il supersonico risorgerà!

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richelieu
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Re: il supersonico risorgerà!

Messaggio da richelieu » 13 agosto 2018, 9:50

tartan ha scritto:
Potrebbe non essere così difficile ma, di sicuro, sarà per i nuovi faraoni e i loro sgherri ... !
O per qualche futuro nostro Capo di Governo che, come già accaduto, potrebbe invaghirsene ...

:redhotevil:

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flyforever85
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Re: il supersonico risorgerà!

Messaggio da flyforever85 » 14 agosto 2018, 21:08

In America ci sono diversi progetti per rendere il supersonico nuovamente commerciabile.

Boom Supersonic a Centennial (Denver, CO) stanno progettando un aereo supersonico per 55 pax, il biglietto dovrebbe avere il costo di una business class. Dovrebbe volare a Mach 2.2

Aerion: aereo supersonico business jet, Reno, Nevada. Dovrebbe volare a Mach 1.4

Spike: Boston. Dvorebbe volare a Mach 1.6 se non erro. Altro business jet.

Tra tutti, Boom supersonic e' l'unica compagnia che sta iniziando l'assemblaggio del dimostratore tecnologico XB-1. Dicono debba volare entro il 2018 mentre l'aereo ver oe proprio entro il 2025.
"Una volta che avrete conosciuto il volo, camminerete sulla terra guardando il cielo, perchè là siete stati e là desiderate tornare" di Leonardo da Vinci
Immagine

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Re: il supersonico risorgerà!

Messaggio da JT8D » 20 ottobre 2018, 21:48

A proposito di volo supersonico, GE Aviation lancia il propulsore Affinity, che equipaggerà il Business Jet Aerion AS2.

https://www.md80.it/2018/10/20/ge-affin ... fficiente/



Paolo
"La corsa di decollo è una metamorfosi, una quantità di metallo che si trasforma in aeroplano per mezzo dell'aria. Ogni corsa di decollo è la nascita di un aeroplano".


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Re: il supersonico risorgerà!

Messaggio da richelieu » 6 novembre 2018, 10:27

Intanto ..... partono le sperimentazioni della NASA sul contenimento del boom .....

..... "Low-Boom Flight Demonstration" .....

Alex Propeller
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Re: il supersonico risorgerà!

Messaggio da Alex Propeller » 6 novembre 2018, 10:38

Il nuovo X-plane, costruito per ricerche sul trasporto supersonico...
Ovviamente il contratto sarà di LM sezione ADP (Skunk Works) per un dimostratore manned costruito per raccolta dati.

https://www.nasa.gov/lowboom/new-nasa-x ... egins-now/
If it looks ugly, it will fly the same.

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Re: il supersonico risorgerà!

Messaggio da richelieu » 14 gennaio 2019, 15:00

Nuovi studi di Boeing .....
Boeing Studies Morphing Low-Boom SST .....
Graham Warwick - AW&ST - 14 Jan. 2019

Progress has been made in designing supersonic aircraft to minimize sonic boom, and Lockheed Martin is building a flight demonstrator for NASA, the X-59A QueSST, that aims to achieve a muted boom of around 75 PNLdB, compared with 110 PNLdB for the Concorde.
The reduced noise level is achieved by shaping the airframe to modify the sonic-boom signature.
This prevents shockwaves from the aircraft coalescing as they propagate through the atmosphere into strong bow and aft shocks that form an N-wave signature and produce the classic “double-bang” boom.
Shaped signatures are sinusoidal and create a sonic “thump” rather than a boom.
But the airframe shape is optimized for the design cruise condition, and off-design, when operating at a different Mach number of angle of attack (AOA), the boom signature will change.
In a low-boom design, there are airframe-shaping features that would look abnormal on a subsonic aircraft but are critical to controlling the shockwaves and preventing them coalescing.
In designs such as the X-59, these bumps are fixed.

Immagine
Analysis indicates that a shape-memory morphing surface under the nose could make the forward part of a low sonic boom more robust.
Credit: Boeing


Boeing is investigating whether shape-memory alloys (SMA) could be used to change the outer mold line (OML) of the aircraft, actively altering local surface geometry to make a low-boom design more robust over a wider range of operating conditions.
“OML shapes matter and flight conditions matter, and low-boom aircraft are optimized for a specific cruise condition,” Boeing engineer David Lazzara said at the SciTech conference.
“We are looking at SMA actuation to morph the surface and move away from a constant, single OML.”
Using NASA’s 25D low-boom configuration, Boeing led work to investigate off-design performance and identify where morphing surfaces could be located to make the design more robust.
The team assessed the boom at different perturbations of Mach number and AOA away from the design point.
“Off-design, most of the time the boom will degrade,” says Lazzara.
“And small changes can have a pronounced impact on the boom at ground level. Analysis showed that Mach perturbations have the most effect on the forward half of the boom signature and AOA changes on the aft half.”
“This helped us choose which part of the vehicle to look at,” he says.
The areas on the signature that had the highest sensitivity turned out to be under the nose and a broad area under the rear of the wing and around the overwing engine inlet.
Further optimization work is planned.
The project is being conducted under NASA’s University Leadership Initiative program.
Boeing’s partners include Texas A & M University, Utah State University, Florida International University, University of Houston, University of North Texas, Princeton University, ATA Engineering and Fort Wayne Metals.
.

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Re: il supersonico risorgerà!

Messaggio da JT8D » 5 febbraio 2019, 20:45

Boeing ha annunciato oggi una partnership con Aerion Corp., per lo sviluppo del Business Jet supersonico AS2:

https://www.md80.it/2019/02/05/boeing-p ... personico/

Paolo
"La corsa di decollo è una metamorfosi, una quantità di metallo che si trasforma in aeroplano per mezzo dell'aria. Ogni corsa di decollo è la nascita di un aeroplano".


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Re: il supersonico risorgerà!

Messaggio da flyforever85 » 5 febbraio 2019, 21:14

A novembre sono stato ad una breve conferenza presieduta dalla NASA a in cui hanno parlato il portavoce di Aerion e il portavoce di Boom Supersonic. Entrambi sono super pompati per i nuovi progetti e non li biasimo, pero' bisognera' vedere prima cosa succedera' con la FAA. Il progetto sperimentale portato avanti dalla NASA volera' prima degli altri e verra' usato per misurare la percezione del disturbo dovuto al boom sonico sulla popolazione statunitense. In caso questo esperimento non dovesse mostrare risultati incoraggianti, sara' un po' un casino e non e' stato chiaro cosa faranno Aerion e Boom in quel caso.
Boom ha appena terminato un altro ciclo di raccolta fondi e ha raggiunto il notevole traguardo di $100 milioni.
https://robbreport.com/motors/aviation/ ... n-2837888/

Oltre ad Aerion e Boom c'e' Spike Aerospace http://www.spikeaerospace.com/

E' interessante vedere come Boeing stia investendo nel supersonico e nell'energia verde allo stesso tempo (vedi Zunum).
"Una volta che avrete conosciuto il volo, camminerete sulla terra guardando il cielo, perchè là siete stati e là desiderate tornare" di Leonardo da Vinci
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Re: il supersonico risorgerà!

Messaggio da richelieu » 19 giugno 2019, 10:01

Da Parigi ... il dimostratore XB-1 di Boom Technology effettuerà il suo primo volo con alcuni mesi di ritardo ...

Immagine
Boom Technology has pushed the first flight of its XB-1 demonstrator back to 2020, as it works with Japan Airlines on its planned Overture airliner.
Boom chief executive Brett Scholl says the XB-1 – which is one-third the size of the Overture – will be rolled out in December 2019, about six months later than previously planned.
He attributed the decision to a safety enhancement.
"Whenever it comes to safety and schedule, safety comes first," he says.
"Earlier this year, we found there was an opportunity to enhance the safety profile of the [XB-1] aircraft by including a stability augmentation system, to give us additional margin at high speed and at take-off and landing."
... flightglobal.com ... "​PARIS: Boom XB-1 schedule slips, while JAL eyes Overture" ...

BOOM ... https://boomsupersonic.com/ ...
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Re: il supersonico risorgerà!

Messaggio da JT8D » 19 giugno 2019, 21:48

Articolo a riguardo sul Portale, dal nostro inviato a Le Bourget :wink: :

https://www.md80.it/2019/06/18/boom-sup ... fine-2019/

Paolo
"La corsa di decollo è una metamorfosi, una quantità di metallo che si trasforma in aeroplano per mezzo dell'aria. Ogni corsa di decollo è la nascita di un aeroplano".


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Re: il supersonico risorgerà!

Messaggio da andwork » 20 giugno 2019, 7:33

richelieu ha scritto:Da Parigi ... il dimostratore XB-1 di Boom Technology effettuerà il suo primo volo con alcuni mesi di ritardo ...
He attributed the decision to a safety enhancement.
"Whenever it comes to safety and schedule, safety comes first," he says.
"Earlier this year, we found there was an opportunity to enhance the safety profile of the [XB-1] aircraft by including a stability augmentation system, to give us additional margin at high speed and at take-off and landing."

ho come un dejavu.... MCAS 737 MAX..

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Re: il supersonico risorgerà!

Messaggio da richelieu » 26 giugno 2019, 9:15

"Si torni ad attraversare l'Atlantico in tre ore!"
E' un'esortazione che viene dagli ambienti presidenziali USA ...
Michael Kratsios is deputy assistant to the president for technology policy at the White House and President Trump’s nominee for chief technology officer of the United States.
Fifty years ago, the first Concorde prototype roared over the 28th International Paris Air Show, initiating a supersonic era that enabled flight from New York to London in just over three hours.
Four years later, in 1973 — only 70 years after the Wright brothers first took to the skies — the Concorde made its debut transatlantic journey.
This exciting era of civil supersonic flight, however, would last only 30 years.
Supersonic flight has largely remained dormant since the Concorde’s final flight in 2003.
Today, that same New York-to-London flight takes about seven hours.
While technology flourished since 1973, we’re still traveling by air at about the same speeds that we were before landing men on the moon.
Fortunately, we are now seeing a change in course.
... washingtonpost.com ... "We used to fly from New York to Paris in 3 hours. Let’s do that again" ...
.

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Re: il supersonico risorgerà!

Messaggio da richelieu » 27 giugno 2019, 18:33

E c'è anche LM ...
Lockheed Martin is considering how to build a commercial supersonic aircraft that would draw on the noise-reduction technology it is testing with NASA, making it the latest company aiming to create a market for travel faster-than-sound travel.
The quiet supersonic technology airliner (QSTA) concept Lockheed Martin announced on 19 June at the American Institute of Aeronautics and Astronautics Aviation Forum is still at the beginning of the design process.
The Skunk Works division of Lockheed Martin in Palmdale, California is building the X-59 test aircraft for NASA in a separate project.
The QTSA would be larger than the X-plane with capacity for 40 people, measuring 69m (225ft) long with a 22m wingspan.
... flightglobal.com ... "Lockheed Martin adds momentum for supersonic travel" ...
.

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Re: il supersonico risorgerà!

Messaggio da Valerio Ricciardi » 29 giugno 2019, 8:32

La domanda è: a parte le importanti, se non importantissime, ricadute tecnologiche di quanto si farebbe per arrivare a sviluppare un nuovo supersonico civile che ovviamente nelle intenzioni sarebbe più avanzato del Concorde e del TU144, su tratte che ora son di sei sette ore in concreto a cosa servirebbe?

Già oggi andare da Roma a Milano e ritorno in giornata è possibile in 2h55' in treno (l'ho fatto per accompagnare all'stituto Veronesi - :( - un caro amico), ma è una cosa da farsi se proprio ne hai davvero necessità, anche per un business man che senso avrebbe partire alle 7,30 con precedente alzataccia per arrivare all'aeroporto e fare il check in che per voli simili di alto valore simbolico non potrebbe chiudersi certo trenta minuti prima... solo per mettere una firma su un contratto importante in un ufficio a Manhattan a mezzogiorno e qualcosa se tutto va bene e poi reiniziare un'ammazzata simmetrica per tornare indietro a Mach 2,2?

E' semplicemente ridicolo. C'è la PEC, la firma digitale, la doppia crittografia per i documenti... senza parlare nemmeno della possibilità di partecipare ad una riunione in teleconferenza sotto forma di ologramma parlante (visto con i miei occhi OLTRE DIECI ANNI FA nella c.d. "bolla di Renzo Piano" sopra al Lingotto, gli Agnelli già da tempo partecipavano alla maggior parte delle riunioni dal proprio ufficio privato... compariva un ologramma parlante di IMPRESSIONANTE realismo al loro posto attorno al tavolo ovale).

Sull'ELR, invece, come un Londra-Sidney, allora capirei. E non solo per il business, semplicemente per pax da non tenere chiusi dentro un aereo un periodo do tempo da trombosi venosa.
Ma i costi?
"The curve is flattening: we can start lifting restrictions now" = "The parachute has slowed our rate of descent: we can take it off now!"
Chesley Burnett "Sully" Sullenberger

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Re: il supersonico risorgerà!

Messaggio da richelieu » 26 dicembre 2019, 22:36

Aerion fa un ulteriore passo avanti ... e seleziona altri fornitori ...

... flightglobal.com ... "Aerion selects more suppliers for in-development supersonic business jet AS2" ...

:usa2:

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Re: il supersonico risorgerà!

Messaggio da richelieu » 26 aprile 2020, 0:07

Nuova mossa di Aerion ...
Supersonic business jet company Aerion will manufacture its in-development AS2 transport aircraft at a new facility in the Florida city of Melbourne, in the heart of the state’s aerospace cluster.
The company, currently based in Reno, intends this year to begin constructing in Melbourne a “global headquarters and integrated campus for research, design, build and maintenance” of the AS2, Florida governor Ron DeSantis’ office says on 24 April (*).
Aerion’s media representative confirms the plan.


... flightglobal.com ... "Supersonic jet maker Aerion to build manufacturing site in Florida" ...

(*) ... flgov.com ... "Governor Ron DeSantis Announces Aerion Supersonic Will Move Global Headquarters to Florida" ...

:usa2:

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richelieu
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Re: il supersonico risorgerà!

Messaggio da richelieu » 16 maggio 2020, 9:35

Intanto ... il dimostratore di Boom Supersonic fa progressi ...

... flightglobal.com ... "Boom mates supersonic XB-1’s wings with fuselage" ...

:usa2:

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Re: il supersonico risorgerà!

Messaggio da richelieu » 21 maggio 2020, 10:34

Anche Aerion Supersonic fa le sue mosse ...
With an eye on bringing a civil supersonic business jet to market around the 2026 timeframe, Aerion Supersonic is laying the groundwork to shift from a design firm to a manufacturer with the selection of Melbourne, Florida, as the site of its new factory and the firming up of a final design of the aircraft.
Aerion in late April announced it would break ground later this year on a $300 million facility at Florida’s Melbourne International Airport (MLB) to serve as the home for production of its Mach 1.4, 12-place AS2 trijet.
This announcement came as Aerion firmed up what the company believes is the final design configuration for the airplane, adopting a new look that sports a delta-shaped wing, revamped empennage, and new elongated nacelle shape that Aerion said incorporates new materials and technologies, yet provides a design that could ensure the business jet meets timeline and production requirements.

... ainonline.com ... "Aerion Paving Path To Bring AS2 to Market" ...

:usa2:

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Re: il supersonico risorgerà!

Messaggio da richelieu » 21 maggio 2020, 21:31

GE Aviation comunica ...
GE Aviation has now officially shipped its first engine for NASA’s X-59 QueSST (short for Quiet SuperSonic Technology), an experimental piloted aircraft designed to fly faster than sound, cruise at 55,000 feet yet generate significantly less noise than previous supersonic aircraft such as the SST or Concorde.

... blog.geaviation.com ... "QueSST for Success: Fly in Half the Time" ...

:usa2:

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Re: il supersonico risorgerà!

Messaggio da richelieu » 8 giugno 2020, 8:14

Un'opinione ...

... flightglobal.com ... "NASA boom reduction project should be left to private sector" ...

:usa2:

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richelieu
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Re: il supersonico risorgerà!

Messaggio da richelieu » 8 giugno 2020, 14:58

Intanto ... vi sono quesiti per i quali si attende una risposta ... ma non prima del prossimo anno ...
Despite the use of advanced design tools, the team developing NASA’s X-59 Quiet Supersonic Technology (QueSST) demonstrator cannot be sure it will meet their “low-boom” goals until the jet actually breaks the sound barrier in flight.
Although design features that reduce sonic booms are understood, the team faces the challenge of ensuring that the X-59 QueSST retains its unique boom-softening shape while in flight.
It is also unclear how sound from the jet will move through the atmosphere.
Those questions will be answered through flight testing, which the team expects will begin in autumn 2021.
“When you get a real aircraft in a real atmosphere, there’s a lot of variables that are difficult to model,” says Craig Nickol, manager of NASA’s Low-Boom Flight Demonstrator project, the effort behind X-59.
“How that signature propagates through the atmosphere becomes difficult to predict.”
But Nickol and partners at Lockheed Martin think the X-59 will prove that supersonic aircraft can have acceptably soft booms, possibly leading to a supersonic air travel renaissance.

... flightglobal.com ... "NASA and Lockheed to begin X-59 supersonic jet tests in 2021" ...

:usa2:

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Re: il supersonico risorgerà!

Messaggio da richelieu » 22 giugno 2020, 21:01

Motore Affinity ... GE Aviation rivela qualche dettaglio ...
GE Aviation this week provided a glimpse into design challenges that the company is working through as it progresses on the twin-shaft, medium-bypass Affinity engine selected to power the Aerion AS2 supersonic business jet.
Aerion Supersonic and GE announced plans in October 2018 to move forward with the Affinity for the AS2, saying it would be designed using a “proven engine core adapted from GE’s commercial airline portfolio” with the latest technology full authority digital engine control, an advanced twin-fan, durable combustor, and advanced acoustic technology that would meet or exceed regulatory requirements.
While GE has not specified beyond saying the engine pulls from its commercial engine core expertise, it is believed to borrow from the CFM56.
But GE does say the Affinity adopts features from its new Passport business jet engine such as the front fan blisks and slimline composite core ducting.
Anticipated to be part of a family in the 16,000- to 20,000-pound-thrust range, the Affinity will be certified to operate at altitudes up to 60,000 feet and capable of providing efficient super and subsonic transport.

... ainonline.com ... "GE Tackling Environmental Challenges with Affinity Engine" ...

... geaviation.com ... "The Affinity Supersonic turbofan" ...

:usa2:

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Re: il supersonico risorgerà!

Messaggio da richelieu » 22 giugno 2020, 23:40

Arrivano i Russi ...
Russian researchers start drawing up new supersonic jet concept ...

By David Kaminski-Morrow (22 June 2020)

Russian researchers have embarked on preliminary investigations into development of a civil supersonic aircraft, nearly four decades after the Tupolev Tu-144 programme ended.
The work is being undertaken by the Zhukovsky Institute, a federal collective national research organisation which includes several centres – among them the Central Aerohydrodynamic Institute, the Central Institute of Aviation Motors, and the Siberian Aeronautical Research Institute.
This organisation has been established to co-ordinate research into new developments and technologies in the aviation sector.

Immagine
Source: Zhukovsky Institute
While a formal design has yet to be revealed, this concept has been floated


Director general Andrei Dutov says the creation of a commercially-successful supersonic aircraft is a “big challenge” for the industry.
“It is necessary to find effective solutions to the problems of high levels of noise and sonic shock, increase the fuel efficiency of powerplants, and reduce harmful emissions,” he says.
“It’s too early to talk about the cost of the new aircraft. But it will, of course, be more expensive than its subsonic counterparts.”
Dutov says the intention is to draw up a concept and a comprehensive programme for creating the aircraft, including gathering scientific and technical resources, enabling manufacturers to start technical design work as early as 2022.
The preliminary research is part of a state contract reached with the Russian trade and industry ministry running to the end of 2021.
Few details of the proposed aircraft have emerged, but initial illustrations indicate twin-tailed configurations with centrally-mounted engines are being examined.
Dutov says the aircraft would need to cruise at some 1,100kt (2,000km/h), else it would have few advantages over subsonic designs.
As well as leading to the emergence of new technologies, the institute suggests a business version of the aircraft, with fewer passengers, would open new markets.
Crucial to the development of a supersonic aircraft would be efforts to mitigate noise while overflying populated areas – an issue which plagued the Aerospatiale-BAC Concorde programme – and this could require trade-off with the aerodynamic design.
New engine development, combining high thrust with economic efficiency, will be necessary.
US firm Aerion has been developing its own supersonic civil aircraft, the AS2, which it has been aiming to fly by 2024.
The manufacturer claims it has developed a technology enabling a “boomless cruise”, enabling it to fly without creating a sonic boom.
Another US developer, Boom Supersonic, has also been progressing with its own supersonic airliner design, designated Overture, with a demonstrator programme known as the XB-1.
The aircraft has a low-mounted delta-wing configuration, in contrast to the high-wing layout of the AS2.
Fonte: FlightGlobal ...
.

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richelieu
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Re: il supersonico risorgerà!

Messaggio da richelieu » 29 luglio 2020, 19:24

Aerion Supersonic ... espande le collaborazioni ...

Immagine

... ainonline.com ... "Aerion Forms Partnership with Jetex" ...

... ainonline.com ... "Spirit Aero To Expand Work on Aerion Supersonic AS2" ...
.

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Re: il supersonico risorgerà!

Messaggio da richelieu » 31 luglio 2020, 8:56

"Overture" ... potrebbe sembrare musica lirica ... ma non lo è ...

Immagine
Boom Supersonic and Rolls-Royce have entered into a so-called engagement agreement to explore the pairing of a Rolls-Royce propulsion system with Boom's proposed supersonic passenger aircraft called Overture, the companies announced Thursday.
In a statement (*), Boom said the agreement calls for the companies to work together to identify the propulsion system that would complement Boom's Overture airframe.
Apart from studies associated with matching the engine and airframe, the teams will also examine certain “key” aspects of the propulsion system, the statement said.


... ainonline.com ... "Boom, Rolls-Royce Ink Overture Collaboration Pact" ...

(*) ... "Boom Supersonic and Rolls-Royce Agree on New Collaboration for Supersonic Overture Engine Program Design" ...
.

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Re: il supersonico risorgerà!

Messaggio da richelieu » 2 agosto 2020, 19:08

Il dimostratore sperimentale supersonico X-59 della NASA sarà sprovvisto di finestrino frontale ...
In addition to testing sound signatures of new supersonic airplanes, NASA’s X-59 Quiet Supersonic Technology (QueSST) experimental demonstrator is breaking ground in another area: flight without a forward-facing window.
The NASA/Lockheed Martin X-plane will come with an eXternal Vision System (XVS) in lieu of a forward-facing window.
The technology already has been tested in NASA’s Beechcraft King Air UC-12B (*) in preparation for the X-59’s first flight in 2021.
XVS uses real-time imagery from two externally mounted cameras that are overlayed with terrain data on a 4K monitor in front of the pilot, NASA said.

... ainonline.com ... "NASA X-Plane Provides New Vision" ...

(*) ... nasa.gov ... "Testing of X-59 Virtual Forward Window Successful" ...

:usa2:

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Re: il supersonico risorgerà!

Messaggio da richelieu » 4 agosto 2020, 0:40

Nuovo ingresso nella competizione per la realizzazione di un futuro velivolo supersonico civile ...
Virgin Galactic, which includes its manufacturer of advanced air and space vehicles, The Spaceship Company, has revealed the initial designs for its high speed vehicle and has signed non-binding memorandum of understanding with Rolls-Royce to collaborate in designing and developing engine propulsion technology for high-speed commercial aircraft.
The initial designs for the high-speed aircraft, which would travel at three times the speed of sound (Mach 3), show it would be expected to carry nine to 19 people at an altitude above 60,000 feet and would also be able to incorporate custom cabin layouts to address customer needs.
The innovative aircraft design also aims to help lead the way toward use of sustainable aviation fuel.

... virgin.com ... "Virgin Galactic reveals initial vehicle design for high speed travel"...

Stante la situazione ... penso proprio sia ora il caso di affermare con convinzione ... "Il supersonico risorgerà!" ...
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richelieu
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Re: il supersonico risorgerà!

Messaggio da richelieu » 5 agosto 2020, 19:15

A proposito di Virgin Galactic ... un commento da AINonline ...

... "Virgin Galactic Unveils Plans for Mach 3 Commercial Jet" ...

Invece ... per quanto riguarda la Russia ...

... "Russia Moves Forward on Supersonic Development" ...

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