Exatem
Guest
First flight of the solar.
President, what do you say?
President, what do you say?
Er Presidente
Guest
and incredible how there are people who dedicate a life to achieve seemingly little renumerative goals.
Unfortunately we live in a cynical world that does not appreciate the true spirit of these real pioneers.
Exatem
Guest
I read that it has a wingspan of 80m, like an airbus 380 and that weighs 2000 kg. against the 560.000.
the project was born in 2003 and it took 7 years to reach the result of 87 minutes of flight.
they are just to be considered pioneers since for a practical application it will be necessary to wait who knows what technological developments. . .
This is a nice picture I found on the net.
the project was born in 2003 and it took 7 years to reach the result of 87 minutes of flight.
they are just to be considered pioneers since for a practical application it will be necessary to wait who knows what technological developments. . .
This is a nice picture I found on the net.
MBT
Guest
I've been thinking about something like this but "hybrid." . .
Would it be possible for you? ? ?
other question for experts
Given the recent advances in the field of the turbodisel, you think it is utopia to think of a medium/long-range tourism plane that instead of turbofan uses a nice turbodiesel quadrimotor with propeller? ? ?
Would it be possible for you? ? ?
other question for experts
Given the recent advances in the field of the turbodisel, you think it is utopia to think of a medium/long-range tourism plane that instead of turbofan uses a nice turbodiesel quadrimotor with propeller? ? ?
MBT
Guest
I figured... But you know, we start with that and then we see how the batteries evolve.. .
absolutely true
but I wondered whether a pair of v12biturbodiesel with propeller or a pair of turbofan rr Trent or gp7000 is preferable at consumption. .
Er Presidente
Guest
the turbodiesel could be competitive on half-mw units, up to 4/6mw the turboprop has numbers, plus the turbofan kingdom.
attention that a turbodiesel must be able to give 500 kw practically indefinitely, then a normal motor of automotive derivation (only light enough) should be heavily revised in the declaration of maximum power and in rotation regimes.
MBT
Guest
Got it. .
therefore also the next breaths that will touch me to do will always be with an underfloor buzz and no peaceful bottle of pistons.. .
sin. . .
Exatem
Guest
from wiki:the project promoters are bertrand piccard, andré borschberg, luigino torrigiani and brian jones.
bertrand piccard, in particular, is the son of jacques piccard, the first (and only) man to descend on the bottom of the pit of the Marians, undertaking accomplished aboard the batiscafo Triesteteor "when the extremes touch"
bertrand piccard, in particular, is the son of jacques piccard, the first (and only) man to descend on the bottom of the pit of the Marians, undertaking accomplished aboard the batiscafo Triesteteor "when the extremes touch"
Exatem
Guest
small disgression in style "over and under the waves":
auguste picard, which despite the name was of Austrian or Swiss origin (depending on sources), in the early 1900s sought the way to bring man to explore the marine abyss. for this reason, in 1952 he went to the yards san marco of trieste where, thanks to the participation of the steelworks terni and the navalmeccanica of castellammare, he could work to the construction of his batiscafo. the idea was to bring two men to explore unreachable depths to normal underwater means allowing them to move independently, without the bond of a connection to a surface ship. the idea was realized in the batiscafo “trieste”. It was a cylinder of 18 meters long, 3,5 displaced 150 tons wide, surmounted by an access tower and a tunnel that connected it to the cabin of the crew. a ball of 2,16 meters in diameter. This sphere was fitted to allow the life of two people regardless of the surface and, through a plexiglass cone, an external vision was possible thanks also to quartz lamps capable of resisting pressures of 1000 atm. breathing air was treated by sodium lime cells that eliminated carbon dioxide and the system was powered by batteries. the society of the pits of terns became interested in realizing the sphere. Two semispheres, forged and tempered in oil, of a thickness of 12.7 cm, were made to withstand a pressure of more than 1.25 tons per cm2. only the ball weighed 13,000 kg. the upper cylinder, which had to guarantee the push reserve without “bearing”, had to be filled with a liquid that compensated for the external pressure. gasoline was chosen for its qualities of incompressibility even at high pressures and its density lower than that of water. 85 m3.
the hull was built in monfalcone by the assembled yards of the Adriatic at the end of 1952 and was joined to the sphere at the castellammare yards of stabia. the tests were carried out in the waters of capri on 26 August 1953. the dive took place thanks to 9 tons of iron balls hooked to the hull through electromagnets that in case of avary to the electrical system, they would have guaranteed the emersion escaping.
after a series of trial and testing dives, in 1956 the Trieste reached 3,800 meters in the Gulf of Napoli consecrating the success of the Italian naval industry.
but the limited economic resources and the will to develop the project, pushed towards the cession of the batfoil. So in 1958, for $250,000, the Americans bought the boat and took it to America. the hull was strengthened, a new sphere was created and, on 23 January 1960, the trieste was put at sea off the island of guam, in the Pacific Ocean. the crew consisted of picard son and lieutenant donald walsh of us navy. after 4 hours and 48 minutes, the trieste reached altitude -10,917 meters with an external pressure of 1.187 kg/cm2.
This record has never been repeated with the presence of crew since the only two submarines who tried, the kaiko and the nereus, were devoid of personnel on board.
