The Secret 5 Billion US Attack Plane Prototype That Was Never Made | Full Documentary
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- The secret 5 billion US delta wing attack aircraft that was never produced. Full Documentary
The story of the McDonnell Douglas/General Dynamics A-12 Avenger II, PART 2
The U.S. Navy secret stealth attack aircraft was canceled.
PART 1 AVAILABLE AT: • A-12 Avenger II: The S...
The A-12 Avenger II was a proposed American attack aircraft from McDonnell Douglas and General Dynamics. It was to be an all-weather, carrier-based stealth bomber replacement for the Grumman A-6 Intruder in the United States Navy and Marine Corps. Its Avenger II name was taken from the Grumman TBF Avenger of World War II.
The development of the A-12 was troubled by cost overruns and several delays, causing questions of the program's ability to deliver upon its objectives; these doubts led to the development program's cancellation in 1991. The manner of its cancellation was contested through litigation until a settlement was reached in January 2014.
The United States Navy began the Advanced Tactical Aircraft (ATA) program in 1983. The program was to develop and field a replacement for the A-6 Intruder by 1994. Stealth technology developed for the United States Air Force would be used heavily in the program. Concept design contracts were awarded to the industry teams of McDonnell Douglas/General Dynamics, and Northrop/Grumman/Vought in November 1984. The teams were awarded contracts for further concept development in 1986.
The McDonnell Douglas/General Dynamics team was selected as the winner on 13 January 1988; the rival team led by Grumman surprisingly failed to submit a final bid. The McDonnell Douglas/General Dynamics team was awarded a development contract and the ATA aircraft was designated A-12. The first flight was initially planned for December 1990. The A-12 was named Avenger II in homage to the World War II-era Navy torpedo-bomber Grumman TBF Avenger.
The Navy initially sought to buy 620 A-12s and Marines wanted 238. In addition, the Air Force briefly considered ordering some 400 of an A-12 derivative. The A-12 was promoted as a possible replacement for the Air Force's General Dynamics F-111 Aardvark and for the United Kingdom's Panavia Tornado fighter-bombers. The craft was a flying wing design in the shape of an isosceles triangle, with the cockpit situated near the apex of the triangle. The A-12 gained the nickname "Flying Dorito".
The aircraft was to be powered by two General Electric F412-D5F2 turbofan engines, each producing about 13,000 pounds-force (58 kN) of thrust. It was designed to carry precision-guided weapons internally, up to two AIM-120 AMRAAM air-to-air missiles, two AGM-88 HARM air-to-ground missiles, and a complement of air-to-ground ordnance, including unguided or precision-guided bombs, could be carried in an internal weapons bay. It has been claimed that the A-12 was to be capable of delivering nuclear weapons held in its internal weapons bay as well. The A-12 was to have a weapons load of 5,160 pounds (2,300 kg).
Beginning in early 1990 McDonnell Douglas and General Dynamics revealed delays and projected cost increases. Due to complications with the composite materials, aircraft weight had increased to 30% over design specification. This was unwelcome for an airplane that needed to operate efficiently and effectively from an aircraft carrier. Technical difficulties with the complexity of the radar system to be used also caused costs to increase; by one estimate the A-12 was to consume up to 70% of the Navy's budget for aircraft. After delays, its critical design review was successfully completed in October 1990 and the maiden flight was rescheduled to early 1992. In December 1990 plans were made for 14 Navy aircraft carriers to be equipped with a wing of 20 A-12s each.
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General characteristics
Crew: 2
Length: 37 ft 10 in (11.53 m)
Wingspan: 70 ft 3 in (21.41 m)
Width: 36 ft 3 in (11.05 m) wings folded
Height: 11 ft 3 in (3.43 m)
Wing area: 1,308 sq ft (121.5 m2)
Empty weight: 39,000 lb (17,690 kg)
Max takeoff weight: 80,000 lb (36,287 kg)
Fuel capacity: 21,322 pounds (9,700 kg) (internal)
Powerplant: 2 × General Electric F412-GE-D5F2 turbofan engines, 13,000 lbf (58 kN) thrust each
Performance
Maximum speed: 500 kn (580 mph, 930 km/h)
Combat range: 800 nmi (920 mi, 1,500 km)
Service ceiling: 40,000 ft (12,000 m)
Rate of climb: 5,000 ft/min (25 m/s)
Wing loading: 61 lb/sq ft (300 kg/m2)
Thrust/weight: 0.325
Armament
Payload capability: 5,160 pounds (2,300 kg) in internal weapons bay including:
2× AIM-120 AMRAAM air-to-air missiles
2× AGM-88 HARM air-to-ground missiles
Unguided or precision-guided bombs
#secret #aircraft #stealth - วิทยาศาสตร์และเทคโนโลยี
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There are 3 ways to radar stealth
- absorbing materials
- reflection shaping
-
You thought of that all by urself?
Re-upload?
I'm sure china and whoever else is wanting has long ago stolen all the secrets they want,they are welcomed here with a smile and they pillage our education system go home and help their governments create ways to kill us.
@@Doubletap. Wrong answer, bud
China Air force tanks you for the video ... To the drawing board Mr chow!
The schematics can be easily found on the web....
@@Dronescapes we know, their cloud is in our server (j/k 😂)
Chinese already got a more superior flight vehicle ah so watch out
@@ronaldwarren1267 such as?
Beijing's "Mighty Dragon" has several unfortunate drawbacks: it's domestically-produced engine, lack of a canon, wide RCS almost making its stealth credentials, worthless and vulnerable to multiple attack vectors available to onboard sensors and digital systems. Expectation and propaganda, of this as nearly all Chinese made aircraft, fail to deliver. The Diplomat a new variant, aims to address most of these concerns, however economic pressure continues to hamper and threaten development, at seemingly every stage.
So is this what happened to the trillions of lost dollars announced the day before 9/11 that we so conveniently forgot about?
Also conveniently all the files were located in the pentagon section that was destroyed on 9/11
@blitzkriegfritz2779 lol I wrote that on other posts but idk... here I left that out and how Silverstein and his 2 relatives didn't meet for breakfast in one of the towers that morning like they do every other day of the year.
I think I read the records were in building 7, the one that wasn't hit by a plane and due to papers catching fire, the decision was to "pull it" and destroy the building or let it get destroyed.
At the pentag0n there may also have been records but the investigating agency was behind the wall that got hit.
I think that's how it went... idr.
Also, the safe under one of the towers was found open?? You ever hear that? Idk... crazy stuff.
Yet another reason to despise Cheyney
McDonnell Douglas A-12 Avenger II - "The Flying Dorito" - One "terrible" aircraft! Primarily from technology advances required, during its concept to creation, but led to greater programs of Interest, Astra - B2 even F22 and F35, now matured to TR 3 / Block 4 or Northrop Grumman's B-21 Raider. Stealth matured beyond its dream of inception. Lockheed Martin X-59 QuessT ("Quiet SuperSonic Technology"), aiming for flight supersonic speeds, with only a soft "thump" instead of disruptive sonic boom, continuing to disrupt the viability / adoption of commercial supersonic flight today.