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Rolls-Royce Armored Car


Four-Wheeled Armored Fighting Vehicle (AFV)


United Kingdom | 1915



"Despite their World War 1 origins, Rolls-Royce Armored Cars served into World War 2 during the North African Campaign."

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Authored By: Staff Writer | Last Edited: 07/13/2018 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.

Prior to the acceptance of armored combat tanks in World War 1, armies developed doctrine to include use of the Armored Car. The armored car was just as its name suggested - an automobile armored through steel plates surfaces and armed with machine guns and personal weapons carried by the crew. The design offered a simplistic approach to the Armored Fighting Vehicle (AFV) concept which quickly grew into a field all its own by the end of the war in Europe. Due to the fact that early armored cars made use of existing automotive parts and designs, they proved largely unfit for large-scale, frontline combat and were exceedingly used in policing colonial interests or internal security after the arrival of the tank and into the interwar years following the global conflict. Armored cars were one of the few military products that Germany could build after the armistice of World War 1.

World War 1 began in the summer of 1914 with Britain committing as part of the Triple Entente to include the Russian Empire and France. Germany invaded neighboring Belgium, Luxembourg and France, attempting to capture the French capital of Paris in bold early strokes of what proved a rather fluid campaign to this point. However, the German advance was halted before reaching Paris proper and lines literally formed as both sides dug in for the brutal conflict ahead. With the arrival of these lines was lost the mobile nature of the war which, at one point, promised to be over by Christmas, and gave rise to networks of trenches beginning to dot the European countryside. From then on, the conflict would be largely fought through the bloody business of "Trench Warfare" with neither side wanting to give even a meter of ground.

With the stalemate along the Western Front, new devices were hurriedly developed and, in some cases, perfected in an effort to break the will of the enemy. The machine gun rose to deadly fame as did the aircraft through various guises including bomber and fighter. The tank was in its infancy and emerged as lozenge-shaped steel beasts for the British and several forgettable early designs for the French. Prior to these, however, the armored car played a vital role in supporting infantry actions when it could and most national powers fielded some form of it during the war.

The British arranged their initial armored car squadron in September of 1914 and a total of six were eventually formed during the war. The Rolls-Royce "Silver Ghost" automobile chassis was selected to stock its inventory. The Silver Ghost series was first produced in 1906 and manufactured into 1926 with some 7,874 examples completed. Most of the civilian-minded accessories and comforts were appropriately stripped for military service and, to this existing understructure and four-wheeled arrangement, was added a boxy steel hull superstructure with traversing armored turret over the rear passenger section. The engine remained in a forward compartment with the driver in the center of the design. Aft of his placement was the turret and bulk of the vehicle's mass which made handling somewhat cumbersome. The wheels were spaced far apart at each corner of the frame, this carried over from the Silver Ghost car - though the rear set were double-tired to contend with the added weight of armor and armament. Armament was 1 x 7.7mm Vickers water-cooled machine gun, its jacketed barrel protruding some distance away from the turret's frontal armor. These changes then led to the "Rolls-Royce Armored Car" (RRAC) being born.

The RRAC weighed in at 5 Short Tons, and sported a running length of nearly 5 meters - certainly a long design by any measure and one that required a wide turning radius to boot. Width was 1.93 meters with a height of 2.54 meters. The standard operating crew was three personnel including the driver, a gunner and vehicle commander. All were modestly protected from small arms fire due to the armored superstructure. However, conditions within were spartan and generally unfriendly for periods of long service. Armor protection reached 12mm at critical spots about the superstructure. Power was served through 1 x 6-cylinder, water-cooled gasoline engine of 80 horsepower which provided the 4x2 wheeled chassis a top speed of 45 miles per hour and operational road range of 150 miles. Of course this was assuming an ideal road surface and optimal conditions. The chassis was supported through a leaf spring suspension system offering some cross-country travel. Entry and exit of the vehicle was through the turret roof or along the side of the vehicle via a hinged rectangular door. Spare road wheels could be affixed to the hull sides for replacement of flats.

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Prototypes of the RRAC were unveiled in December of 1914. After a short period of evaluation, they were pressed into service during the early-to-mid portion of 1915 along the front but were quickly outpaced by developments in the war which had now grown into a series of stalled initiatives. As such, the design's limitations shown through for their cross-country capabilities proved lacking - underpowered due to excess weight brought about by the steel armoring and limitations in available armament options. Thusly, its arrival proved too late and many were better served as second-line units in support of advancing troops when concerning the battlefields of Western Europe. The combat tank eventually took the reins of armored warfare during the conflict and armored cars such as the RRAC were eventually sent overseas to the Middle East and across Africa where terrain and engagement environments proved more suitable to the design. RRACs and others like her gave a better account of themselves in fighting apart from Europe proper for even Lawrence of Arabia held the design in high esteem, owing much of his success against the Ottoman Turks to whatever RRACs he could get at his disposal. A total of 120 RRAC vehicles were produced by Rolls-Royce factories during World War 1, manufacture lasting until 1917 to which Rolls-Royce was pressed to produce more aircraft engines for the British aviation effort.

During the interwar years, the RRAC existed in limited numbers with British, Irish and Polish forces. In 1920, the British Army authorized a modernization program to bring the vehicle up to new required standards, producing the RRAC "1920 Pattern Mk I" with its reinforced radiator armor and all-new wheel installations. A further revision of the design that year added a commander's cupola to the roof and this produced the RRAC "1920 Pattern Mk IA" designation. In 1921, the RRAC "1921 Indian Pattern" was formed complete with the 1920 Pattern changes and an elongated armored hull with spherical turret mounting four machine guns. Another foreign modification of the original RRAC was occurring in British Egypt where existing superstructures were mated with Fordson truck chassis to produce the "Fordson Armored Car" - highly suitable for colonial policing duties in the region. By 1940, at least 34 of these vehicles were refitted with the Boys Anti-Tank Rifle coupled with a .303 Bren machine gun which broadened the tactical usefulness of the vehicle. In 1924, another revision added the commander's cupola to the turret roof and this produced the RRAC "1924 Pattern Mk I" designation.

Beyond their use in World War 1, RRACs were also featured in the Irish Civil War (1922-1923) where their policing qualities could be best put to use against unarmored guerilla-type forces in an urban environment. Pro-Treaty forces were supported by the British and eventually claimed the victory over the Anti-Treaty forces. Some 13 RRACs were handed over to the Irish government for the bloody clashes that ensued.

Despite their origination in a World War 1 initiative, the Rolls-Royce Armored Car was still present in the British inventory by the time of World War 2. At least 76 examples were still on hand though many based, again, in the Middle East where colonial security was of paramount importance to the Empire. As such, their fighting contribution was primarily centered in North Africa. World War 2 officially began in 1939 with the German invasion of Poland and quickly spread to include most of the discovered world. By 1941 however, the RRAC had seen its best fighting days behind her. The British eventually invested design and development into more modern armored cars and these proved much better suited to the war at hand. As such, the original Rolls-Royce design eventually faded to history, serving up to or around 1944 before they were given up for good. Irish-owned versions managed to outlive their usefulness into the mid-1950s.

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Power & Performance
Those special qualities that separate one land system design from another. Performance specifications presented assume optimal operating conditions for the Rolls-Royce Armored Car Four-Wheeled Armored Fighting Vehicle (AFV).
1 x 6-cylinder gasoline-fueled, water-cooled engine developing 80 horsepower.
Installed Power
45 mph
72 kph
Road Speed
149 miles
240 km
Range
Structure
The physical qualities of the Rolls-Royce Armored Car Four-Wheeled Armored Fighting Vehicle (AFV).
3
(MANNED)
Crew
16.2 ft
4.93 meters
O/A Length
6.3 ft
1.93 meters
O/A Width
8.3 ft
2.54 meters
O/A Height
10,337 lb
4,689 kg | 5.2 tons
Weight
Armament & Ammunition
Available supported armament, ammunition, and special-mission equipment featured in the design of the Rolls-Royce Armored Car Four-Wheeled Armored Fighting Vehicle (AFV).
1 x 7.7mm Vickers / Maxim water-cooled machine guns OR 1 x 0.55 caliber Boys Anti-Tank Rifle with 1 x 0.303 Bren Light Machine Gun.
AMMUNITION:
Not Available.
Variants
Notable series variants as part of the Rolls-Royce Armored Car family line.
Rolls-Royce 1914 Pattern Mk I - Initial Production Model.
Rolls-Royce 1920 Pattern Mk I - Modernized Variant; improved radiator armoring; new wheels.
Rolls-Royce 1920 Pattern Mk IA - Commander's cupola added.
Rolls-Royce 1921 Indian Pattern Mk I - British India RRACs with elongated hull armor; spherical turret emplacement for 4 x machine guns.
Rolls-Royce 1924 Pattern Mk I - Commander's cupola added to turret.
Fordson Armored Car - Rolls-Royce armored cars with Fordson truck chassis; various wartime armaments.
Operators
Global customers who have evaluated and/or operated the Rolls-Royce Armored Car. Nations are displayed by flag, each linked to their respective national land systems listing.

Total Production: 120 Units
Contractor(s): Rolls-Royce - UK
National flag of Ireland National flag of Poland National flag of the United Kingdom

[ Ireland; Poland; United Kingdom ]
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