The Schneider Ca-1 in Spanish Service
Called Carro Pesado de Artilleríe M16 (modelo 1916) in Spanish service the Schneider Ca-1 like many of its contemporaries, was basically an armored box. Its main armament - a 75 mm Blockhaus Schneider gun, which was positioned in a sponson on the right of the vehicle, but this provided very limited traverse. Secondary armament consisted of two 8 mm Hotchkiss machine guns mounted in sponsons one on each side. The tank’s overhanging front in the shape of a pointed nose was designed to destroy German barbed wire, allowing infantry to break through. The nose meant the 6.32 meter long vehcle was nose heavy and would often become ditched.
Crew comfort was not a consideration in the design - six crew members (commander/driver, main gunner, two machine gunners, loader, and mechanic) were all crammed into an interior which was 1.5 meters high and less than 2 meters wide and shared with the engine; making it hot and noisy when operating. The tank was extremely slow, with a maximum speed of 8.1 km/h and a ‘practical’ speed of between 2 and 4 km/h. The riveted and bolted armour had a maximum thickness of 11 mm, though this was later improved by an additional 5.5 mm. With the added armour, the total weight of the tank was 13.5 tonnes.
Another deal at the same time was agreed to form a Batería de carros de asalto (assault tank battery),
which was to include: 6 Schneider CA-1s, 6 Latil TAR tractors, 6 tank
transporter platforms, 6,000 rounds of 75 mm ammunition, and replacement parts.
The purchase was authorized by Royal Decree on September 16th 1921, with a
total cost of 1,367,303 Francs.
The Schneider CA-1s sent to Spain had the thicker 16 mm armour and were re-armed with Spanish 7 mm Hotchkiss machine guns. Externally, the tanks were painted in the original French colours – a grey background with green and ochre ‘stains’, sometimes outlined in black, while the interiors were painted white. Initially, the vehicles were inscribed with “ARTILLERIA” and the vehicles number in white on the left side to identify individual tanks. In Spain, they were designated as Carro Pesado de Artillería M16 (Modelo 1916). At some point in early 1922, a battery’s organization was created: 1 command tank, 4 tanks, 5 Latil TAR tractors and tank transporter platforms, a tractor to carry ammunition, and a workshop truck. In the event of war, the battery size would be increased by one tank, one Latil TAR tractor and tank transporter platform, a Pavesi tractor, four ammunition trucks, and a water tank truck.
Command of the battery
was assigned to Captain Carlos Ruiz de Toledo, who, in the future, would play a
crucial role in the development of Spain’s first indigenous tank – the Trubia
Serie A. Each Ca-1 had a crew of seven: commander (with the rank of
lieutenant), a second commander (with the rank of sergeant), a corporal, a
driver/mechanic, a main gunner, and two machine gunners.
On March 8th, the Ca-1 battery departed Melilla towards Batel to join General Miguel Cabanella Ferrer’s column. On route was the first instance of what was to become a recurring problem during the Ca-1‘s time in North Africa. The bridges in the region were unable to sustain the combined weight of a tractor, the tank carrying platform, and the tank at the same time, meaning the Ca-1 had to be dismounted and cross the rivers (in most cases dry), by their own propulsion.
The Ca-1 made their combat debut on March 14th 1922, becoming the
first ever Spanish tanks to see action. With accompanying infantry, atop of
their tank transporter platforms, the Ca-1s left Batel heading towards
Kandoussi at 5:30 in the morning. After a stop in Aasel, they arrived on the
bank of the River Kert opposite Kandoussi at 8:20. At this point, the assault
tanks dismounted and attempted to cross the river bed to attack some
Rifian trenches.
The battery was soon back in the Driouch area, taking part in action
alongside two banderas of the Foreign Legion, a battalion of the Regimiento de Infantería “Otumba” Nº 49 and
a squadron of the Regimiento de
Húsares de Pavía on May 17th 1922.
Based on combat experience, a series of field modifications were carried
out on some or perhaps all of the Ca-1s. More often than not, because they were
used as mobile forts, the tanks found themselves in close combat. Crews needed
an increase in firepower, and to that end, a third 7 mm Hotchkiss machine gun
was positioned on the rear access doors. Similarly, an opening cut into the
front of the driver’s position added a fourth machine gun to be operated by the
driver when the tank was stationary.
In some photos, two
bracket-shaped structures, one at the rear and the other on top of the driver’s
position can be noted, these are thought to be antennas for radio equipment.
This theory is supported by photographic evidence of crew members with what
appears to be a primitive headset.
This photo appears to show the radio antenna
After their return to
Spain, four Ca-1s were part of the depot of the Regimiento Ligero de
Carros de Combate No 1 at Madrid - a mixed armoured unit with Renault
FTs and armoured cars. The remaining two Ca-1s were part of the depot strength
of RLCC No 2 at Zaragoza, Spains other armoured unit, sometime after returning to Spain the Ca-1s were repainted olive green.
At the outbreak of the Spanish Civil War, the first unit
remained under Republican command, while the second took the side of the
Nationalist rebels. The Madrid vehicles saw some action during the bloody
attacks on the Cuartel de la Montaña, the main military barracks of the capital which had an arsenal
with a large quantity of weapons which the loyalist workers wanted to
use. At least one Ca-1 and two Bilbao armoured cars took part in the
fighting. Some of the tanks were manned by militia
members of the Unión General de
Trabajadores (UGT) and the Unión de Hermanos Proletarios (UHP).
On 21 July, a large column under the command of General José Riquelme y López-Bago used two Schneider CA-1s and a number of improvised armored vehicles to head south towards Toledo. Rebel troops took refuge in the historic Alcázar, holding out until the end of September, when the siege was relieved by Franco’s Army de Africa.
During my research across the web, I stubbled across this brief account of the fighting in Toledo (I`ve edited the original to make more sense in English -
During the action against the Hospital de Tavera (The Hospital de Tavera was not part of the Alcazar although it could be seen from the North Terrace). A Ca-1 passing between two buildings down the Calle de Carmen to attack the Stable access and main approach to the Alcazar was attacked with a Laffite Grenade by Lt Espiga who leaned out of a upper window to drop the grenade onto the tank. The grenade bounced off before exploding, causing not damage, but the tank withdrew.
During the fighting in Toledo, one Schneider CA-1 was knocked out or abandoned on Calle Santa Cruz, this vehicle is clearly marked with JSU (Juventudes Socialistas Unificadas) so we have to assume it was manned by members of this union?
The Ca-1s in Zaragoza also participated in the initial fighting, though I have found no real information.
It is possible the
remaining Ca-1s in Madrid were used in later fighting, but again no definite information
could be found, I think we can probably assume all the Ca-1s were out of action
by the end of 1936.
Wargaming with the Ca-1
During the Rif War use
the tank as you would any other, an assault weapon supporting infantry and
cavalry in their attacks. In defence, use it like a mobile fort covering
withdrawals or blocking a road or track denying its use to the enemy or as a
convoy escort (be it a very slow one).
During the SCW the Ca-1
could be used as part of a mobile column or in support of one side or the other
in attack or defence
