Nova americka letelica na 20 Mach brzine

..Yet despite the aircraft’s potentially revolutionary role — and despite the tens of millions of dollars poured into the Falcon program every year — Darpa was somewhat cavalier in its first test of HTV-2. The HTV-2 has an unusual, wedge shape; think of it like a 13,000 mph slice of deep-dish pizza. In theory, the shape should provide more lift. But few people had flown anything quite like the HTV-2 at these intense speeds before....

..The Defense Department is pursuing three different families of technologies to accomplish the task. One is to rearm nuclear intercontinental ballistic missiles with conventional warheads. But that runs the risk of accidentally triggering a response from another atomic power, who might mistake it for a nuke. Oops..

tdjokic: A u Avganistanu gube rat na mnogo manjoj brzini, recimo brzini helikoptera ili Hamvija.

Igor Gajic: Test let je samo dan posle porinuca prvog Kineskog(Ruskog) nosaca aviona.

U sustini ovo je USofA odgovor na kinesku raketu Dong Feng 21D koju jos nazivaju i ubicom nosaca aviona.

Sa brzinom 20 maha nemoguce je presresti. Boom i ode nosac aviona, dovoljno je imati i 100kg exploziva, sama kineticka energija letilice je ogromna.

bojan_bozovic: Ne zato što ne mogu da pobede, već zato što ratuju fer. Hitler bi bacao atomske bombe na te Talibane.

Moguće je presresti, samo je potrebna brzina. Najbolje laserom, svakako, ali ne mora.

Shadowed: Hirosima i Nagasaki? Pa, bili su gradovi na drugoj strani planete za koje bih rekao da nemaju bas mnogo veze sa ratom u Avganistanu.

tdjokic: (Ona moja primedba i diskusija koja se razvila oko toga je Off topic, izvinjavam se)
Kako da nemaju kad je jedna od strana ista ona koja je na H&N vec bacila A-bombe a druga strana je nalik na americkog protivnika u Vietnamu. Vrlo srodne teme. Inace, nisam ja spomenuo prvi A-bombe ovde.

US military officials have lost contact with the fastest plane ever built during a hypersonic test flight over the Pacific on Thursday.

The Falcon HTV-2 was launched aboard a rocket from Vandenberg air force base in California, on what at first appeared to be a flawless mission.

But after separating from the rocket at the edge of space and beginning its return to Earth, the aircraft went silent during the gliding stage of the test flight, when it was due to perform a series of manoeuvres as it hurtled through the atmosphere.

Officials at the US Defence Advance Research Projects Agency (Darpa) announced they had lost communication with the speeding craft at 4.21pm BST, 36 minutes into the flight.

The unmanned "hypersonic technology flight" had been expected to reach a top speed of Mach 20, or 13,000 mph, and withstand temperatures of 2,000C caused by the ultrafast flow of air around the aircraft.

At that speed, the plane could travel from London to Sydney in less than an hour and cross the US mainland, from New York to Los Angeles, in 12 minutes.

The plane was born from a Darpa plan called Prompt Global Strike, which sought to give military commanders the ability to strike targets anywhere in the world within an hour. Had the project worked, the Falcon HTV might have replaced intercontinental ballistic missiles.

The loss of the hypersonic aircraft is a serious setback for engineers trying to perfect the art of flying at such spectacular speeds.

In April last year, the first Falcon test flight, HTV-1, ran into trouble after nine minutes when computers picked up a glitch and steered the aircraft into the sea as a safety precaution.

Darpa only built two Falcon prototypes and has no plans to manufacture any more. This test flight was their last shot at success before the project is considered for closure.

Had the latest test flight gone to plan, the Falcon HTV-2 would have separated from its rocket high above the atmosphere and entered a steep dive before levelling out and performing a series of subtle manoeuvres to test its aerodynamic performance. At the end of the flight the plane would have rolled upside down and steered a graceful arc into the ocean.

Engineers had hoped the flight would provide crucial information on the plane's performance, including the resilience of its carbon composite body and navigation systems supposed to keep it on course as it moved at almost four miles per second.

bojan.javorac:.. vjerovatno su samo htjeli da odgovore Kini na nosac aviona...

bojan.javorac:
Ameri necete se spasiti, suvise ste zla posijali u svijetu.. zadesice vas sudbina Hitlerove Njemacke koja je vazila za najjacu silu na svijetu u svom vremenu..

bojan.javorac:
jos tad je Hitler imao letjelice oblika poznatog kao NLO i izpod ledenih pokrivaca na polu svoje baze

Da, sigurno su hteli da odgovore na doradjen i preradjen stari ruski nosac aviona...

3way: Nije.

Duzina 300m, par metara manje nego USofA nosac aviona, ali sa 'odskocnom daskom', tako da i tezi avioni mogu da polete sa njega.

bojan.javorac:To sto bakrotiraju najvise ih boli i sto vide da pred njima bukvalno pucaju od razvoja Kina, Rusija(lol) i ostale sile svijeta.. pa pokusavaju na bilo koji nacin da prikazu i da ugrabe jos malo vremena prije nego ih Kinezi pregaze..
Ameri necete se spasiti, suvise ste zla posijali u svijetu..