u/Own-Obligation-7331

Analog: Canon EOS 300X, Canon EF 24-70mm f/2.8 II USM, Kodak Gold 200
Digital: Canon EOS R5mkII, Canon RF 24-105mm f/4 L IS USM

Didier Delsalle did it in 2005 with a stripped-down AS350 B3, but would it be possible, using today's technology, to develop a helicopter that could do it easily with fully loaded and no modification to the aircraft?

Images: https://verticalmag.com/features/landing-everest-didier-delsalle-recalls-record-flight/

Royal Clipper is a steel-hulled five-masted fully rigged tall ship used as a cruise ship. She was redesigned by Robert McFarlane of McFarlane ShipDesign, for Star Clippers Ltd. of Sweden, the same designer behind the cruise company's first two vessels Star Clipper and Star Flyer.

This third one was built using an existing steel hull designed by Zygmunt Choreń that was modified by the Gdańsk Shipyard, where 24 metres (79 ft) was added to its length. Originally built by Polish communist authorities as "Gwarek" she was intended as a floating vacation home for miners. This hull was sold because of financial problems. The Merwede shipyard completed the ship's interior in July 2000, whilst visiting the Pool of London, for its pre-launch to the travel industry. The renovations included frescography murals by Rainer Maria Latzke completing the ship's Mediterranean interior Her design was based on Preussen, a famous German five-mast Flying P-Liner windjammer built in 1902.

Star Clippers claims that she is the largest "true sailing ship" built since Preussen. She is listed in Guinness World Records as the largest square-rigged ship in service, with 5,202 square metres (55,990 sq ft) of sail. Her sails can be handled with a crew as small as twenty using powered controls.[3]

Royal Clipper cruises the Mediterranean during the summer. During the winter she offers Caribbean trips through the southern parts of the Lesser Antilles area. Because of her size, she can visit smaller ports that larger (motor) cruise ships can't reach. Transatlantic crossings are available between seasons.

Source: https://en.wikipedia.org/wiki/Royal_Clipper

Flore (S 645) was a Daphné-class submarine of the French Navy. Launched in 1960, it was in service from 1964 to 1989, primarily operating in the Mediterranean Sea. Since 2010, Flore has been used as a museum ship at the Lorient Submarine Base.

Submarines of the Daphné class in French service measured 57.75 metres (189 ft 6 in) long overall with a beam of 6.76 m (22 ft 2 in) and a draught of 5.25 m (17 ft 3 in). They had a standard displacement of 700 metric tons (690 long tons), and displaced 869 t (855 long tons) surfaced and 1,043 t (1,027 long tons) submerged. The submarines had a double hull and had a complement of 6 officers and 39 sailors.

Each vessel of the class was fitted with two SEMT-Pielstick diesel engines, with two 450-kilowatt diesel generator sets, and two electric motors turning two shafts creating 750 kilowatts (1,000 shp) sustained with the ability to create 970 kW (1,300 shp) for short periods. The first seven boats were given the SEMT-Pielstick 12 PA1 diesel engine type, while the final two hulls were given the SEMT-Pielstick 12 PA4-135 type. The submarines had a diving depth of 300 m (980 ft) and could remain at sea for 30 days. Daphné-class submarines had a maximum speed of 13.5 knots (25.0 km/h; 15.5 mph) surfaced and 16 knots (30 km/h; 18 mph) submerged with a range of 4,300 nautical miles (8,000 km; 4,900 mi) at 7.5 knots (13.9 km/h; 8.6 mph) while snorkelling.

The submarines were equipped with twelve torpedo tubes, eight located in the bow and four located in the stern. The submarines was armed with twelve 550-millimetre (21.7 in) torpedoes and no reloads. Each submarine sported one DRUA 33 radar and DUUA 1 sonar. Beginning in 1971, the boats were modernized and given the DUUA 2B search and attack sonar located in a dome situated atop the bow. They also received the updated DLT D3 torpedo fire control system. The submarines also mounted DSUV 2 passive sonar and DUUX 2 acoustic telemeter.

Source:
https://en.wikipedia.org/wiki/French_submarine_Flore
https://en.wikipedia.org/wiki/Daphné-class_submarine

In the San Giorgio Maggiore church the exhibition Barry X Ball:  The Shape of Time can be visited for free

Le Redoutable (S 611) was the lead boat of her class of ballistic missile submarines in the French Marine nationale.

Commissioned on 1 December 1971, the boat was the first French SNLE (Sous-marin Nucléaire Lanceur d'Engins, "Device-Launching Nuclear Submarine"). The boat was initially fitted with 16 M1 MSBS (Mer-Sol Balistique Stratégique) submarine-launched ballistic missiles, delivering 450 kilotons nuclear warheads at 2,000 kilometres (1,200 mi). In 1974, the boat was refitted with the M2 missile, and later with the M20, each delivering a one-megatonne warhead at a range over 3,000 kilometres (1,900 mi). Le Redoutable ("formidable" or "fearsome" in French) was the only ship of the class not to be refitted with the M4 missile.

Le Redoutable had a 20-year duty history, with 51 patrols of 70 days each, totalling an estimated 90,000 hours of diving and 1.27 million kilometres (790,000 mi) of distance, the equivalent of travelling 32 times around the Earth.

The boat was decommissioned in 1991. In 2000, the boat was removed from the water and placed in a purpose-built 136 metres (446 ft) dry dock,[2] and over two years was made into an exhibit. This was a monumental task, the biggest portion of which was removing the nuclear reactor and replacing the midsection with an empty steel tube. In 2002, the boat opened as a museum ship at the Cité de la Mer maritime museum in Cherbourg-Octeville, France, being now the largest submarine open to the public[2] and the only nearly-complete ballistic missile submarine hull open to the public — although several museums display small portions, such as sails and/or parts of rudders from such submarines. Special dinner events for organizations aboard this boat's interior spaces are offered by Cité de la Mer.

Source: https://en.wikipedia.org/wiki/French_submarine_Redoutable_(S611)

For the first part see: https://www.reddit.com/r/submarines/comments/1vdwugc/oc_italian_submarine_enrico_dandolo_s_513_21/

Enrico Dandolo (S 513) was an Italian submarine of the Toti class, built in the 1960s and decommissioned in the 1990s. It is now on display at the Venice Arsena is one of three submarines preserved as museum ships in Italy.

History

Under the terms of the post-World War II armistice, Italy was barred from possessing submarines. Once those restrictions expired, the Italian Navy resumed work on a submarine project, resulting in the Toti class, laid down at Italcantieri in Monfalcone in 1965. The class was designed with anti-submarine capabilities and served throughout the Cold War. The class comprised four boats: Toti, Bagnolini, Dandolo, and Mocenigo.

Enrico Dandolo (SSK 513), the third submarine of the class and the third Italian Navy vessel to bear this name, was built by Italcantieri in Monfalcone. She was laid down on March 10, 1967, launched on December 16 of that year, delivered to the Italian Navy on September 29, 1968, and decommissioned on September 30, 1996.

Since 2002 she has been housed at the Venice Arsenal as a museum ship.

Name

This was the second submarine and third Italian Navy vessel to carry the name Enrico Dandolo, honoring the Venetian Doge who led the Republic of Venice during the Fourth Crusade.

Symbol

The Dandolo's unofficial emblem has always been the Playboy bunny. The reason is unknown, but the bunny's silhouette regularly appeared on the submarine's sail.

Service

Over her career, the Dandolo logged 24,700 hours of operation and covered 122,500 nautical miles. Her crew, numbering between 26 and 30, was divided into two or three watch teams depending on mission length and specialization. Some missions followed a 4-on/4-off schedule — four hours on watch, four hours' rest in a shared "hot bunk" — while others followed a 4-on/8-off schedule, with three sailors sharing two bunks.

Before the introduction of the A184 in 1974, the Toti-class boats — including the Dandolo — were armed with earlier Whitehead-designed torpedoes: the straight-running G7e, derived from a Second World War design, and the G6e, repurposed in the mid-1950s into a hybrid anti-submarine system known as the G62ef Canguro (Kangaroo). In this configuration, the wire-guided G6e acted as a 'mother' carrier vehicle, steered from the submarine toward the target area; upon arrival, it released a modern, US-built Mark 44 lightweight torpedo as its payload, which then actively homed in on the target itself.

The distinctive bulbous bow, nicknamed the "nose," housed the echo-sounder system that formed the sonar's active component, while the hydrophone array — the passive system — was mounted lower in the forward hull, just below the torpedo tubes. The passive system was the primary means of target detection.

Source:
https://it.wikipedia.org/wiki/Enrico_Dandolo_(S_513)
https://www.torp.esrc.unimelb.edu.au/bib/P00002937.htm
https://en.wikipedia.org/wiki/A184_torpedo