse this submarine with K-314, a Project 671 or Victor I class submarine launched in 1972 and withdrawn from service after a reactor accident in December 1985.) On 10 August 1985, the submarine was being refueled at the Chazhma Bay naval facility near Vladivostock. The submarine had been refueled and the reactor tank lid was being replaced. The lid was laid incorrectly and had to be lifted again with the control rods attached. A beam was supposed to prevent the lid from being lifted too far, but this beam was positioned incorrectly, and the lid with control rods were lifted too far up. At 10:55 AM the starboard reactor became supercritical, resulting in a criticality excursion of about 5x1018 fissions and a thermal/steam explosion. The explosion expelled the new load of fuel, destroyed the machine enclosures, rupturing the submarine's pressure hull and aft bulkhead, and partially destroyed the fuelling shack, with the shack's roof falling 70 meters away in the water. A fire followed which was extinguished after 4 hours, after which assessment of the radioactive contamination began. Most of the radioactive debris fell within 50-100 meters of the submarine, but a cloud of radioactive gas and particulates blew to the northwest across a 6-km stretch of the Dunai Peninsula, missing the town of Shkotovo-22, 1.5 km from the dock. The contaminated forest area was later surveyed as 2 square km in a swath 3.5 km long and 200-650 meters wide. Estimates initial radioactive release was about 2 MCi of noble gases and 5 MCi of other fission products, but most of this was short-lived isotopes; the estimated release inventory one hour after the accident was about 1000 Ci of non-noble fission products. In part because the reactor did not contain spent fuel, the fraction of biologically active isotopes was far smaller than in the case of the Chernobyl reactor accident.
Ten naval personnel were killed (8 officers and 2 enlisted men), probably by the explosion itself and not from radiation injuries. Radiation injuries were observed in 49 people, with 10 developing radiation sickness; the latter figure included mostly firefighters, some of whom sustained doses up to 220 rad external and 400 rem to the thyroid gland. Of the 2,000 involved in cleanup operations, 290 were exposed to high levels of radiation compared to normal standards.
High-level waste gathered during clean-up operations were placed in temporary disposal sites. Due to the rapid decay of most of the reactor products and the cleanup operations, some dockyard facilities were able to resume operations four days later. About two months post-accident the radioactivity in water in the cove was comparable to background levels, and 5-7 months post-accident the radiation levels were considered normal throughout the dock area. The damaged submarine was towed to Pavlovsk Bay and berthed there.
A major nuclear incident was narrowly averted at the heart of Britain's Royal Navy submarine fleet, The Independent on Sunday can reveal. The failure of both the primary and secondary power sources of coolant for nuclear reactors at the Devonport dockyard in Plymouth on 29 July last year followed warnings in previous years of just such a situation.
Military chiefs have launched a major investigation after a Royal Navy warship accidentally fired a torpedo at a nuclear dockyard. HMS Argyll was moored at Devonport Naval base in Plymouth when the 9ft missile suddenly shot out of its starboard side during a training drill. Workers watched in disbelief as the tube-shaped projectile flew through the air before blasting a hole in a security fence and slamming into a storage container. The torpedo was an unarmed version used for testing drills so it merely thudded into the metal container and did not explode. Nobody was hurt but shocked Navy bosses ordered an urgent investigation into the incident that took place inside a high security area where Britain's nuclear submarines are refuelled and repaired.
Vendetta's career commenced with an accident even before she was commissioned. On 18 July 1958, whilst leaving her berth at Williamstown Dockyard, she rammed the dry dock caisson gates, and remained trapped there for five hours. Disaster was only narrowly averted The frigate, Quickmatch, was under refit in the drydock, and if the dock gates had collapsed, she would have been swept aside by the torrent of water. Dockyard workers reacted swiftly to the emergency by flooding the dock, thus taking the pressure off the weakened caisson.
December 5, 1965 / A-4 / At Sea, Pacific: An A-4 aircraft loaded with one nuclear weapon rolled off the elevator of a U.S. aircraft carrier and fell into the sea. The pilot, aircraft, and weapon were lost. The incident occurred more than 500 miles from land.
Pakistani midget submarine (2 Jan 1977)
03/17/45: A new submarine floods and sinks after a worker opens a torpedo tube at the Boston Navy Yard.
vina wrote:But none of them are mistakes. They are all perfectly correct .
1. The ship is INDEED like a whale. They are supported by buoyancy along the entire length and while the structure is also designed that way (you will tend to match the weight at that any particular point with the bouyancy). The ship's skin IS a shell (exactly like an egg shell) . If you support a ship by putting the blocks at the wrong point,it will simply punch through the shell!
vina wrote:The ship's skin IS a shell (exactly like an egg shell).
The hull structure was evolved to give a robust design with all shell and No 1 deck plating being above 10 mm
Bismarck was found to be resting upright at a depth of approximately 4,791 m (15,719 ft),[137] about 650 km (400 mi) west of Brest. The ship struck an extinct underwater volcano, which rose some 1,000 m (3,300 ft) above the surrounding abyssal plain, triggering a 2 km (1.2 mi) landslide. Bismarck slid down the mountain, coming to a stop two-thirds down.[138]
Ballard added "we found a hull that appears whole and relatively undamaged by the descent and impact".
The mortal remains of sailor Ashutosh Pande, who lost his life in the INS Betwa mishap in Mumbai, were consigned to flames with full military honours at his hometown here. His body was brought by a Navy plane to Dhana airstrip near here and then was taken to his home in Sadbhavna Nagar in a military vehicle for the last rites. His kin and a large number of people were present for the cremation which took place on the 10th Battalion cremation ground yesterday.
shiv wrote: Ships are not whales any more than seminal fluid and urine are the same because they come out of the same place
Aditya G wrote:tsarkar/maz, any news of Cadet Training Ships under order with ABG? Or the OPVs with Pipavav (Reliance)?
“The corporate debt restructuring (CDR) process vis-à-vis ABG Shipyard is in place and money has been pumped into the company. The yard has resumed work on the cadet training ships and has now promised to deliver the first in late-2016,” Vice-Admiral Sunil Lanba, heading the Southern Naval Command, the Training Command of the Navy, told The Hindu in an interview.
tsarkar wrote:Philip wrote:This supposed to be the first time in the history of naval annals that such an accident has happened.Some dubious record!
Did you research the annals of naval history before coming to the conclusion?
When I read your post, I decided to research the history of Naval Dockyard Accidents. Is IN incompetent? How does its record compare vis-a-vis other navies?
Sanju wrote:Rishi Verma, TSarkar is ex-IN.
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