Measuring 204 meters (699 ft) in length, the #Colossea #mega-#yacht is an #itinerant #floating #docking #station for a #detachable #airship The #project is a #tribute to the #N1 airship (later renamed #Norge) which took off for its first test #flight from #Rome the #1st #March #1924. Colossea as for #Colossus of the #sea’s, features a detachable airship upper-structure. In fact, the top part of the yacht, works as housing of the airship. On the Colossea yacht, the airship reimagines its #iconic #design with the #materials and #technologies of today, proposing the same measurements of the 1924's model with upgraded materials, layout and #propulsion Entirely conceived to be built in #carbonfiber from the internal structures to the exterior #blimp surface, the airship will be moved by 8 #electric engines, with its upper structure comprising a take-off/landing area shaped to the blimp’s form. When the #captain decides that it’s time for flight, the yacht follows the procedures to #unlock the electromagnetic blocks that keep the airship mounted, unhook the winches to release the airship’s lift. The concept pays homage to the Norge, a semi-rigid #Italian-built airship that, with an overflight on 12 May #1926, completed the first verified trip of any kind to the #NorthPole, as well as being the first #aircraft to fly over the #polar ice cap between #Europe and #America. In the #expedition was the #brainchild of polar #explorer and leader Roald Amundsen, the airship's designer and #pilot Umberto Nobile and the wealthy American #adventurer and explorer Lincoln Ellsworth who, along with the #Aero Club of #Norway, financed the trip, which was known as the Amundsen-Ellsworth 1926 Transpolar Flight. Inside Colossea’s blimp, 22 isolated compartments host various installations such #LH2 tanks (liquid #hydrogen) batteries, cabins, and all internal structures. The overall volume of the carrier gas compartments have 30,000 mc which grants the aircraft enough space to release sufficient H2 into any compartment. The LH2 is released into the compartments to adjust the weight balancing needed and also as #H2 reserve in case of gas loss. The same LH2 is devoted to supplying the necessary energy requirement of each engine, capable of pushing the flying vessel to an estimated maximum speed of 165 km/h (about 90 knots), while the Yacht instead is pushed from 4 HTS engines to a maximum speed of 22 knots. Likewise, airship propellers can increase and support the efficiency of the sailing. Colossea share the commander cabin of the airship to maneuver the yacht in the water and the airship in the sky, otherwise the yacht will be piloted separately from the deck below. The yacht features a large patio deck from where it is possible to access to the airship that leans on the top and is fixed to the yacht through a hermetic border which anchors and lock the airship to the yacht. The new airship with 10,000kg of payload and armament can now accommodate up to 24 passengers (plus 10 crew members), though instead, the yacht offers 22 dislocated guest suites and multiple deck with pools on the rear part for a total load capacity up to 44 guests and 20 crew members.