{"id":29115003,"date":"2026-10-22T11:15:48","date_gmt":"2026-10-22T09:15:48","guid":{"rendered":"https:\/\/migflug.com\/afterburner\/how-does-laser-guided-bomb-work-paveway\/"},"modified":"2026-10-22T11:15:54","modified_gmt":"2026-10-22T09:15:54","slug":"how-does-laser-guided-bomb-work-paveway","status":"publish","type":"post","link":"https:\/\/migflug.com\/afterburner\/it\/how-does-laser-guided-bomb-work-paveway\/","title":{"rendered":"How Does a Laser-Guided Bomb Work? Paveway Explained"},"content":{"rendered":"\n<style>.et_pb_title_container h1.entry-title { padding-top: 40px !important; }<\/style>\n\n\n\n<!-- mfsh:top -->\n\n<style>\n.mfsh-trigger{display:inline-flex;align-items:center;gap:10px;height:44px;padding:0 18px;margin:0 0 26px;border:2px solid #0F1720;background:#fff;color:#0F1720;font-family:inherit;font-size:14px;font-weight:700;line-height:1;letter-spacing:0;text-transform:none;cursor:pointer;box-shadow:none;transition:background .15s,color .15s}\n.mfsh-trigger:hover,.mfsh-trigger:focus-visible{background:#0F1720;color:#fff;outline:none}\n.mfsh-trigger svg{width:18px;height:18px;display:block;flex-shrink:0}\n.mfsh-trigger.mfsh-bottom{margin:8px 0 28px}\n.mfsh-meta{position:relative;padding-right:190px}\n.mfsh-trigger.mfsh-inmeta{position:absolute;right:0;bottom:0;margin:0;height:30px;padding:0 8.9px;font-size:13px}\n.mfsh-trigger.mfsh-inmeta 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American aircraft flew more than 870 sorties against the &#8220;Dragon&#8217;s Jaw&#8221; south of Hanoi and lost 11 aircraft doing it. Then, in the spring of 1972, a handful of Phantom crews from the 8th Tactical Fighter Wing did what hundreds of earlier missions could not &#8211; with bombs that steered themselves onto a spot of invisible light.<\/p>\n<p>That is the whole trick of the laser-guided bomb: someone points a laser at the target, and a cheap kit bolted onto an ordinary &#8220;dumb&#8221; bomb follows the reflection down. Half a century later the same principle still flies on almost every Western strike jet. Here is how a laser-guided bomb actually works, from the seeker in its nose to the reasons GPS never replaced it.<\/p>\n\n\n\n<div style=\"background:#f4f6f9;border-left:4px solid #5C91FF;padding:18px 22px;margin:28px 0\"><p style=\"margin:0 0 10px;font-weight:700;color:#0d1117;font-size:17px\">Quick Facts<\/p><p style=\"margin:5px 0;font-size:15px;color:#333\"><strong>Principle:<\/strong> Semi-active laser homing: the bomb follows laser energy reflected from the target<\/p><p style=\"margin:5px 0;font-size:15px;color:#333\"><strong>Inventor:<\/strong> Texas Instruments (Weldon Word) with the USAF at Eglin AFB, from 1964<\/p><p style=\"margin:5px 0;font-size:15px;color:#333\"><strong>First combat:<\/strong> Combat evaluation in Vietnam, May&#8211;August 1968<\/p><p style=\"margin:5px 0;font-size:15px;color:#333\"><strong>Laser:<\/strong> Pulsed near-infrared, typically 1,064 nm, with a matching pulse code<\/p><p style=\"margin:5px 0;font-size:15px;color:#333\"><strong>Typical weapon:<\/strong> GBU-12 Paveway II: 500 lb (227 kg) Mk 82 bomb plus guidance kit<\/p><p style=\"margin:5px 0;font-size:15px;color:#333\"><strong>Main limit:<\/strong> Clouds, smoke, dust and rain block the laser<\/p><p style=\"margin:5px 0;font-size:15px;color:#333\"><strong>Production:<\/strong> Raytheon had delivered 250,000 Paveway kits by 2004<\/p><\/div>\n\n\n<h2 style=\"padding-top:22px\">From a Texas Lab to the Dragon&#8217;s Jaw<\/h2>\n\n\n<p>The laser-guided bomb was born in 1964, when Texas Instruments engineer Weldon Word and Col. Joseph Davis Jr. of the Air Proving Ground at Eglin Air Force Base set out to adapt Army laser technology to bombs. Davis wanted a weapon accurate to within about 30 feet; Word promised working prototypes for less than $100,000. The first test drop, on a 750 lb M117 bomb, came in April 1965.<\/p>\n<p>The Air Force called the programme Paveway. In combat trials with the 8th Tactical Fighter Wing at Ubon, Thailand, between May and August 1968, the 2,000 lb Mk 84 version averaged a miss distance of about 20 feet (6 m). The competing BOLT-117 managed roughly 75 feet. Texas Instruments won, and its kit was cheap &#8211; a few thousand dollars, against tens of thousands for TV-guided weapons.<\/p>\n<p>The real proof came in 1972. On 27 April and again on 13 May, 8th TFW <a href=\"https:\/\/migflug.com\/aircraft\/f-4-phantom-ii\/\">F-4 Phantom II<\/a>s attacked the Thanh Hoa Bridge with laser-guided bombs, some of them 3,000 lb monsters. On 13 May the western span was knocked off its massive concrete abutment. Between February 1972 and February 1973 the Air Force dropped more than 10,500 laser-guided bombs; about 5,100 were direct hits and roughly 4,000 more landed within 25 feet.<\/p>\n\n\n\n<div style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:24px 0 8px\"><iframe class=\"skip-lazy\" data-no-lazy=\"1\" loading=\"eager\" src=\"https:\/\/www.youtube.com\/embed\/VK789RHM5fw\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0\" allowfullscreen><\/iframe><\/div><p style=\"font-size:13px;color:#777;text-align:center;margin:0 0 24px;font-style:italic\">Archive footage on the development of the laser-guided bomb from 1960 to 1972.<\/p>\n\n\n\n<p>Those early missions used two aircraft. One Phantom carried the bombs; another carried the Pave Knife pod, a stabilised laser designator whose crew held the beam on the aim point until impact. That division of labour &#8211; one platform lights, another shoots &#8211; still defines how laser-guided bombs are used today.<\/p>\n\n\n<h2 style=\"padding-top:22px\">The Laser: An Invisible, Coded Pointer<\/h2>\n\n\n<p>The designator fires short, powerful pulses of near-infrared light, typically at a wavelength of 1,064 nanometres &#8211; invisible to the eye. Each pulse lasts only around 10 to 20 nanoseconds, and pulses typically repeat 10 to 20 times per second. Where the beam hits the target, the energy scatters in all directions. Crews call this reflection the &#8220;sparkle&#8221;.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" style=\"margin:0 0 24px;width:100%\"><img decoding=\"async\" class=\"skip-lazy\" data-no-lazy=\"1\" loading=\"eager\" width=\"1024\" src=\"https:\/\/migflug.com\/afterburner\/wp-content\/uploads\/sites\/4\/2026\/10\/how-does-laser-guided-bomb-work-paveway-img2.jpg\" alt=\"Pave Knife laser designator pod under the wing of an 8th Tactical Fighter Wing F-4D Phantom II in 1973\" style=\"width:100%;height:auto;max-width:100%;display:block\"><figcaption style=\"font-size:13px;color:#777;text-align:center;margin-top:6px;font-style:italic\">A Pave Knife laser designator pod on an F-4D of the 435th Tactical Fighter Squadron, 8th Tactical Fighter Wing, at Ubon in 1973. Photo: U.S. Air Force<\/figcaption><\/figure>\n\n\n\n<p>Each pulse train carries a code, set by its pulse repetition frequency (PRF). The designator and the bomb are set to the same code, and the seeker checks the timing between pulses before it accepts any signal. That way, several designators can work on one battlefield without bombs chasing the wrong spot, and a stray laser on another code is simply ignored.<\/p>\n<p>This is why the system is called semi-active. The bomb carries no transmitter of its own; it is a passive receiver tuned to one specific signal. All the expensive, heavy hardware &#8211; the laser, the stabilised optics, the operator &#8211; stays on the aircraft or with the soldier on the ground.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" style=\"margin:0 0 24px;width:100%\"><svg viewBox=\"0 0 800 400\" width=\"100%\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" role=\"img\" aria-label=\"Geometry of a laser-guided bomb attack: designator, laser spot, reflected energy, basket and bomb path\" style=\"background:#ffffff\" font-family=\"Montserrat,Helvetica,Arial,sans-serif\"><text x=\"20\" y=\"28\" font-size=\"17\" font-weight=\"700\" fill=\"#0d1117\">Who lights the target, who drops the bomb<\/text><line x1=\"0\" y1=\"340\" x2=\"800\" y2=\"340\" stroke=\"#0d1117\" stroke-width=\"2\"\/><polygon points=\"560,330 150,90 390,60\" fill=\"#5C91FF\" fill-opacity=\"0.12\" stroke=\"#5C91FF\" stroke-width=\"1\" stroke-dasharray=\"5 4\"\/><text x=\"20\" y=\"160\" font-size=\"13\" font-weight=\"700\" fill=\"#5C91FF\">THE BASKET (shaded cone)<\/text><text x=\"20\" y=\"177\" font-size=\"11\" fill=\"#0d1117\">release zone from which the seeker<\/text><text x=\"20\" y=\"191\" font-size=\"11\" fill=\"#0d1117\">can see the spot and still reach it<\/text><rect x=\"535\" y=\"316\" width=\"50\" height=\"24\" fill=\"#0d1117\"\/><rect x=\"550\" y=\"306\" width=\"22\" height=\"12\" fill=\"#0d1117\"\/><text x=\"560\" y=\"362\" font-size=\"12\" fill=\"#0d1117\" text-anchor=\"middle\">Target<\/text><circle cx=\"560\" cy=\"310\" r=\"6\" fill=\"#5C91FF\"\/><line x1=\"560\" y1=\"310\" x2=\"541.2\" y2=\"258.3\" stroke=\"#5C91FF\" stroke-width=\"1.5\" stroke-dasharray=\"3 3\"\/><line x1=\"560\" y1=\"310\" x2=\"524.6\" y2=\"267.9\" stroke=\"#5C91FF\" stroke-width=\"1.5\" stroke-dasharray=\"3 3\"\/><line x1=\"560\" y1=\"310\" x2=\"512.4\" y2=\"282.5\" stroke=\"#5C91FF\" stroke-width=\"1.5\" stroke-dasharray=\"3 3\"\/><line x1=\"560\" y1=\"310\" x2=\"505.8\" y2=\"300.4\" stroke=\"#5C91FF\" stroke-width=\"1.5\" stroke-dasharray=\"3 3\"\/><text x=\"470\" y=\"262\" font-size=\"11\" fill=\"#0d1117\" text-anchor=\"end\">reflected &#8220;sparkle&#8221;<\/text><circle cx=\"740\" cy=\"300\" r=\"7\" fill=\"#0d1117\"\/><line x1=\"740\" y1=\"307\" x2=\"740\" y2=\"328\" stroke=\"#0d1117\" stroke-width=\"3\"\/><line x1=\"740\" y1=\"328\" x2=\"732\" y2=\"340\" stroke=\"#0d1117\" stroke-width=\"3\"\/><line x1=\"740\" y1=\"328\" x2=\"748\" y2=\"340\" stroke=\"#0d1117\" stroke-width=\"3\"\/><line x1=\"735\" y1=\"304\" x2=\"565\" y2=\"310\" stroke=\"#5C91FF\" stroke-width=\"2.5\"\/><text x=\"740\" y=\"286\" font-size=\"12\" font-weight=\"700\" fill=\"#0d1117\" text-anchor=\"middle\">JTAC<\/text><text x=\"740\" y=\"362\" font-size=\"11\" fill=\"#0d1117\" text-anchor=\"middle\">ground designator<\/text><polygon points=\"650,82 700,74 708,82 700,90\" fill=\"#0d1117\"\/><line x1=\"660\" y1=\"88\" x2=\"563\" y2=\"304\" stroke=\"#5C91FF\" stroke-width=\"2.5\" stroke-dasharray=\"10 5\"\/><text x=\"640\" y=\"66\" font-size=\"12\" font-weight=\"700\" fill=\"#0d1117\" text-anchor=\"end\">Pod-equipped jet<\/text><text x=\"640\" y=\"81\" font-size=\"11\" fill=\"#0d1117\" text-anchor=\"end\">self- or buddy-lasing<\/text><polygon points=\"70,70 120,62 128,70 120,78\" fill=\"#0d1117\"\/><text x=\"20\" y=\"100\" font-size=\"12\" font-weight=\"700\" fill=\"#0d1117\">Releasing jet<\/text><path d=\"M 125 74 Q 330 80 445 175 Q 520 245 556 304\" fill=\"none\" stroke=\"#0d1117\" stroke-width=\"2\"\/><polygon points=\"0,-6 14,0 0,6\" transform=\"translate(445,175) rotate(42)\" fill=\"#0d1117\"\/><text x=\"380\" y=\"214\" font-size=\"11\" fill=\"#0d1117\" text-anchor=\"end\">bomb falls ballistically, then<\/text><text x=\"380\" y=\"228\" font-size=\"11\" fill=\"#0d1117\" text-anchor=\"end\">steers once it acquires the spot<\/text><text x=\"20\" y=\"388\" font-size=\"11\" fill=\"#8a94a6\">Schematic, not to scale. Laser: pulsed, invisible near-infrared (typically 1,064 nm), coded so the bomb only follows its own designator.<\/text><\/svg><figcaption style=\"font-size:13px;color:#777;text-align:center;margin-top:6px;font-style:italic\">The basic geometry of a laser-guided bomb attack. The designator can be the releasing jet itself, another aircraft or a controller on the ground. Graphic: Afterburner<\/figcaption><\/figure>\n\n\n<h2 style=\"padding-top:22px\">The Seeker: Four Quadrants and a Simple Question<\/h2>\n\n\n<p>The heart of the bomb sits in its nose. Behind a glass dome, a lens focuses the reflected laser energy onto a detector split into four quadrants. If the target lies dead ahead, the spot lands in the centre and all four quadrants receive equal energy. If the target is up and to the right, most energy falls on the upper-right quadrant.<\/p>\n<p>The guidance electronics compare the four signals continuously and generate up-down and left-right error commands. Those drive the canards on the front of the kit, which steer the bomb until the signal is balanced again. The question the seeker asks is brutally simple: where is the spot relative to where I am going?<\/p>\n<p>On Paveway I and II the seeker sat in a free-swivelling housing with a ring-shaped tail, so it aligned itself with the airflow and looked along the direction the bomb was actually travelling. Weldon Word later said the probe resembled a badminton shuttlecock, and the name &#8220;birdie head&#8221; stuck. At the back, fixed or pop-out wings keep the weapon stable; they do not steer.<\/p>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #5C91FF;padding:20px 22px;margin:18px 0 24px;font-size:16px;line-height:1.7\"><div><em>&ldquo;Laser guided bombs have been the &#8216;weapon of choice&#8217; in every conflict since Operation Desert Storm. Approximately 10,000 LGBs were used in Operation Iraqi Freedom, accounting for approximately half of all the air launched precision guided munitions.&rdquo;<\/em><div style=\"margin-top:10px;font-size:14px;color:#555\"><strong>Maj. Jose Delarosa<\/strong> &mdash; U.S. Air Force Paveway II program manager, Hill AFB, 2004<\/div><\/div><\/div>\n\n\n<h2 style=\"padding-top:22px\">The Basket and the Bang-Bang<\/h2>\n\n\n<p>A laser-guided bomb cannot fly to just anywhere. It must be released inside an invisible cone above and in front of the target, its narrow end on the laser spot. Pilots call this the basket. Release outside it and the seeker either never sees the spot or lacks the energy to reach it.<\/p>\n<p>Paveway I and II steered with bang-bang control: the canards were either fully deflected or neutral, never anything in between. The result is a bomb that weaves its way down in a visible sine-wave path, constantly over-correcting. It is accurate &#8211; the GBU-12 is credited with a circular error probable of about 1 metre in Raytheon tests &#8211; but each full-deflection flick costs energy and range.<\/p>\n<p>To save energy, crews often release the bomb ballistically and switch the laser on only late in the fall, so the weapon does not start manoeuvring too early. Timing is critical: lase too late and the bomb cannot correct its error; lase too early and it may bleed off speed and fall short.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" style=\"margin:0 0 24px;width:100%\"><img decoding=\"async\" class=\"skip-lazy\" data-no-lazy=\"1\" loading=\"eager\" width=\"1024\" src=\"https:\/\/migflug.com\/afterburner\/wp-content\/uploads\/sites\/4\/2026\/10\/how-does-laser-guided-bomb-work-paveway-img1.jpg\" alt=\"U.S. Navy ordnancemen loading GBU-12 Paveway II laser-guided bombs onto an F-14B Tomcat aboard USS Harry S. Truman in 2004\" style=\"width:100%;height:auto;max-width:100%;display:block\"><figcaption style=\"font-size:13px;color:#777;text-align:center;margin-top:6px;font-style:italic\">Ordnancemen of VF-32 prepare to load GBU-12 Paveway II laser-guided bombs onto an F-14B Tomcat aboard USS Harry S. Truman in the Persian Gulf, December 2004. Photo: U.S. Navy<\/figcaption><\/figure>\n\n\n<h2 style=\"padding-top:22px\">Paveway III: Smarter Steering<\/h2>\n\n\n<p>By the late 1970s the bang-bang bombs had a problem with low-level attacks. Released close to the ground, the seeker saw the spot too early and pitched the bomb down, cutting its range. Texas Instruments answered with Paveway III, which entered service in the mid-1980s on 2,000 lb class weapons such as the GBU-24.<\/p>\n<p>Paveway III uses a microprocessor autopilot with proportional control: canard deflection matches the size of the error, giving a smooth, energy-efficient flight path. A wider field-of-view scanning seeker and larger wings let it be lobbed from low level and fly much farther. The <a href=\"https:\/\/migflug.com\/aircraft\/f-117-nighthawk\/\">F-117<\/a> carried a variant, the GBU-27, and the GBU-28 bunker buster was rushed into service in 1991 on a Paveway III guidance package.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\" style=\"margin:0 0 24px;width:100%\"><svg viewBox=\"0 0 800 360\" width=\"100%\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" role=\"img\" aria-label=\"Quadrant detector principle and bang-bang versus proportional guidance paths\" style=\"background:#ffffff\" font-family=\"Montserrat,Helvetica,Arial,sans-serif\"><text x=\"20\" y=\"28\" font-size=\"17\" font-weight=\"700\" fill=\"#0d1117\">Inside the seeker, and what the bomb does with it<\/text><rect x=\"60\" y=\"90\" width=\"180\" height=\"180\" fill=\"#f4f6f9\" stroke=\"#0d1117\" stroke-width=\"2\"\/><line x1=\"150\" y1=\"90\" x2=\"150\" y2=\"270\" stroke=\"#0d1117\" stroke-width=\"2\"\/><line x1=\"60\" y1=\"180\" x2=\"240\" y2=\"180\" stroke=\"#0d1117\" stroke-width=\"2\"\/><text x=\"72\" y=\"112\" font-size=\"14\" font-weight=\"700\" fill=\"#8a94a6\">A<\/text><text x=\"218\" y=\"112\" font-size=\"14\" font-weight=\"700\" fill=\"#8a94a6\">B<\/text><text x=\"72\" y=\"260\" font-size=\"14\" font-weight=\"700\" fill=\"#8a94a6\">C<\/text><text x=\"218\" y=\"260\" font-size=\"14\" font-weight=\"700\" fill=\"#8a94a6\">D<\/text><circle cx=\"178\" cy=\"158\" r=\"18\" fill=\"#5C91FF\" fill-opacity=\"0.85\"\/><text x=\"150\" y=\"296\" font-size=\"12\" font-weight=\"700\" fill=\"#0d1117\" text-anchor=\"middle\">Four-quadrant detector<\/text><text x=\"150\" y=\"314\" font-size=\"11\" fill=\"#0d1117\" text-anchor=\"middle\">Spot lands mostly on B: target is up<\/text><text x=\"150\" y=\"328\" font-size=\"11\" fill=\"#0d1117\" text-anchor=\"middle\">and right. Steer until all four are equal.<\/text><line x1=\"330\" y1=\"300\" x2=\"780\" y2=\"300\" stroke=\"#0d1117\" stroke-width=\"2\"\/><rect x=\"749\" y=\"286\" width=\"22\" height=\"14\" fill=\"#0d1117\"\/><circle cx=\"760\" cy=\"286\" r=\"5\" fill=\"#5C91FF\"\/><polyline points=\"330.0,80.0 356.9,102.2 383.8,74.2 410.6,115.8 437.5,94.6 464.4,134.4 491.2,119.2 518.1,156.7 545.0,147.1 571.9,182.1 598.8,177.7 625.6,209.9 652.5,210.7 679.4,240.0 706.2,245.9 733.1,272.2 760.0,286.0\" fill=\"none\" stroke=\"#8a94a6\" stroke-width=\"2\"\/><path d=\"M 330 80 Q 640 90 760 286\" fill=\"none\" stroke=\"#5C91FF\" stroke-width=\"2.5\"\/><circle cx=\"330\" cy=\"80\" r=\"5\" fill=\"#0d1117\"\/><text x=\"324\" y=\"66\" font-size=\"11\" fill=\"#0d1117\">release<\/text><rect x=\"340\" y=\"226\" width=\"14\" height=\"4\" fill=\"#8a94a6\"\/><text x=\"360\" y=\"232\" font-size=\"12\" fill=\"#0d1117\"><tspan font-weight=\"700\">Bang-bang<\/tspan> (Paveway I\/II)<\/text><text x=\"360\" y=\"247\" font-size=\"11\" fill=\"#0d1117\">full canard flicks, weaving path<\/text><rect x=\"340\" y=\"263\" width=\"14\" height=\"4\" fill=\"#5C91FF\"\/><text x=\"360\" y=\"269\" font-size=\"12\" fill=\"#0d1117\"><tspan font-weight=\"700\">Proportional<\/tspan> (Paveway III)<\/text><text x=\"360\" y=\"284\" font-size=\"11\" fill=\"#0d1117\">smooth, energy-efficient arc<\/text><text x=\"20\" y=\"350\" font-size=\"11\" fill=\"#8a94a6\">Schematic, not to scale.<\/text><\/svg><figcaption style=\"font-size:13px;color:#777;text-align:center;margin-top:6px;font-style:italic\">Left: how a four-quadrant detector turns spot position into steering commands. Right: bang-bang versus proportional guidance. Graphic: Afterburner<\/figcaption><\/figure>\n\n\n<h2 style=\"padding-top:22px\">Self-Lasing, Buddy-Lasing and the JTAC<\/h2>\n\n\n<p>Today there are three ways to light a target. In self-lasing, the bombing aircraft carries its own targeting pod, such as Sniper or LITENING, and designates its own bomb. A single <a href=\"https:\/\/migflug.com\/aircraft\/f-15-eagle\/\">F-15E Strike Eagle<\/a> crew can find, lase and hit a target alone.<\/p>\n<p>In buddy-lasing, one aircraft designates for another &#8211; the Pave Knife method of 1972. It lets a jet without a pod, or one whose pod is busy, drop on a target someone else is holding. The third method puts the designator on the ground. Joint terminal attack controllers (JTACs) and special forces use handheld or tripod-mounted designators to mark targets for aircraft overhead, often in close contact with the enemy.<\/p>\n\n\n\n<div style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:24px 0 8px\"><iframe class=\"skip-lazy\" data-no-lazy=\"1\" loading=\"eager\" src=\"https:\/\/www.youtube.com\/embed\/iojoe1T7YIc\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0\" allowfullscreen><\/iframe><\/div><p style=\"font-size:13px;color:#777;text-align:center;margin:0 0 24px;font-style:italic\">What joint terminal attack controllers do: the New Zealand Army&#8217;s JTACs explain. Video: NZ Defence Force<\/p>\n\n\n\n<p>Ground lasing is the most precise way to put a bomb exactly where friendly troops need it, because the controller can see what the pilot cannot. It also explains why laser codes matter so much: on a busy battlefield, several designators and several bombs can be in the air at once.<\/p>\n\n\n<h2 style=\"padding-top:22px\">Weather: The Laser&#8217;s Achilles Heel<\/h2>\n\n\n<p>A laser needs a clear line of sight from designator to target, and from target to bomb. Low cloud, rain, fog, smoke and dust all scatter or absorb the beam. During the 1991 Gulf War, bad weather repeatedly hampered laser- and infrared-guided strikes &#8211; one of the lessons that pushed the Pentagon towards satellite guidance.<\/p>\n<p>The designator also has to keep the spot steady on the aim point until impact. If it loses the target, or the laser stops, a pure laser-guided bomb loses guidance and falls ballistically. That vulnerability drove the next step.<\/p>\n\n\n<h2 style=\"padding-top:22px\">Enhanced Paveway and Why JDAM Did Not Kill the Laser<\/h2>\n\n\n<p>GPS-guided bombs arrived in force in the late 1990s. The JDAM, in service from 1999, steers to satellite coordinates through cloud, rain and smoke with an accuracy of around 5 metres. Many predicted the end of the laser-guided bomb.<\/p>\n<p>It did not happen. The answer was to combine both. Enhanced Paveway kits, which became operational in 2000, add a GPS-aided inertial unit to the laser seeker: GPS gets the bomb close in any weather, the laser provides the final precision. If the laser spot is lost, the bomb continues to the GPS coordinates.<\/p>\n\n\n\n<div style=\"background:#f8f9fa;border-left:4px solid #5C91FF;padding:20px 22px;margin:18px 0 24px;font-size:16px;line-height:1.7\"><div><em>&ldquo;This variant builds on the strengths of the current combat-proven Enhanced Paveway&#8482; II, integrating evolutionary technologies to the dual-mode global positioning\/laser systems.&rdquo;<\/em><div style=\"margin-top:10px;font-size:14px;color:#555\"><strong>Harry Schulte<\/strong> &mdash; Vice President, Air Warfare Systems, Raytheon Missile Systems, 2013<\/div><\/div><\/div>\n\n\n\n<p>Two things keep the laser in the game. First, GPS can only hit a fixed coordinate; a laser can follow a target that moves &#8211; a truck, a boat, a tank. Boeing itself added a laser seeker to its JDAM to create the Laser JDAM for exactly that reason. Second, a human designator can adjust the aim point to the last second, which matters enormously in close air support.<\/p>\n<p>The numbers back it up. In the 2003 invasion of Iraq, laser-guided bombs made up 29.5 percent of the munitions dropped, against 22.4 percent for JDAM. The RAF&#8217;s current Paveway IV, in service since 2008, is a dual-mode GPS and laser weapon from the start.<\/p>\n\n\n\n<div style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin:24px 0 8px\"><iframe class=\"skip-lazy\" data-no-lazy=\"1\" loading=\"eager\" src=\"https:\/\/www.youtube.com\/embed\/bdM9WQFSqf0\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;border:0\" allowfullscreen><\/iframe><\/div><p style=\"font-size:13px;color:#777;text-align:center;margin:0 0 24px;font-style:italic\">The RAF&#8217;s Paveway IV, a dual-mode GPS and laser-guided bomb, explained in two minutes. Video: BFBS Forces News<\/p>\n\n\n<h2 style=\"padding-top:22px\">Sixty Years of the Same Simple Idea<\/h2>\n\n\n<p>The laser-guided bomb has outlasted the Tomcat and the F-117 that once carried it, and most of the Phantoms too. Its genius lies in what it does not contain: no radar, no transmitter, no expensive sensor. It is a dumb bomb with a cheap eye and a pair of small canards, and a human somewhere holding a dot of light on the right spot.<\/p>\n<p>More than half a century after the Dragon&#8217;s Jaw fell, that formula is still hard to beat. GPS made bombs independent of the weather. The laser keeps them honest at the last second.<\/p>\n\n\n\n<p><em>Sources: Air &amp; Space Forces Magazine, National Museum of the U.S. Air Force, Invention &amp; Technology, Raytheon, Designation-Systems.net, Defence Science Journal (DRDO), Electronics For You, Wikipedia, U.S. Air Force, U.S. Navy<\/em><\/p>\n\n\n\n<!-- mfsh:bottom -->\n\n<button type=\"button\" class=\"mfsh-trigger mfsh-bottom\" data-mfsh-placement=\"bottom\" aria-haspopup=\"dialog\"><svg><use href=\"#mfsh-i-share\"\/><\/svg>Share this story<\/button>\n\n<!-- \/mfsh:bottom -->\n\n\n\n<style>.mfq{margin:34px 0 8px}.mfq h2{font:26px\/1.3 \"Gilroy semiBold\",Helvetica,Arial,sans-serif;color:#0d1117;padding-top:22px;margin:0 0 6px}.mfq .qa details{border-top:1px solid #5C91FF;margin:0;padding:0}.mfq .qa details:last-of-type{border-bottom:1px solid #e2e7ee}.mfq .qa summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:22px 26px;font:18px\/1.7 \"Gilroy semiBold\",Helvetica,Arial,sans-serif;color:#0d1117}.mfq .qa summary::-webkit-details-marker{display:none}.mfq .qa summary::after{content:\"+\";font:24px Helvetica,sans-serif;color:#3568e0;flex:0 0 auto}.mfq .qa details[open] summary::after{content:\"\\2013\"}.mfq .qa details:hover summary{color:#3568e0}.mfq .qa .a{font:16px\/1.7 \"Gilroy regular\",Helvetica,Arial,sans-serif;color:#454e5e;padding:0 26px 24px}.mfq .qa .a a{color:#3568e0}@media(max-width:680px){.mfq .qa summary{padding:18px 14px;font-size:17px}.mfq .qa .a{padding:0 14px 20px}}<\/style>\n\n\n<section class=\"mfq\"><h2>Frequently Asked Questions<\/h2><div class=\"qa\"><details open><summary>How does a laser-guided bomb find its target?<\/summary><div class=\"a\">A laser-guided bomb follows laser energy reflected from the target. A designator on an aircraft or on the ground fires coded near-infrared pulses at the aim point, and a seeker in the bomb's nose detects the reflection on a four-quadrant detector. Electronics compare the four signals and move the front canards until the spot is centred.<\/div><\/details><details><summary>Who invented the laser-guided bomb?<\/summary><div class=\"a\">The laser-guided bomb was developed from 1964 by Texas Instruments, with engineer Weldon Word working with Col. Joseph Davis Jr. of the Air Proving Ground at Eglin Air Force Base. The US Air Force named the programme Paveway and evaluated it in combat in Vietnam between May and August 1968.<\/div><\/details><details><summary>What is the basket in laser-guided bombing?<\/summary><div class=\"a\">The basket is the cone-shaped zone above and in front of the target, with its narrow end on the laser spot, from which a laser-guided bomb must be released. Inside it, the seeker can see the reflected laser energy and the bomb has enough energy to steer onto the target. Outside it, the bomb will miss.<\/div><\/details><details><summary>What is the difference between Paveway II and Paveway III guidance?<\/summary><div class=\"a\">Paveway II uses bang-bang control: its canards are either fully deflected or neutral, producing a weaving path that wastes energy. Paveway III, which entered service in the mid-1980s, uses proportional control matched to the size of the error, a wider field-of-view seeker and larger wings, giving a smoother path and much longer range.<\/div><\/details><details><summary>What are laser codes on a laser-guided bomb?<\/summary><div class=\"a\">Laser codes are pulse repetition frequency settings shared by the designator and the laser-guided bomb. The seeker checks the timing between pulses and only follows a laser with the matching code. This lets several designators and bombs work in the same area without a weapon chasing the wrong spot.<\/div><\/details><details><summary>Why are laser-guided bombs still used after JDAM?<\/summary><div class=\"a\">JDAM steers to fixed GPS coordinates, so it cannot follow a moving target. A laser-guided bomb follows a spot that a designator can move with a vehicle or adjust at the last second. Dual-mode weapons such as Enhanced Paveway and Paveway IV combine GPS for bad weather with a laser seeker for final precision.<\/div><\/details><details><summary>Does bad weather stop laser-guided bombs?<\/summary><div class=\"a\">Yes. A laser-guided bomb needs a clear line of sight from the designator to the target and from the target to the seeker. Low cloud, rain, fog, smoke and dust scatter or absorb the beam. If the spot is lost, a pure laser-guided bomb falls ballistically, which is why GPS-aided Enhanced Paveway kits were introduced.<\/div><\/details><\/div><\/section>\n\n\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"How does a laser-guided bomb find its target?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"A laser-guided bomb follows laser energy reflected from the target. A designator on an aircraft or on the ground fires coded near-infrared pulses at the aim point, and a seeker in the bomb's nose detects the reflection on a four-quadrant detector. Electronics compare the four signals and move the front canards until the spot is centred.\"}},{\"@type\":\"Question\",\"name\":\"Who invented the laser-guided bomb?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The laser-guided bomb was developed from 1964 by Texas Instruments, with engineer Weldon Word working with Col. 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American aircraft flew more than 870 sorties against the &#8220;Dragon&#8217;s Jaw&#8221; south of Hanoi and lost 11 aircraft doing it. Then, in the spring of 1972, a handful of Phantom crews from the 8th Tactical Fighter Wing did what hundreds of [&hellip;]<\/p>\n","protected":false},"author":23,"featured_media":29114959,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"editor_notices":[],"footnotes":""},"categories":[665,664],"tags":[],"class_list":["post-29115003","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-aviation-world","category-military-aviation"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How Does a Laser-Guided Bomb Work? | MiGFlug<\/title>\n<meta name=\"description\" content=\"How a laser-guided bomb works: Paveway seekers, laser codes, the basket, bang-bang vs proportional guidance, JTACs, weather limits and GPS hybrids.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/migflug.com\/afterburner\/it\/how-does-laser-guided-bomb-work-paveway\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How Does a Laser-Guided Bomb Work? | MiGFlug\" \/>\n<meta property=\"og:description\" content=\"How a laser-guided bomb works: Paveway seekers, laser codes, the basket, bang-bang vs proportional guidance, JTACs, weather limits and GPS hybrids.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/migflug.com\/afterburner\/it\/how-does-laser-guided-bomb-work-paveway\/\" \/>\n<meta property=\"og:site_name\" content=\"Afterburner - MiGFlug&#039;s Magazine\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/MiGFlug\/\" \/>\n<meta property=\"article:published_time\" content=\"2026-10-22T09:15:48+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-22T09:15:54+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/migflug.com\/afterburner\/wp-content\/uploads\/sites\/4\/2026\/10\/how-does-laser-guided-bomb-work-paveway-featured.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1600\" \/>\n\t<meta property=\"og:image:height\" content=\"900\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Max Gr\u00fcnwald\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@migflug\" \/>\n<meta name=\"twitter:site\" content=\"@migflug\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Max Gr\u00fcnwald\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"13 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/migflug.com\\\/afterburner\\\/how-does-laser-guided-bomb-work-paveway\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/migflug.com\\\/afterburner\\\/how-does-laser-guided-bomb-work-paveway\\\/\"},\"author\":{\"name\":\"Max Gr\u00fcnwald\",\"@id\":\"https:\\\/\\\/migflug.com\\\/afterburner\\\/it\\\/#\\\/schema\\\/person\\\/da89e4a5834c9a932ee20751ed75569c\"},\"headline\":\"How Does a Laser-Guided Bomb Work? 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