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M163 Vulcan Air Defense System (VADS)


Self-Propelled Anti-Aircraft Gun


United States | 1969



"The devastating M163 Vulcan is based on the M113 Armored Personnel Carrier fitted with a 20mm M61 Vulcan Gatling cannon."

Power & Performance
Those special qualities that separate one land system design from another. Performance specifications presented assume optimal operating conditions for the M163 Vulcan Air Defense System (VADS) Self-Propelled Anti-Aircraft Gun.
1 x General Motors 6V53 6-cylinder 2-cycle diesel-fueled developing 212 horsepower at 2,800rpm driving conventional track-and-wheel arrangement.
Installed Power
40 mph
64 kph
Road Speed
298 miles
480 km
Range
Structure
The physical qualities of the M163 Vulcan Air Defense System (VADS) Self-Propelled Anti-Aircraft Gun.
4
(MANNED)
Crew
15.9 ft
4.86 meters
O/A Length
8.9 ft
2.7 meters
O/A Width
9.6 ft
2.92 meters
O/A Height
27,542 lb
12,493 kg | 13.8 tons
Weight
Armament & Ammunition
Available supported armament, ammunition, and special-mission equipment featured in the design of the M163 Vulcan Air Defense System (VADS) Self-Propelled Anti-Aircraft Gun.
1 x 20mm Gattling Gun
AMMUNITION:
2,100 x 20mm ammunition
Variants
Notable series variants as part of the M163 Vulcan Air Defense System (VADS) family line.
M163 - Base Series Designation
M163A1 - Gun Mount modification to M113A1 APC standard.
M163A2 - Powertrain upgrade to M113A2 APC standard.
M163 PIVADS - Upraded targeting system; appearing in 1984.
M167 - Towed Turret Variant of M163
"Machbet" - Israeli Variant; fitted with 4 x FIM-92 Stinger short-range missile systems; upgrading tracking suite; data sharing.


Authored By: Staff Writer | Last Edited: 07/02/2019 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.

The M163 Vulcan Air Defense System (VADS) mated the firepower of the United States Air Force's standard aerial cannon - the M61 Vulcan - with the proven "go-anywhere" hull of the M113 Armored Personnel Carrier (APC). Its tracked nature ensured that the M163 could reach areas that were generally forbidden to wheeled systems of similar scope and function. Additionally, the firepower inherent in the M61 Vulcan Gatling cannon brought about hearty point defense deterrent against any low-flying enemy aircraft willing to enter its available kill zone. The M163 was formally accepted into US Army service in 1969 and went on to see export to several US-friendly nations during the Cold War.

Development of the M163 coincided with the development of the US Army's other air defense project - the missile-minded MIM-72A/M48 "Chaparral". The Chaparral system was also built atop the tracked M113 chassis and featured a forward-set cab for its operating crew and a positional, four-missile launch system mounting a surface-to-air version of the air-to-air AIM-9 Sidewinder short-ranged missile. The Chaparral served from 1969 to 1998 and nearly 2,000 examples were produced. The M163 Vulcan would be fielded alongside the M48 Chaparral to complete the network by providing a potent short-ranged "one-two" punch utilizing both homing missiles and voluminous fire.

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The strong arm of the M163 Vulcan air defense system was its installation of the M61 Vulcan cannon. The rotary cannon was 20mm in caliber and fitted to a powered turret offering 360-degree traverse. Elevation was limited to +80 and -5 and effective range was out to 5 kilometers depending on ammunition type. The cannon could be set to fire at a high rate-of-fire at 3,000 rounds per minute or low at 1,000 rounds per minute in 10, 30, 60 or 100 round bursts. The feed system of linkless in nature. Ammunition variety was key to the success of the M163 and differing types were eventually offered. This included Armored Piercing Incendiary, High-Explosive Incendiary, HEI-T, MPT-SD, SAPHEI and APDS type rounds.

Beyond the installation of the gun, the chassis of the M113 remained largely intact for the M163. The design was characterized by its slab sides, sloped front glacis plate and squared off rear section. The turret was mounted at the middle-center of the hull roof. A pair of tracks straddled the hull sides and featured five rubber-tired road wheels with the drive sprocket at the front hull and the track idler at the rear. A crew of four was the operating ground and included the driver, seated at front left, the commander, gunner and loader. The rear loading ramp from the M113 was also retained. The powerplant, seated in the front hull, is a General Motors 6V53 series 6-cylinder 2-cycle diesel engine developing 212 horsepower @ 2,800rpm.

In 1984, Lockheed Electronics Company introduced a modernization kit known as the PIVADS (Product Improved Vulcan Air Defense System). This kit improved the radar, accuracy of the weapons system and automatic notification systems among other modifications. The ability to fire armor-piercing discarding sabot ammunition was also introduced. The kit was aimed at reducing the gunner's workload overall. While primarily designed for the air defense role, the M163 Vulcan is now used moreso in the ground support role due to her amazing ability to fire off a substantial amount of large-caliber ammunition. Additionally, the range of newer missile defense systems, other more modern close-in weapon systems and the advancing capabilities of enemy aircraft have all contributed to the lesser use of the M163 as a dedicated air defense weapon per se - though the type continues in operational service with a variety of operators as of this writing. Operators beyond the United States Army included/include Albania, Chile, Ecuador, Egypt, Iran, Israel, Jordan, Morocco, Portugal, South Korea, Thailand and Tunisia.

Though the M163 Vulcan formally debuted in 1969, at least six examples were delivered to the Vietnam War (numbered along their sides as "1" through "6") in 1968. These were delivered with non-functioning radar (dummy installations) for the tracking suite was not yet available. As such, the units were used more so for their ground support firepower and were physically aimed against the enemy or target area without (naturally) radar assistance.

The base series designation was known simply as M163. The M163A1 sported changes to the original gun mount to bring it more in line with the changes as featured in the M113A1. The M163A2 was similarly brought up to the M113A2 standard with its revised powertrain. The M163 PIVADS featured the aforementioned accuracy and workload changes/improvements and appeared in 1984. The M167 was nothing more than the gun system of the M163 in a towed-artillery form. These were original hauled by the Gama Goat mover but eventually replaced by the HMMWV ("Humvee"). The "Machbet" was the Israeli variant that also fitted 4 x FIM-92 Stinger short-range, surface-to-air missile systems along with the 20mm M61 Vulcan cannon. Additionally, the Israeli modifications produced a data-sharing system as well as improved target tracking.

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Operators
Global customers who have evaluated and/or operated the M163 Vulcan Air Defense System (VADS). Nations are displayed by flag, each linked to their respective national land systems listing.

Total Production: 2,000 Units

Contractor(s): General Electric Company, USA
National flag of Albania National flag of Chile National flag of Ecuador National flag of Egypt National flag of Iran National flag of Israel National flag of Jordan National flag of Morocco National flag of Portugal National flag of South Korea National flag of Thailand National flag of Tunisia National flag of the United States

[ Albania; Chile; Ecuador; Egypt; Iran; Israel; Jordan; Morocco; Portugal; South Korea; Thailand; Tunisia; United States ]
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Image of the M163 Vulcan Air Defense System (VADS)
High angled front right side view of the M163 Vulcan air defense system
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Image of the M163 Vulcan Air Defense System (VADS)
Right side view of the M163 Vulcan air defense system
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Image of the M163 Vulcan Air Defense System (VADS)
Rear right side view of the M163 Vulcan; note lowered rear ramp
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Image of the M163 Vulcan Air Defense System (VADS)
Protected crew exit the M163 Vulcan through the access door on the closed rear ramp
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Image of the M163 Vulcan Air Defense System (VADS)
Crew attend to the road wheels of an M163 Vulcan
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Image of the M163 Vulcan Air Defense System (VADS)
Front right view of the M163 Vulcan air defense system in a green paint scheme
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Image of the M163 Vulcan Air Defense System (VADS)
Close-up detail view of the 20mm M61 Vulcan gun system of an M163 Vulcan vehicle
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Image of the M163 Vulcan Air Defense System (VADS)
Right side view of an M163 Vulcan at speed; note infantry with Stinger missile launcher in background

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The M163 Vulcan Air Defense System (VADS) Self-Propelled Anti-Aircraft Gun appears in the following collections:
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