Miloch <Miloch_member@newsguy.com> wrote in
news:qb2phk0303j@drn.newsguy.com:
> more at
> https://www.thedrive.com/the-war-zone/27931/u-s-navy-stops-looking-for-
> japans-crashed-f-35-fighter-that-remains-largely-unrecovered
>
> The U.S. Navy says it has concluded its support of search and recovery
> efforts related to a Japan Air Self-Defense Force F-35A Joint Strike
> Fighter that crashed off the coast of that country last month. The
> Japanese are continuing to look for parts of the plane, including its
> flight data recorder, as well as the pilot, who remains missing.
>
> The Navy's 7th Fleet made the announcement on May 8, 2019. At that
> time, the service's only assets aid in the search and recovery
> operation were a salvage team on board a chartered deep sea
> construction vessel, Ultra Deep Solutions' Van Gogh. Between Apr. 9,
> 2019, when the F-35A first went missing, and Apr. 17, 2019, the
> Arleigh Burke-class destroyer USS Stethem and a pair of P-8A Poseidon
> maritime patrol aircraft had also contributed to the search efforts,
> collectively covering a total area of more than 5,000 square nautical
> miles. A U.S. Air Force U-2 Dragon Lady spy plane had also conducted
> at least one sortie over the area and it is not clear if that service
> is still assisting with the search and recovery missions.
>
> The salvage team on Van Gogh had deployed the Cable-controlled
> Undersea Recovery Vehicle 21, or CURV-21, a remotely operated vehicle,
> to survey the seabed near where searchers had already found debris.
> This is a 6,400-pound system that can operate at depths up to 20,000
> deep. It has its own sonar to help detect objects of interest and
> still and full motion video cameras to gather imagery. Operators can
> equip it with various tool and grabbing arms as required to actually
> manipulate or recover objects it finds. The Navy had also deployed the
> CURV-21 in 2017 to help search for the submarine ARA San Juan after
> its tragic accident.
>
> The naval salvage unit had also brought a Towed Pinger Locator 25, or
> TPL-25. Dragged behind a ship, this system can reportedly detect pings
> from certain emergency systems on aircraft at depths of up to 25,000
> feet. The CURV-21 would have been able to further investigate any
> signals the TPL-25 picked up.
>
> ----
>
> Though Japanese and American officials have downplayed the concerns,
> the downed F-35A remains a potential security risk. Joint Strike
> Fighters are made with classified materials and sensitive
> manufacturing science. Even small parts could just offer valuable
> industrial intelligence.
>
> There is a possibility that other foreign actors, such as Russia or
> China, could seek to locate the crash site or related debris fields
> and retrieve portions of the stealth fighter, which could offer
> valuable intelligence. Russia just recently added to its already
> particularly extensive fleet of special projects submarines capable of
> deep-sea work, including the possible ability to deploy their own
> manned and unmanned deeper-diving submersibles.
>
> Debris has already come to the surface, including the aircraft's tail,
> too. As time goes on, currents could take that very far from the
> initial crash site. This could all complicate any decision to declare
> an end to the search and recovery efforts without securing the
> majority of the plane. Japanese authorities have not yet given any
> firm date for when the mission will end.
>
> The U.S. Navy, however, has clearly decided that its services are no
> longer required.
>
If they can find something as small as Mercury capsule
with 1990's technology, well........
Liberty Bell 7 capsule raised from ocean floor
July 20, 1999
MIAMI, Florida (CNN) -- Almost 38 years to the
day since it sank, the Liberty Bell space capsule
is now above water, according to a dispatch from
a reporter aboard its recovery ship.
The Mercury capsule, flown by astronaut Gus Grissom
for 15 minutes in space on July 21, 1961, was hoisted
to the surface at 2:15 a.m. Tuesday from the bottom
of the Atlantic Ocean. It was found at a depth of
more than 15,000 feet -- 3,000 feet deeper than the
wreck of the Titanic.
http://www.cnn.com/TECH/space/9907/20/grissom.capsule.01/
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