Updates on the search for KRI Nanggala — Part 2
Until this morning no any signs of KRI Nanggala 402.
The police now also plan to join the search for the submarine. They will send 4 boats and an unmanned underwater vehicle/remotely controlled underwater drone. I can not find that SRV-08M ROV, but i just wonder why the police needs to have a ROV that can reach 300 meter. Maybe in case a car drives into a channel or harbour and the police try to find it at 300 meter depth!
Drone bawah air (rov) robotic operator vehicle type srv-08m atau kamera bawah air milik Polri memiliki kemampuan bisa menyelam 300 meter.
www.inews.id
8. The TNI AL conducted a sweep in the northern waters of Bali, which was the last location of the submarine before contact was lost. The search was focused on nine points in an area of 18.52 kilometers, which is about 40 kilometers north of Celukan Bawang Port. The suspected location of the submarine is based on an oil spill and the detection of a strong magnetic force, in the TNI AL’s air and naval search efforts.
(a) The naval search is being carried out by 21 ships and boats including from 2 submarines (namely, KRI Alugoro and KRI Rigel), which are using their sonar to look for the missing submarine. In addition, there are four vessels from the police (namely, Gelatik, Enggang, Barata, and Balam); and these police vessels also carry a basic ROV and have a limited two-dimensional sonar, that is being used for the search. Four ships belonging to the National SAR Agency are also deployed in support of the TNI AL search effort.
(b) Except for the ROV, the Indonesian police and National SAR Agency, both don’t have the right deep water search equipment — it is likely that they are what I consider as shallow water specialists (when compared to the gear being brought in by the Americans and Singaporeans). The Americans have flown in high end specialist equipment in 3 C-17s from Dover Air Force Base, with watercraft and underwater search and rescue gear to assist with
ongoing efforts to locate the submarine.
9. By today, the Americans, the Australians, the Malaysians and Singaporeans would have joined the deep water search and rescue efforts — even before the Malaysians arrive on Sunday, they would be in communications with the TNI AL task group commander on where to search and tools to use.
(a) Malaysia’s MV Mega Bakti is expected to arrive at search location some 60nm north off Bali island on 25 Apr 2021 (Sun), says a press release issued by the Malaysian Defence Ministry. Among the equipment carried by Malaysia’s MV Mega Bakti is the remotely operated intervention vehicle (IROV) with an operating depth of 650 metres and two, six-men decompression chambers.
(b) Singapore’s MV Swift Rescue will arrive today and the 2017 video below demonstrates its capabilities, including that of the organic DSRV onboard a 44 man decompression system, and a 1,000 metres capable
remotely operated vehicle system (Deep ROV). If by a miracle a rescue occurs, and there is not enough high dependency beds on MV Swift Rescue (to treat all 53 sailors) — and the RSN would need all the help we can get from other ships.
10. While spare O² candles can help extend time to rescue, CO² build up at 5,000 ppm starts to cause dizziness in the crew; and at 40,000 ppm asphyxiation. 53 people in the submarine breathing-in and breathing-out over 90 hrs or more will cause the atmosphere to be deadly, unless CO² is scrubbed. By the time the Indian SCI Sabarmati arrives early next week (Tuesday or later), it will be a search and locate effort (and no longer a rescue effort); which is why they are exploring the possibility of flying in their second DSRV and other deep water search gear. Their efforts should be recognised.