This article needs additional citations for verification .(March 2009) |
Bird of Prey | |
---|---|
General information | |
Type | Experimental stealth testbed |
Manufacturer | McDonnell Douglas / Boeing |
Status | On display |
Number built | 1 |
History | |
First flight | September 11, 1996 |
Retired | April 1999 |
Preserved at | National Museum of the United States Air Force |
The Boeing Bird of Prey is an American black project aircraft, intended to demonstrate stealth technology. It was developed by McDonnell Douglas and Boeing in the 1990s. [1] The company provided $67 million of funding for the project; [1] it was a low-cost program compared to many other programs of similar scale. It developed technology and materials which would later be used on Boeing's X-45 unmanned combat air vehicle. As an internal project, this aircraft was not given an X-plane designation. There are no public plans to make this a production aircraft. It is characterized as a technology demonstrator.
Development of the Bird of Prey began in 1992 by McDonnell Douglas's Phantom Works division for special projects, at Area 51. The aircraft's name is a reference to the Klingon Bird of Prey warship from the Star Trek television series. [2] Phantom Works later became part of Boeing Integrated Defense Systems after the Boeing–McDonnell Douglas merger in 1997.
The first flight was in 1996, and 39 more flights were performed through the program's conclusion in 1999. [1] The Bird of Prey was designed to prevent shadows and is believed to have been used to test active camouflage, which would involve its surfaces changing color or luminosity to match the surroundings. [3]
Because it was a demonstration aircraft, the Bird of Prey used a commercial off-the-shelf turbofan engine and manual hydraulic controls rather than fly-by-wire. This shortened the development time and greatly reduced its cost. (A production aircraft would have computerized controls.)
The shape is aerodynamically stable enough to be flown without computer correction. Its aerodynamic stability is in part due to lift provided by the chines, as used in other aircraft including the SR-71 Blackbird. This provided lift for the nose in flight. This configuration, which can be stable without a horizontal tailplane and a conventional vertical rudder, is now a standard in later stealth unmanned aerial vehicles such as the X-45 and X-47, tailless aircraft which use drag rudders (asymmetrically used wingtip airbrakes) for yaw control.
The aircraft, which had given the designation "YF-118G" as a cover, [4] was made public on October 18, 2002. [1]
The Bird of Prey was put on display at the National Museum of the United States Air Force at Wright-Patterson Air Force Base near Dayton, Ohio on July 16, 2003. It is now on display at the museum's Modern Flight Gallery above their F-22 Raptor.
Data from Jane's All The World's Aircraft 2003–2004 [5]
General characteristics
Performance
Related development
Aircraft of comparable role, configuration, and era
The Northrop YF-17 was a prototype lightweight fighter aircraft designed by Northrop aviation for the United States Air Force's Lightweight Fighter (LWF) technology evaluation program. The LWF was initiated because many in the fighter community believed that aircraft like the F-15 Eagle were too large and expensive for many combat roles. The YF-17 was the culmination of a long line of Northrop designs, beginning with the N-102 Fang in 1956, continuing through the F-5 family.
The Northrop/McDonnell Douglas YF-23 is an American single-seat, twin-engine, stealth fighter technology demonstrator prototype designed for the United States Air Force (USAF). The design team, with Northrop as the prime contractor, was a finalist in the USAF's Advanced Tactical Fighter (ATF) demonstration/validation competition, battling the YF-22 team for full-scale development and production. Two YF-23 prototypes were built.
The Boeing X-45 unmanned combat air vehicle is a concept demonstrator for a "next generation" of completely autonomous military aircraft, developed by Boeing's Phantom Works. Manufactured by Boeing Integrated Defense Systems, the X-45 was a part of DARPA's J-UCAS project.
The McDonnell DouglasX-36Tailless Fighter Agility Research Aircraft is an American stealthy subscale prototype jet designed to fly without the traditional empennage found on most aircraft. This configuration was designed to reduce weight, drag and radar cross section, and increase range, maneuverability and survivability.
The Boeing X-32 is a concept demonstrator aircraft that was designed for the Joint Strike Fighter competition. It lost to the Lockheed Martin X-35 demonstrator, which was further developed into the Lockheed Martin F-35 Lightning II.
The Lockheed/
The Boeing X-48 is an American experimental unmanned aerial vehicle (UAV) built to investigate the characteristics of blended wing body (BWB) aircraft. Boeing designed the X-48 and two examples were built by Cranfield Aerospace in the UK. Boeing began flight testing the X-48B version for NASA in 2007. The X-48B was later modified into the X-48C version, which was flight tested from August 2012 to April 2013. Boeing and NASA plan to develop a larger BWB demonstrator.
The Dassault nEUROn is an experimental unmanned combat aerial vehicle (UCAV) being developed with international cooperation, led by the French company Dassault Aviation. Countries involved in this project include France, Greece, Italy, Spain, Sweden and Switzerland. The design goal is to create a stealthy, autonomous UAV that can function in medium-to-high threat combat zones.
Boeing Phantom Works is the advanced prototyping arm of the defense and security side of Boeing. Its primary focus is developing advanced military products and technologies, many of them highly classified.
A supersonic aircraft is an aircraft capable of supersonic flight, that is, flying faster than the speed of sound. Supersonic aircraft were developed in the second half of the twentieth century. Supersonic aircraft have been used for research and military purposes, but only two supersonic aircraft, the Tupolev Tu-144 and the Concorde, ever entered service for civil use as airliners. Fighter jets are the most common example of supersonic aircraft.
The McDonnell Douglas F-15 STOL/MTD is a modified F-15 Eagle. Developed as a technology demonstrator, the F-15 STOL/MTD carried out research for studying the effects of thrust vectoring and enhanced maneuverability. The aircraft used for the project was pre-production TF-15A (F-15B) No. 1, the first two-seat F-15 Eagle built by McDonnell Douglas, the sixth F-15 off the assembly line, and was the oldest F-15 flying up to its retirement. It was also used as the avionics testbed for the F-15E Strike Eagle program. The plane was on loan to NASA from the United States Air Force.
The X-53 Active Aeroelastic Wing (AAW) development program is a completed American research project that was undertaken jointly by the Air Force Research Laboratory (AFRL), Boeing Phantom Works and NASA's Dryden Flight Research Center, where the technology was flight tested on a modified McDonnell Douglas F/A-18 Hornet. Active Aeroelastic Wing Technology is a technology that integrates wing aerodynamics, controls, and structure to harness and control wing aeroelastic twist at high speeds and dynamic pressures. By using multiple leading and trailing edge controls like "aerodynamic tabs", subtle amounts of aeroelastic twist can be controlled to provide large amounts of wing control power, while minimizing maneuver air loads at high wing strain conditions or aerodynamic drag at low wing strain conditions. This program was the first full-scale proof of AAW technology.
The BAE Systems Taranis is a British demonstrator programme for unmanned combat aerial vehicle (UCAV) technology, under development primarily by the defence contractor BAE Systems Military Air & Information. The aircraft, which is named after the Celtic god of thunder Taranis, first flew in 2013. An unmanned warplane, the Taranis is designed to fly intercontinental missions, and would carry a variety of weapons, enabling it to attack both aerial and ground targets. It uses stealth technology, giving it a low radar profile, and is controllable via satellite link from anywhere on Earth.
The Pelikan tail is an experimental tail design for fighter jets. It was originally conceived by Ralph Pelikan, who was hired by McDonnell Aircraft, later worked for McDonnell Douglas after the merger of McDonnell with Douglas and, after another merger, retired from Boeing. The concept was used in the Northrop YF-23 fighter. However, it has been considered or included in design specifications in the McDonnell Douglas BAE Joint Strike fighter (JSF) design which was eliminated before prototype stage
The Boeing AH-6 is a series of light helicopter gunships based on the MH-6 Little Bird and MD 500 family. Developed by Boeing Rotorcraft Systems, these include the Unmanned Little Bird (ULB) demonstrator, the A/MH-6X Mission Enhanced Little Bird (MELB), and the proposed AH-6I and AH-6S.
The Boeing Phantom Eye is a high altitude, long endurance (HALE) liquid hydrogen-powered unmanned aerial vehicle developed by Boeing Phantom Works. The aircraft was Boeing's proposal to meet the demand from the US military for unmanned drones designed to provide advanced intelligence and reconnaissance work, driven by the combat conditions in Afghanistan in particular. In August 2016, the Phantom Eye demonstrator was disassembled for display at the Air Force Flight Test Museum.
The Boeing Phantom Ray is an American demonstration stealth unmanned combat air vehicle (UCAV) developed by Boeing. The autonomous Phantom Ray is a flying wing around the size of a conventional fighter jet, and first flew in April 2011. It will conduct a program of test flights involving surveillance, ground attack and autonomous aerial refueling missions. The developers say it can carry 4,500 pounds of payload.
Ghatak (pronounced: gʰɑːt̪ək; lit. 'Deadly' in Hindi), inistially designated as Indian Unmanned Strike Air Vehicle (IUSAV), is an autonomous jet powered stealthy unmanned combat air vehicle (UCAV), being developed by Aeronautical Development Establishment (ADE) of the Defence Research and Development Organisation (DRDO) for the Indian Air Force. The design work on the UCAV is to be carried out by Aeronautical Development Agency (ADA). Autonomous Unmanned Research Aircraft (AURA) was a tentative name for the UCAV. Details of the project are classified.
The Vertical Take-Off and Landing Experimental Aircraft program was an American research project sponsored by the Defense Advanced Research Projects Agency (DARPA). The goal of the program was to demonstrate a VTOL aircraft design that can take off vertically and efficiently hover, while flying faster than conventional rotorcraft. There have been many previous attempts, most of them unsuccessful as of 2015.