Minggu, 01 September 2013
Sabtu, 09 Februari 2013
Iran unveils new indigenous stealth fighter “Qaher 313″
Iran unveiled its indigenous fighter jet named "Qaher 313″. The prototype of the Q-313 (or F-313 according to the stencils applied to the aircraft), was presented to President Mahmoud Ahmadinejad and publicly displayed as part of the Ten-Day Dawn ceremonies held in Iran to celebrate the 1979′s victory of the Islamic Revolution. Iran's new fighter jet doesn't look like any we've ever seen before.
n the previous days, the Iranian Defense Minister Brigadier General Ahmad Vahidi had said, “The aircraft will be different from the other fighter jets Iran has already made. Base on the first photographs released by the FARS News Agency, the new stealthy jet has a really peculiar design. It features hard edges and those distinctive edges and angle of the U.S. F-22 and the twin tail shape much similar to that of the F-35 Lightning II. It looks like this pilot is in a miniature plane. After more watch the Q-313 in the air.
Rabu, 12 Desember 2012
The fastest airplane in the world
The name of this bird Lockheed SR 71 Blackbird.Equipped with air-breathing engine.
Maximum speed was registered in 1976, which amounted to 1,905.81 knots (3,529.6 km / h), which is equal to 58.83 miles per minute. Even missiles surface-to-air is not to catch up with the Lockheed Blackbird, he had only accelerate. Below you will find more information about it, its history and records, which remain to this day.
Lockheed SR 71 was in service with the U.S. Air Force from 1964 to 1998. Of the 32 aircraft built, 12 were lost in accidents not related to enemy action. From 1976 he held the world record as the fastest plane.
Built aircraft were painted dark blue, almost black, to increase the emission of internal heat and act as camouflage against the night sky. Dark color led to the aircraft call sign - "Blackbird".
On most of the aircraft is limited to use of titanium, it is only in the components most prone to high temperatures, such as exhaust and the front edges of the wings. On SR 71 titanium was used for 85% of the structure with the other parts made of composite materials. It is possible to reduce the weight, thus increasing speed.
Flight at an altitude of 24.000 meters do not allow the use of standard masks, which could not provide enough oxygen above 13.000 m have been made special airtight protective helmets, which were also used on the space shuttles. Engine Pratt & Whitney J58-P4 was a significant innovation of his era - a unique hybrid, issuing 145 kN start push.
Originally engines Blackbird alternately run with an optional, starter motor. The operation was very noisy, and eventually created a quieter, pneumatic start system.
The first flight of the fastest aircraft in the world to accomplish a December 22, 1964, at Air Force Plant 42 in Palmdale, California. SR 71 first entered service in January 1966.
SR 71 was the fastest and most high-soaring manned combat aircraft in the world during his career. July 28, 1976 has been broken the world record for its class: an "absolute altitude" was 85.069 feet (25.929 meters). Several planes exceeded this altitude in a rapid rise, but not in a long flight. On the same day SR 71 set an absolute speed record - 1,905.81 knots (2,193.2 miles per hour, 3,529.6 km / h). Lockheed also holds the record for "Speed at the specified rate", it reached from New York to London (5.646 miles) in 1 hour 54 minutes and 56.4 seconds, 1 September 1974.
Senin, 10 Desember 2012
5 Classified Aircraft That People Mistake for UFOs
Many classified (some formerly) aircraft, such as the RQ-3 DarkStar and TR-3B Aurora, were mistakenly called UFOs, and we've rounded up five such examples to show just how far we've come in the aviation world. Continue reading to see them all.
5. RQ-3 Darkstar
The RQ-3 DarkStar's official first flight was on March 29, 1996. It's basically a "high-altitude endurance UAV", and incorporated stealth technology to make it difficult to detect, which allowed it to operate within heavily defended airspace, unlike the RQ-4 Global Hawk, which is unable to operate except under conditions of air superiority. This aircraft was fully autonomous, meaning that it could take off, fly to its target, operate its sensors, transmit information, return and land without human intervention. However, human operators could also change the DarkStar's flight plan and sensor orientation via radio or satellite relay. The RQ-3 carried either an optical sensor or radar, and could send digital information to a satellite while still in flight. It used a single jet engine of unknown type for propulsion.
4. SR-91
The US government is reportedly testing the SR-91 reconnaissance aircraft, successor to the SR-71. This top-secret aircraft can travel at Mach 5-6 at an altitude of 100,000-feet-plus, whereas the SR-71 can only achieve Mach 3.5 at around 80,000-feet. It boasts next-generation stealth technology that may include cloaking.
3. P-791
Lockheed Martin's P-791 is essentially an experimental aerostatic / aerodynamic hybrid airship with a unique tri-hull shape and disk-shaped cushions on the bottom for landing. Since it is a hybrid airship, part of the weight of the craft and its payload are supported by aerostatic (buoyant) lift and the remainder is supported by aerodynamic lift. The combination of aerodynamic and aerostatic lift is an attempt to benefit from both the high speed of aerodynamic craft and the lifting capacity of aerostatic craft.
2. B-2 Stealth Bomber
Northrop Grumman's B-2 Stealth Bomber features low observable stealth technology designed for penetrating dense anti-aircraft defenses; it is able to deploy both conventional and nuclear weapons. During manufacturing, a former car plant in Pico Rivera, California was acquired and heavily rebuilt; the plant's employees were sworn to complete secrecy regarding their work. To avoid the possibility of suspicion, components were typically purchased through front companies, military officials would visit out of uniform, and staff members were routinely subjected to polygraph examinations. The secrecy extended so far that access to nearly all information on the program by both Government Accountability Office (GAO) and virtually all members of Congress itself was severely limited until mid-1980s.
1. TR-3B Aurora
Purportedly, the TR-3B crafts are stored in a hanger built into a side of a mountain near DARC (Defense Advanced Research Center), which is located inside the Nellis Range, some 10 stories underground. It boasts a circular, plasma-filled accelerator ring called the Magnetic Field Disrupter that surrounds the rotatable crew compartment. The plasma, mercury based, is pressurized at 250,000 atmospheres at a temperature of 150 degrees Kelvin and accelerated to 50,000 rpm to create a super-conductive plasma with the resulting gravity disruption. The MFD generates a magnetic vortex field, which disrupts or neutralizes the effects of gravity on mass within proximity, by 89%.
Minggu, 09 Desember 2012
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