Monday, April 1, 2024

What are the Differences between a Ballistic Missile and a Cruise Missile?

what is cruise missile

Being able to fly close to the Earth's surface makes cruise missiles very difficult to detect, according to The Center for Arms Control and Non-Proliferation. Russian cruise missiles have also hit other Ukrainian targets in recent days, including a city council building in the eastern city of Kharkiv on Wednesday, Reuters reported the deputy governor of the region as saying. Cruise missiles deploy advanced guidance methods in the terminal phase of flight to elevate their accuracy. The hallmark characteristic of cruise missiles lies in their remarkable precision.

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what is cruise missile

The near-exclusive focus on the nuclear capacity of strategic-range weapons confined serious development of cruise and ballistic missile technology to the world’s nuclear powers—particularly the United States and the former Soviet Union. These two countries took different paths in exploiting missile technology. Soviet cruise missiles, for instance, were designed mostly for tactical antiship use rather than for threatening strategic land targets (as was the U.S. emphasis).

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The missiles donated to Ukraine are launched from specially modified Su-24 Soviet-era strike jets. Storm Shadow/SCALP was also used against the Khaddafi regime in Libya in 2011, ISIS in 2015, and by Saudi Arabia against Yemeni rebels in 2016. The IGS is a standard acceleration-based system that can roughly keep track of where the missile is located based on the accelerations it detects in the missile's motion (click here for a good introduction). Tercom uses an on-board 3-D database of the terrain the missile will be flying over.

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Launching cruise missiles feels like a strong military action for a president to take, but it’s very unlikely to be a decisive one. Terminal Phase begins when the detached warhead(s) reenter the Earth’s atmosphere and ends upon impact or detonation. During this phase, which can last for less than a minute, strategic warheads can be traveling at speeds greater than 3,200 kilometers per hour (1,988 miles per hour).

what is cruise missile

Cruise missiles are fast-moving, guided bombs that soar at a very low trajectory, parallel to the ground. They are distinct from regular (non-cruise) missiles primarily because they go really far. They are also distinct from drones, because they do not have on-the-ground pilots–instead, they fly a pre-set path–and you can only use them once. Called V-1s, after Vergeltung, the [German word for retribution, they were fired from sites in northern France and aimed at London.

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Both missile types are configurable for either conventional or nuclear warheads. Besides costs, the study also finds that there are operational obstacles to cruise missile defense of the homeland — such as the difficulty of rapidly distinguishing between incoming missiles and civilian aircraft. Another problem is the short time to find, track and respond to an incoming missile. Adversaries might also launch missile barrages that would overwhelm defenses in a specific location.

Terminal guidance can also involve TV guidance, where an operator employs a nose-mounted camera to identify the target and manually guide the missile visually. This dynamic approach allows operators to abort the strike if anomalies are detected, underscoring the human element in precision warfare. Equipped with sensors, these systems detect targets designated by laser markers. While immensely accurate, this method can be vulnerable to interference from environmental factors such as dust and smoke, potentially hindering target acquisition. Cruise missiles are renowned for dynamically altering their flight trajectory, capitalizing on both high and low altitudes. This strategic maneuver enhances their overall performance by combining the advantages of different altitudes.

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In retaliation, President Bill Clinton ordered the firing of 23 cruise missiles at Iraqi intelligence headquarters. In 1998, President Bill Clinton ordered a cruise missile strike against the El Shifa Pharmaceutical Industries plant in Sudan, under the assumption that it was a chemical weapons plant. Also in 1998, Clinton ordered troops to fire cruise missiles at Osama bin Laden in the Khost province of Afghanistan.

At the conference held by CSIS, the threat from cruise missiles was discussed as a way that other countries could attack the United States that is hard to detect by employing existing, ICBM-focused measures. The war in Ukraine has also seen the use of two European cruise missiles, the U.K.’s Storm Shadow and the French SCALP missile. The two are essentially the same, with a 340-mile range and 990-pound warhead.

Created out of desperation and meant to curb the inexorable advance of U.S. forces across the Pacific, kamikaze pilots were sent on one-way missions to target ships of the U.S. The planes were loaded with explosives, and the pilots flew low and fast to avoid detection until the last possible moment. Ballistic missiles are powered initially by a rocket or series of rockets in stages, but then follow an unpowered trajectory that arches upwards before descending to reach its intended target. The Soviet Union and China built ICBMs as well, setting up a world where a nuclear war was deterred by the prospect of mutual assured destruction. Things got real, though, on Jan. 7, 2020, when Iran launched more than a dozen ballistic missiles at two Iraqi military bases housing U.S. troops.

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Three main versions of the cruise missile were being manufactured in the United States during the mid-1980s. All were single-stage, turbofan jet-propelled missiles with a cruising speed of 885 km per hour (550 miles per hour) and weighed from 1,200 to 1,800 kg (2,700 to 3,900 pounds) each. The missiles were guided by an inertial navigation system that was updated during flight by a technique called Tercom (terrain contour matching), using contour maps stored in the system’s computerized memory. The air-launched cruise missile (ALCM) had a length of 6.3 m (20.7 feet); it attained a range of 2,500 km (1,500 miles). The Tomahawk sea-launched cruise missile (SLCM) and the Tomahawk ground-launched cruise missile (GLCM) had a length of 6.4 m (21 feet), a diameter of 53 cm (21 inches), and a range of 2,500 km (1,550 miles). Strategic missiles represent a logical step in the attempt to attack enemy forces at a distance.

Capable of carrying either a nuclear or a conventional warhead, the cruise missile was designed to have a very low radar cross section and to hug the ground while traveling at a relatively slow speed to its target. On January 17, 1991, forces of the U.N.-sponsored coalition initiated a massive aerial campaign against Iraq in response to its August 1990 invasion of Kuwait. The targets ranged from strategic facilities, such as electrical generation plants and command and control facilities in Baghdad, to tactical targets, such as deployed Iraqi Army combat units. The advantage that the submarines have over guided-missile destroyers and cruisers is the ability to remain undetected and launch while submerged. Tomahawk was deployed on US Navy attack submarines beginning in 1983, originally in LACM and ASCM versions, but the ASCM version was withdrawn in the 1990s. The Soviet Navy converted 13 Whiskey-class submarines (Project 613) for the land-attack cruise missile (LACM) role in the late 1950s (Whiskey Single Cylinder, Whiskey Twin Cylinder, Whiskey Long Bin), armed with the SS-N-3 Shaddock (П-5) missile.

“Even advanced battle management systems might be hard-pressed to respond in time,” CBO finds. However, as they near their target or potential missile defenses, they adeptly descend to lower altitudes, skimming the sea or terrain. This transition serves to elude detection and countermeasures, highlighting the adaptability of cruise missiles in various operational scenarios.

Tomahawks were subsequently used extensively in Iraq to enforce “no-fly zone” operations in the early 1990s and during the Iraq War (2003–11). They were also used in Bosnia (1995), Libya (1996 and 2011), Sudan (1998), Yemen (2009), and Afghanistan (1998 and during the Afghanistan War, which began in 2001). In 1995, the US agreed to sell 65 Tomahawks to the UK for torpedo-launch from their nuclear attack submarines. After achieving flight, the missile's wings are unfolded for lift, the airscoop is exposed and the turbofan engine is employed for cruise flight. Over water, the Tomahawk uses inertial guidance or GPS to follow a preset course; once over land, the missile's guidance system is aided by terrain contour matching (TERCOM).

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