Minotaur IV / HTV-2b -- 10.08.2011 -- Ванденберг

[instml]

А где прямую трансляцию можно смотреть?

Картинки не будет

[Space Alien]

А где прямую трансляцию можно смотреть?

Картинки не будет

жаль ...    а откуда знаете, что "Есть отделение HTV2 от РН" вы где то читаете?

[instml]

Тут http://twitter.com/DARPA_News

[ronatu]

Начинается самое интересное...

Pull up was much more interesting :wink:

[Space Alien]

Тут http://twitter.com/DARPA_News

ясно    спасибо!

[Space Alien]

а там новости сами обновляются или надо страничку перезагружать?   :idea:

[instml]

а там новости сами обновляются или надо страничку перезагружать?   :idea:

Обычно пишет - одно новое сообщение появилось, нужно будет кликнуть чтобы само сообщение прочитать.

[Salo]

Сами, но вот только новостей нет пока...

[Space Alien]

а там новости сами обновляются или надо страничку перезагружать?   :idea:

Обычно пишет - одно новое сообщение появилось, нужно будет кликнуть чтобы само сообщение прочитать.

Понятно

[Space Alien]

Сами, но вот только новостей нет пока...

жаль ...  :roll:  но ведь скоро появяться ...  

[Salo]

Вряд ли они будут радостными для DARPA.

[Salo]

DARPA_News DARPA  
Range assets have lost telemetry with #HTV2. More to follow
55 сек назад

[Salo]

http://www.forbes.com/feeds/ap/2011/08/11/technology-us-hypersonic-glider_8618679.html

US hypersonic glider launched, contact lost[/size]
Associated Press, 08.11.11, 11:36 AM EDT

LOS ANGELES -- The U.S. Defense Advanced Research Projects Agency says contact with its experimental hypersonic glider was lost after launch from Vandenberg Air Force Base on the central California coast.

The agency says in Twitter postings that its unmanned Falcon Hypersonic Technology Vehicle-2 was launched Thursday atop a rocket, successfully separated from the booster and entered the mission's glide phase.

The agency says telemetry was subsequently lost, but released no details..

A similar vehicle was launched last year and returned nine minutes of data before contact was prematurely lost.

The small aircraft is supposed to maneuver through the atmosphere at 13,000 mph before intentionally diving into the ocean.

The U.S. military is trying to develop technology to respond to threats around the globe at speeds of Mach 20 or greater.[/size]

[Salo]

Downrange assets did not reacquire tracking or telemetry. #HTV2 has an autonomous flight termination capability. More to follow.

[mefisto_x]

опять неудача потеря связи http://vz.ru/news/2011/8/11/514217.html

[Salo]

http://www.darpa.mil/NewsEvents/Releases/2011/2011/08/11DARPA_HYPERSONIC_VEHICLE_ADVANCES_TECHNICAL_KNOWLEDGE.aspx

August 11, 2011

HTV-2 collects unique data during several phases of second flight [/size]

Today, DARPA attempted to fly the fastest aircraft ever built.  The Agency's Falcon Hypersonic Technology Vehicle 2 (HTV-2) is designed to fly anywhere in the world in less than 60 minutes.  This capability requires an aircraft that can fly at 13,000 mph, while experiencing temperatures in excess of 3500F.  The second test flight began with launch at 0745 Pacific Time.  The Minotaur IV vehicle successfully inserted the aircraft into the desired trajectory.  Separation of the vehicle was confirmed by rocket cam and the aircraft transitioned to Mach 20 aerodynamic flight.  This transition represents a critical knowledge and control point in maneuvering atmospheric hypersonic flight.  More than nine minutes of data was collected before an anomaly caused loss of signal.  Initial indications are that the aircraft impacted the Pacific Ocean along the planned flight path.

"Here's what we know," said Air Force Maj. Chris Schulz, DARPA HTV-2 program manager and PhD in aerospace engineering.  "We know how to boost the aircraft to near space.  We know how to insert the aircraft into atmospheric hypersonic flight.  We do not yet know how to achieve the desired control during the aerodynamic phase of flight.  It's vexing; I'm confident there is a solution. We have to find it."

"Prior to flight, the technical team completed the most sophisticated simulations and extensive wind tunnel tests possible.  But these ground tests have not yielded the necessary knowledge.  Filling the gaps in our understanding of hypersonic flight in this demanding regime requires that we be willing to fly," said DARPA Director Regina Dugan. "In the April 2010 test, we obtained four times the amount of data previously available at these speeds.  Today more than 20 air, land, sea and space data collection systems were operational.  We'll learn. We'll try again. That's what it takes."

According to Schulz, three technical challenges exist within this HTV-2 flight regime.  They are categorized as aerodynamic; aerothermal; and guidance, navigation and control.  And each phase of flight introduces unique obstacles within these areas.

"To address these obstacles, DARPA has assembled a team of experts that will analyze the flight data collected during today's test flight, expanding our technical understanding of this incredibly harsh flight regime," explained Schulz.  "As today's flight indicates, high-Mach flight in the atmosphere is virtually uncharted territory. "

In the coming weeks, the assembled independent Engineering Review Board will review and analyze the data collected. This data will inform policy, acquisition and operational decisions for future Conventional Prompt Global Strike programs—the goal of which, ultimately, is to have the capability to reach anywhere in the world in less than one hour.[/size]

[ZOOR]

http://www.space.com/12607-darpa-launches-hypersonic-glider-mach-20-test-flight.html

[Mikha]

Не совсем понятно, почему у него острый нос? Вроде для таких скоростей он должен быть тупым, а иначе сгорает? Или скорости всё же ещё "не те"?

[KBOB]

А чем это "самолет" отличается от маневрирующей боеголовки МБР? Наличием шасси?

[ronatu]

А чем этоТ "самолет" отличается от маневрирующей боеголовки МБР? Наличием шасси?

А global strike capability

The HTV-2 is part of a program called Prompt Global Strike called DARPA (which is short for Defense Advanced Research Projects Agency) to develop advanced weapons systems with extreme range.
"The ultimate goal is a capability that can reach anywhere in the world in less than an hour." DARPA officials wrote in a mission description. "The HTV-2 vehicle is a 'data truck' with numerous sensors that collect data in an uncertain operating envelope...

:wink: