Paveway
Encyclopedia
Paveway is a generic term
Genericized trademark
A genericized trademark is a trademark or brand name that has become the colloquial or generic description for, or synonymous with, a general class of product or service, rather than as an indicator of source or affiliation as intended by the trademark's holder...

 for Laser Guided Bombs
Laser-guided bomb
A laser-guided bomb is a guided bomb that uses semi-active laser homing to strike a designated target with greater accuracy than an unguided bomb. LGBs are one of the most common and widespread guided bombs, used by a large number of the world's air forces.- Overview :Laser-guided munitions use a...

 (LGB).

Pave or PAVE
PAVE
The codeword PAVE is a U.S. Air Force program identifier relating to electronic systems. Use of the prefix identifier is sometimes thought to be an acronym, but the various acronyms proposed do not fit with the wide range of programs it is used to identify...

 is sometimes used as an acronym for precision avionics
Avionics
Avionics are electronic systems used on aircraft, artificial satellites and spacecraft.Avionic systems include communications, navigation, the display and management of multiple systems and the hundreds of systems that are fitted to aircraft to meet individual roles...

 vectoring equipment; literally, electronics for controlling the speed and direction of aircraft
Aircraft
An aircraft is a vehicle that is able to fly by gaining support from the air, or, in general, the atmosphere of a planet. An aircraft counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines.Although...

. Laser guidance is a form of Pave.

Pave, paired with other words, also names laser systems that designate targets for LGBs, for example Pave Penny
Pave Penny
The Lockheed Martin AN/AAS-35 Pave Penny is a laser spot tracker carried by US Air Force attack aircraft and fighter-bombers to enable them to track a laser spot on the ground...

, Pave Spike
Pave Spike
The Westinghouse AN/ASQ-153\AN/AVQ-23 Pave Spike is an electro-optical laser designator pod used to direct laser-guided bombs to target in daylight, visual conditions...

, Pave Tack
Pave Tack
The Ford Aerospace AN/AVQ-26 Pave Tack is an electro-optical targeting pod developed by the United States Air Force for military attack aircraft. It uses a laser and a forward-looking infrared to find and designate targets for laser-guided bombs and other precision-guided weapons...

 and Pave Knife
Pave Knife
The Ford Aerospace AN/AVQ-10 Pave Knife was an early targeting pod developed by the USAF to designate and guide laser-guided bombs.Pave Knife was developed in 1969 to replace the original, essentially improvised Airborne Laser Designator . ALD was not a pod, but a hand-held laser operated by the...

, and for specialized military aircraft, such as AC-130U Pave Spectre
Lockheed AC-130
The Lockheed AC-130 gunship is a heavily-armed ground-attack aircraft variant of the C-130 Hercules transport plane. The basic airframe is manufactured by Lockheed, while Boeing is responsible for the conversion into a gunship and for aircraft support...

, and HH-60 Pave Hawk
HH-60 Pave Hawk
The Sikorsky MH-60G/HH-60G Pave Hawk is a twin turboshaft engine helicopter in service with the United States Air Force. It is a derivative of the UH-60 Black Hawk and incorporates the US Air Force PAVE electronic systems program...

.

Trademark

Lockheed Martin
Lockheed Martin
Lockheed Martin is an American global aerospace, defense, security, and advanced technology company with worldwide interests. It was formed by the merger of Lockheed Corporation with Martin Marietta in March 1995. It is headquartered in Bethesda, Maryland, in the Washington Metropolitan Area....

 and Raytheon
Raytheon
Raytheon Company is a major American defense contractor and industrial corporation with core manufacturing concentrations in weapons and military and commercial electronics. It was previously involved in corporate and special-mission aircraft until early 2007...

 compete to supply LGBs to the United States Air Force
United States Air Force
The United States Air Force is the aerial warfare service branch of the United States Armed Forces and one of the American uniformed services. Initially part of the United States Army, the USAF was formed as a separate branch of the military on September 18, 1947 under the National Security Act of...

, and others. Raytheon
Raytheon
Raytheon Company is a major American defense contractor and industrial corporation with core manufacturing concentrations in weapons and military and commercial electronics. It was previously involved in corporate and special-mission aircraft until early 2007...

 claims the exclusive right to use Paveway as a trademark
Trademark
A trademark, trade mark, or trade-mark is a distinctive sign or indicator used by an individual, business organization, or other legal entity to identify that the products or services to consumers with which the trademark appears originate from a unique source, and to distinguish its products or...

 for selling LGB-related products. Lockheed Martin
Lockheed Martin
Lockheed Martin is an American global aerospace, defense, security, and advanced technology company with worldwide interests. It was formed by the merger of Lockheed Corporation with Martin Marietta in March 1995. It is headquartered in Bethesda, Maryland, in the Washington Metropolitan Area....

 claims Paveway is a generic term in the defense industry. Lockheed objected to Raytheon's registration of Paveway in opposition proceeding
Opposition proceeding
An opposition proceeding is an administrative process available under the patent and trademark law of most jurisdictions which allows third parties to dispute the validity of a granted patent or trademark.-Patents:...

s before the United States Patent and Trademark Office
United States Patent and Trademark Office
The United States Patent and Trademark Office is an agency in the United States Department of Commerce that issues patents to inventors and businesses for their inventions, and trademark registration for product and intellectual property identification.The USPTO is based in Alexandria, Virginia,...

. On September 27, 2011, the USPTO Trademark Trial and Appeal Board
Trademark Trial and Appeal Board
The Trademark Trial and Appeal Board is a body within the United States Patent and Trademark Office responsible for hearing and deciding certain kinds of cases involving trademarks. These include appeals from decisions by USPTO Examiners denying registration of marks, and opposition proceedings...

 decided that Paveway is a generic term, in the United States, for LGBs.

History

The Paveway series of laser-guided bombs was developed by Texas Instruments
Texas Instruments
Texas Instruments Inc. , widely known as TI, is an American company based in Dallas, Texas, United States, which develops and commercializes semiconductor and computer technology...

 starting in 1964
1964 in aviation
For the year see 1964This is a list of aviation-related events from 1964:- Events :* Chilean President Jorge Alessandri grants the Chilean Navy the authority to operate all types of aircraft without restriction...

. The program was conducted on a shoestring budget, but the resultant emphasis on simplicity and economical engineering proved to be a benefit, and a major advantage over other more complex guided weapons. The first test weapon, using a M117 bomb
M117 bomb
The M117 is an air-dropped general-purpose bomb used by United States military forces. It dates back to the time of the Korean War of the early 1950s. Although it has a nominal weight of 750 lb , its actual weight, depending on fuze and retardation options, is around 820 lb . Its explosive content...

 as the warhead, took place in April 1965
1965 in aviation
This is a list of aviation-related events from 1965:-January:* January 2 - Denis Healey, the United Kingdoms Secretary of Defence, cancels the nation's fighter and military transport programmes and orders the purchase of the US-built F-4 Phantom and C-130 Hercules in their place.* January 26 -...

. Prototype weapons were sent to Vietnam
Vietnam War
The Vietnam War was a Cold War-era military conflict that occurred in Vietnam, Laos, and Cambodia from 1 November 1955 to the fall of Saigon on 30 April 1975. This war followed the First Indochina War and was fought between North Vietnam, supported by its communist allies, and the government of...

 for combat testing starting in 1968
1968 in aviation
This is a list of aviation-related events from 1968:- Events :* In the 1968 White Paper on Defence, the British Labour government announces that the Royal Navys aircraft carrier force will be phased out as soon as the United Kingdom has completed its withdrawal from Malaysia, Singapore, and the...

.

In January 1967 the Air Force authorized Project 3169 as the formal engineering program for development of precision guided munitions, renewing its contract with TI in March to redesign the M117 kit, with a very aggressive timeline, projecting deployment to Vietnam for combat testing in one year. Direction of the program was assigned to the Guided Bomb Program Office at Wright-Patterson Air Force Base
Wright-Patterson Air Force Base
Wright-Patterson Air Force Base is a United States Air Force base in Greene and Montgomery counties in the state of Ohio. It includes both Wright and Patterson Fields, which were originally Wilbur Wright Field and Fairfield Aviation General Supply Depot. Patterson Field is located approximately...

 in August, and flight testing begun in November at Eglin Air Force Base
Eglin Air Force Base
Eglin Air Force Base is a United States Air Force base located approximately 3 miles southwest of Valparaiso, Florida in Okaloosa County....

 under the direction of an interagency organization called the Pave Way Task Force. At that time the program had three divisions:
  • Paveway 1 - laser-guided munitions
  • Paveway 2 - an electro-optical (TV) guided munition developed by Rockwell International
    Rockwell International
    Rockwell International was a major American manufacturing conglomerate in the latter half of the 20th century, involved in aircraft, the space industry, both defense-oriented and commercial electronics, automotive and truck components, printing presses, valves and meters, and industrial automation....

     designated HOBO ("Homing Bomb"), of which 4.000 were eventually produced and 500 launched in combat, and
  • Paveway 3 - an infrared guidance system that was never deployed.

Because Paveway 2, although considerably more accurate and capable, was four to five times more expensive per copy and much less applicable to most targeting situations in Vietnam, Paveway 1 became the emphasis of the program.

Paveway kits attach to a variety of warheads, and consist of a semi-active laser (SAL) seeker, a computer control group (CCG) containing guidance and control electronics, thermal battery
Battery (electricity)
An electrical battery is one or more electrochemical cells that convert stored chemical energy into electrical energy. Since the invention of the first battery in 1800 by Alessandro Volta and especially since the technically improved Daniell cell in 1836, batteries have become a common power...

, and pneumatic control augmentation system (CAS). There are front control canard
Canard (aeronautics)
In aeronautics, canard is an airframe configuration of fixed-wing aircraft in which the forward surface is smaller than the rearward, the former being known as the "canard", while the latter is the main wing...

s and rear wings for stability. The weapon guides on reflected laser energy: the seeker detects the reflected light ("sparkle") of the designating laser, and actuates the canards to guide the bomb toward the designated point.

The original Paveway series, retroactively named Paveway I, gave way in the early 1970s to the improved Paveway II, which had a simplified, more reliable seeker and pop-out rear wings to improve the weapon's glide performance. Both Paveway I and Paveway II use a simple 'bang-bang' control system
Bang-bang control
In control theory, a bang–bang controller , also known as a hysteresis controller, is a feedback controller that switches abruptly between two states. These controllers may be realized in terms of any element that provides hysteresis...

, where the CAS commands large canard
Canard
Canard may refer to:*Nicolas-François Canard , French mathematician and economist*Canard , a small wing mounted on the front of some aircraft, which can be beneficial or detrimental depending on the design of the plane and its intended use*Canard , a phenomenon in some slow-fast dynamical systems...

 deflections to make course corrections, resulting in a noticeable wobble. This had relatively little effect on accuracy, but expends energy quickly, limiting effective range. As a consequence, most users release Paveway I and II weapons in a ballistic trajectory, activating the laser designator only late in the weapon's flight to refine the impact point.

In 1976
1976 in aviation
This is a list of aviation-related events from 1976:-January:*January 1 - Middle East Airlines Flight 438, a Boeing 720, aircraft over Saudi Arabia when bomb exploded in the forward baggage compartment, aircraft destroyed killing 81.-March:...

, the USAF issued a requirement for a new generation, dubbed Paveway III, that finally entered service in 1986
1986 in aviation
This is a list of aviation-related events from 1986:-January:* January 9 - the UK Defence Secretary, Michael Heseltine, resigns amidst a political furore over the future of Westland Helicopters...

. The Paveway III system used a much more sophisticated seeker with a wider field of view and proportional guidance, minimizing the energy loss of course corrections. Paveway III has a considerably longer glide range and greater accuracy than Paveway II, but it is substantially more expensive, limiting its use to high-value targets. Although Paveway III kits were developed for the smaller Mk 82
Mark 82 bomb
The Mark 82 is an unguided, low-drag general-purpose bomb, part of the U.S. Mark 80 series. The explosive filling is tritonal.-Development and deployment:...

 weapons, limited effectiveness caused the USAF to adopt the kit only for the larger 2,000 lb-class weapons (the Mk 84
Mark 84 bomb
The Mark 84 is an American general-purpose bomb, it is also the largest of the Mark 80 series of weapons. Entering service during the Vietnam War, it became a commonly used US heavy unguided bomb to be dropped, second only to the BLU-82 "Daisy Cutter" then in service and presently third only to...

 and BLU-109
BLU-109 bomb
The BLU-109/B is a hardened penetration bomb used by the United States Air Force . As other "bunker busters", it is intended to smash through concrete shelters and other hardened structures before exploding...

). Paveway III guidance kits were also used on the GBU-28/B penetration bomb
GBU-28
The Guided Bomb Unit 28 is a 5,000 pound laser-guided "bunker busting" bomb nicknamed "Deep Throat" produced originally by the Watervliet Arsenal, Watervliet, New York. It was designed, manufactured, and deployed in less than three weeks due to an urgent need during Operation Desert Storm to...

 fielded at the close of the 1991 Gulf War
Gulf War
The Persian Gulf War , commonly referred to as simply the Gulf War, was a war waged by a U.N.-authorized coalition force from 34 nations led by the United States, against Iraq in response to Iraq's invasion and annexation of Kuwait.The war is also known under other names, such as the First Gulf...

. The Paveway III system was also used during the India
India
India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

n offensive in the Kargil War
Kargil War
The Kargil War ,, also known as the Kargil conflict, was an armed conflict between India and Pakistan that took place between May and July 1999 in the Kargil district of Kashmir and elsewhere along the Line of Control...

 of 1999 by the Indian Air Force
Indian Air Force
The Indian Air Force is the air arm of the Indian armed forces. Its primary responsibility is to secure Indian airspace and to conduct aerial warfare during a conflict...

 with the Mirage 2000 as a launch platform. Raytheon
Raytheon
Raytheon Company is a major American defense contractor and industrial corporation with core manufacturing concentrations in weapons and military and commercial electronics. It was previously involved in corporate and special-mission aircraft until early 2007...

, the sole provider of Paveway III variants, is currently delivering both standard and enhanced versions to the US Government and foreign customers.

Existing LGBs in US service can be upgraded to Dual Mode Laser Guided Bombs (DMLGB) by adding GPS receivers which enable all weather
Weather
Weather is the state of the atmosphere, to the degree that it is hot or cold, wet or dry, calm or stormy, clear or cloudy. Most weather phenomena occur in the troposphere, just below the stratosphere. Weather refers, generally, to day-to-day temperature and precipitation activity, whereas climate...

 employment. Lockheed Martin
Lockheed Martin
Lockheed Martin is an American global aerospace, defense, security, and advanced technology company with worldwide interests. It was formed by the merger of Lockheed Corporation with Martin Marietta in March 1995. It is headquartered in Bethesda, Maryland, in the Washington Metropolitan Area....

 won the initial contract to provide DMLGBs to the US Navy (USN) in 2005, however subsequent-year money has been "zeroed" in favor of a follow-on Direct Attack Moving Target Capability (DAMTC) program. Raytheon's version, the "Enhanced Paveway II", has been contracted both within the US and abroad.

An advanced Paveway IV series is being developed for export
Export
The term export is derived from the conceptual meaning as to ship the goods and services out of the port of a country. The seller of such goods and services is referred to as an "exporter" who is based in the country of export whereas the overseas based buyer is referred to as an "importer"...

, including Britain's RAF
Royal Air Force
The Royal Air Force is the aerial warfare service branch of the British Armed Forces. Formed on 1 April 1918, it is the oldest independent air force in the world...

, but it appears that the USAF remains committed instead to the small-diameter bomb program.

The Paveway series of bombs includes:
  • GBU-10 Paveway II
    GBU-10 Paveway II
    American Paveway-series laser-guided bomb, based on the Mk 84 general-purpose bomb, but with laser seeker and wings for guidance. Introduced into service c. 1976. Used by USAF, US Navy, US Marine Corps, RAAF and various NATO air forces....

     – Mk 84
    Mark 84 bomb
    The Mark 84 is an American general-purpose bomb, it is also the largest of the Mark 80 series of weapons. Entering service during the Vietnam War, it became a commonly used US heavy unguided bomb to be dropped, second only to the BLU-82 "Daisy Cutter" then in service and presently third only to...

     2000 lb (907 kg) bomb
  • GBU-12 Paveway II
    GBU-12 Paveway II
    The GBU-12 PAVEWAY II laser-guided bomb is an American aerial bomb, based on the Mk 82 500-pound general-purpose bomb, but with the addition of a nose-mounted laser seeker and fins for guidance. A member of the PAVEWAY series of weapons, PAVEWAY II entered into service c. 1976. It is currently in...

     – Mk 82
    Mark 82 bomb
    The Mark 82 is an unguided, low-drag general-purpose bomb, part of the U.S. Mark 80 series. The explosive filling is tritonal.-Development and deployment:...

     500 lb (227 kg) bomb
  • GBU-16 Paveway II
    GBU-16 Paveway II
    The GBU-16 Paveway II is an American Paveway-series laser-guided bomb, based on the Mk 83 general-purpose bomb, but with laser seeker and wings for guidance. It was introduced into service around 1976. It is used by USAF, US Navy, US Marine Corps, and various NATO air forces. It uses a 1,000 pound...

     – Mk 83
    Mark 83 bomb
    The Mark 83 is part of the Mark 80 series of low-drag general-purpose bombs in United States service.-Development & deployment:The nominal weight of the bomb is 1,000 lb , although its actual weight varies between 985 lb and 1,030 lb , depending on fuze options, and fin configuration...

     1000 lb (454 kg) bomb
  • GBU-22 Paveway III – Mk 82
    Mark 82 bomb
    The Mark 82 is an unguided, low-drag general-purpose bomb, part of the U.S. Mark 80 series. The explosive filling is tritonal.-Development and deployment:...

     500 lb (227 kg) bomb. Developed at the same time as GBU-24, with some limited export success, but was not adopted by USA as it was felt to be too small of a warhead for the desired effects at the time.
  • GBU-24 Paveway III
    GBU-24 Paveway III
    Raytheon GBU-24 Family The GBU-24 is a family of laser-guided bombs, a sub-group of the larger Raytheon Paveway III family of weapons. The Paveway guidance package consists of a seeker package attached to the nose of the weapon, and a wing kit attached to the rear to provide stability and greater...

     – Mk 84
    Mark 84 bomb
    The Mark 84 is an American general-purpose bomb, it is also the largest of the Mark 80 series of weapons. Entering service during the Vietnam War, it became a commonly used US heavy unguided bomb to be dropped, second only to the BLU-82 "Daisy Cutter" then in service and presently third only to...

    /BLU-109
    BLU-109 bomb
    The BLU-109/B is a hardened penetration bomb used by the United States Air Force . As other "bunker busters", it is intended to smash through concrete shelters and other hardened structures before exploding...

     2000 lb (907 kg) class bomb
  • GBU-27 Paveway III
    GBU-27 Paveway III
    The GBU-27 Paveway III is a laser-guided bomb with bunker buster capabilities. It is a GBU-24 Paveway III that has been redesigned to be used by the F-117A Nighthawk stealth ground attack aircraft.-Combat history:...

     – BLU-109
    BLU-109 bomb
    The BLU-109/B is a hardened penetration bomb used by the United States Air Force . As other "bunker busters", it is intended to smash through concrete shelters and other hardened structures before exploding...

     2000 lb (907 kg) bomb with penetration warhead, specially designed for F-117 because the large fins of GBU-24 couldn't fit into the bomb bay of F-117.
  • GBU-28 Paveway III
    GBU-28
    The Guided Bomb Unit 28 is a 5,000 pound laser-guided "bunker busting" bomb nicknamed "Deep Throat" produced originally by the Watervliet Arsenal, Watervliet, New York. It was designed, manufactured, and deployed in less than three weeks due to an urgent need during Operation Desert Storm to...

     – During the Gulf War
    Gulf War
    The Persian Gulf War , commonly referred to as simply the Gulf War, was a war waged by a U.N.-authorized coalition force from 34 nations led by the United States, against Iraq in response to Iraq's invasion and annexation of Kuwait.The war is also known under other names, such as the First Gulf...

    , the deepest and most hardened Iraqi bunkers could not be defeated by the BLU-109/B penetrator warhead, so a much more powerful "bunker buster" GBU-28 was developed. The latest warhead used in the GBU-28/B series is the BLU-122/B, a development of earlier BLU-113 on early GBU-28s.
  • Paveway IV
    Paveway IV
    The Raytheon Paveway IV is a dual mode GPS/INS and laser guided bomb for use by military aircraft. It is the latest iteration of Raytheon's Paveway series....

     – 500 lb (227 kg) bomb

See also

  • Laser designator
    Laser designator
    A laser designator is a laser light source which is used to designate a target. Laser designators provide targeting for laser guided bombs, missiles, or precision artillery munitions, such as the Paveway series of bombs, Lockheed-Martin's Hellfire, or the Copperhead round, respectively.When a...

  • JDAM
    Joint Direct Attack Munition
    The Joint Direct Attack Munition is a guidance kit that converts unguided bombs, or "dumb bombs" into all-weather "smart" munitions. JDAM-equipped bombs are guided by an integrated inertial guidance system coupled to a Global Positioning System receiver, giving them a published range of up to...

     (a GPS guidance package for a standard iron bomb, built by the Boeing
    Boeing
    The Boeing Company is an American multinational aerospace and defense corporation, founded in 1916 by William E. Boeing in Seattle, Washington. Boeing has expanded over the years, merging with McDonnell Douglas in 1997. Boeing Corporate headquarters has been in Chicago, Illinois since 2001...

     corporation
    Corporation
    A corporation is created under the laws of a state as a separate legal entity that has privileges and liabilities that are distinct from those of its members. There are many different forms of corporations, most of which are used to conduct business. Early corporations were established by charter...

    )
  • SCALPEL
    SCALPEL (guided bomb)
    SCALPEL is a laser-guided bomb produced by Lockheed Martin. The weapon is being developed from the Enhanced Laser Guided Training Round which is the training version of the Paveway II series of bombs...


External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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