Semovente da 75/18
| Company type | Military vehicle |
|---|---|
| Industry | Defence |
| Founded | 1941 |
| Headquarters | Italy |
| Products | Self-propelled artillery |
Overview
The Semovente da 75/18 was an Italian self-propelled artillery piece deployed during the Second World War. This vehicle combined the 75 mm Obice da 75/18 modello 34 mountain howitzer with the chassis of various Italian tanks, including the M13/40, M14/41, and M15/42 models.[1]
Production began with 60 units constructed on the M13/40 chassis, followed by 162 units mounted on the M14/41 chassis between 1941 and 1943.[2] Prior to Italy’s armistice, 190 vehicles were produced using the M42 chassis, with an additional 55 assembled afterward.[2] The Semovente da 75/18 served as a temporary solution pending the availability of the heavier P40 tank.[3]
History
Italian artillery officer Colonel Sergio Berlese, who also engineered the Obice da 75/18 modello 34 howitzer, proposed that Italy develop an armoured fighting vehicle akin to the German StuG III assault gun, which had proven effective during the 1940 French campaign. The initial prototype was rapidly constructed and delivered by February 10, 1941, just 13 months after the debut of the M13/40 tank that served as its foundation. Subsequently, an order for 60 additional units was placed. These were produced throughout 1941 and dispatched to North Africa in January 1942. This first series utilized the M13 chassis, equipped with a relatively underpowered 125 hp engine, which was later upgraded to a 145 hp unit paired with the M14 chassis.
Design
This self-propelled artillery piece featured riveted steel armor plates that were thicker but less inclined than those on the original tank design—measuring up to 50 mm compared to a maximum of 42 mm on the M13/40. The frontal armor was nearly vertical and composed of two layered plates, providing enhanced protection over a single homogeneous plate.
The crew compartment and driving position were located at the front within a spacious, low-profile casemate. Positioned behind this section was the engine housed in a separate, sloped compartment typical of Italian vehicle layouts, which included inspection panels on its roof. The chassis mirrored that of the M13/40 tank, featuring eight small road wheels arranged in four bogies paired by two arms each. The suspension system employed leaf springs, known for reliability but limiting maximum speed. The transmission was installed at the front of the vehicle. Crew size was limited to three: a driver, a loader who also operated the radio, and a commander who doubled as gunner.
The primary weapon was derived from an 18-caliber-long 75 mm L/18 gun. It had a traverse capability of 40° and elevation ranging from −12° to +22°. Equipped with a muzzle brake, the gun’s sighting apparatus included binoculars and periscopes among other devices for aiming accuracy. Due to its relatively low muzzle velocity of approximately 450 m/s, maximum indirect fire range reached about 9,500 meters at an elevation of 45°, although the gun’s limited elevation angle restricted practical range to roughly 7–8 kilometers. This limitation also constrained direct fire effectiveness against moving targets. For close-range defense, a single roof-mounted machine gun was installed—initially a 6.5 mm Breda 30 model later upgraded to an 8 mm Breda 38—although some vehicles operated without it. Ammunition capacity typically included forty-four rounds for the main gun and over one thousand cartridges for the machine gun. In North Africa, some crews increased their shell load to around one hundred by removing seats to accommodate extra rounds. Communication was generally maintained via an RF1 CA interphone radio system.
Service
While these vehicles were not extensively recognized, they performed effectively in their assigned duties. Although sharing technical similarities with the StuG III, their function was distinctly different, operating as divisional artillery rather than as pure assault guns. The organizational setup included two artillery groups per armoured division, each group comprised of two batteries (each with four 75/18 guns plus a command vehicle). Altogether, this amounted to 18 75 mm L/18 guns (including two held in reserve) and nine command vehicles, which featured enhanced radio systems and a Breda 13.2 mm heavy machine gun mounted in place of the main armament. The initial order of 60 units sufficed for equipping the three armoured divisions.
The Semovente da 75/18 models saw action during the North African campaign and the Allied invasion of Sicily, operating alongside M tank units to augment firepower. Although not originally intended for anti-tank combat, their 75 mm howitzer proved highly effective due to its low muzzle velocity, which was ideal for firing HEAT rounds. The 5.2 kg HEAT projectile ("Effetto Pronto" in Italian) could penetrate up to 80 mm of armor at a distance of 500 meters, enabling it to defeat tanks such as the US-built M3 Grant and M4 Sherman employed by the British Army. Consequently, these vehicles contributed significantly to the successes of Italian armoured forces between 1942 and 1943, a period when medium tanks armed with the 47 mm M35 gun had become largely ineffective. Additionally, the Semovente da 75/18 mounted on the M14 chassis provided the 132nd Armoured Division Ariete and the 133rd Armoured Division Littorio with an expanded tactical capability until British forces introduced U.S. medium tanks that nullified this advantage.
The most notable engagement involving the Semovente da 75/18 occurred on 10 June 1942 near the Knightsbridge Box during the Battle of Gazala. In this battle, thirty M3 Grant tanks and ten M3 Stuart light tanks from the 1st and 6th Royal Tank Regiment launched an assault against a position defended by the Ariete division. The attack was successfully repelled by Semovente da 75/18s supported by some M13/40 tanks and gun trucks, resulting in losses of three Grants and two Stuarts from the 6th Royal Tank Regiment and twelve Grants along with three Stuarts from the 1st Royal Tank Regiment. Italian losses were limited to two M13/40 tanks.
Despite certain drawbacks—such as a cramped interior and underpowered engines in the M40 and M41 versions—the Semovente da 75/18 excelled both in direct infantry support roles and in anti-tank engagements. Its principal strengths included superior firepower, thicker armor compared to medium tanks, and a lower profile that made it harder to target. These attributes earned it a reputation as the sole Italian armored vehicle genuinely feared by Allied tank crews. Although originally designed for a different purpose, the 75/18 frequently replaced standard M13/40 tanks on the battlefield. Nevertheless, it was never deployed in large numbers; with fewer than 30 units present during the Second Battle of El Alamein, their limited availability was insufficient to alter Italy's strategic position.
In 1942, production increased with 162 additional vehicles built on the M41 hull, identifiable by full-length fenders; by 1943 manufacturing shifted to the M42 variant featuring the chassis and engine from the M15/42 tank. Efforts were also made to compensate for deficiencies in the M14/41 tank by supplementing each unit with some Semoventi, although very few Italian divisions actually received these reinforcements.
The demand for more powerful and longer-range weaponry prompted development of self-propelled guns such as the 75/34, 75/46, and 105/25.
German use
Following Italy's capitulation in 1943, the Germans confiscated approximately 131 Semovente da 75/18 units and authorized the manufacture of an additional 55.[4] These vehicles, alongside other Semovente variants, were distributed among twelve divisions—comprising nine infantry, one mountain, one Jäger, and one Grenadier division—as well as three assault gun brigades and the 12th SS Polizei Panzer Company.[5] All these formations were designated for deployment within Italy or the Balkan region. The Germans referred to these vehicles as StuG M42 mit 7,5 KwK L 18(850)(i).[1]
Surviving vehicles
Several examples of the 75/18 remain extant today, categorized by variant:
- An M 40 (registration number 4445) is currently preserved at the Aberdeen Proving Ground.[6]
- A damaged M 40 is on display at the El Alamein Military Museum.
- Either an M 40 or M 41 is exhibited at the Musée des Blindés, located in Saumur.
- An M 41 (plate number 4462), recovered postwar and utilized with minor modifications by the Italian Army after WWII, is stored at the Historical Museum of Military Motorization in Cecchignola (Rome).[7]
- Another M 41 (plate number 5727), also employed by the post-war Italian military, underwent restoration by Oto Melara in 2005 and is now displayed in their museum at La Spezia.[8]
- An M 41 is preserved at the Scuola truppe corazzate in Caserta.[6]
- An M 42 is held by the Reggimento Artiglieria a Cavallo in Milan.[6]
- A dummy-gunned M 42 (plate number 6173) can be found at Rocca di Bergamo.[6]
- Another M 42 without its gun is located at Parco delle Rimembranze in Lonate Pozzolo.
- A StuG M 42 bearing number 114 was constructed under German supervision in early 1944. It was abandoned in a crater following combat near Rimini on 21 September during the Battle of Rimini (1944). Excavated in 2000, it was restored by the Museo dell'Aviazione in Rimini, where it has been on display since 2004.[9]
- There is also mention of an unspecified example of the 75/18 located at Nocera Inferiore (Naples).[6]
In popular culture
- The Semovente da 75/18 appears as a combat vehicle within the Italian Combined Arms Battlegroup of the Afrikakorps faction in the game Company of Heroes 3. It fulfills roles involving direct anti-tank fire as well as short-range artillery support, accurately reflecting its historical operational use.[10]Template:Fix/category[citation needed]
References
- Notes
- ↑ 1.0 1.1 Lorenzetti 1978, pp. 58–59.
- ↑ 2.0 2.1 Cappellano & Battistelli 2012, p. 67.
- ↑ Cite error: Invalid
<ref>tag; no text was provided for refs named:0 - ↑ Cappellano & Battistelli 2012.
- ↑ Ormeño, Javier (21 June 2012). "Semovente in the Wehrmacht". Guerra abierta. Retrieved 20 December 2016.
- ↑ 6.0 6.1 6.2 6.3 6.4 Pignato, Nicola (1974), in Bellona Military Vehicle Prints, series 37. Model & Allied Publications LTD., p. 15
- ↑ Guglielmi 2013, p. 3.
- ↑ Guglielmi 2013, p. 13.
- ↑ Guglielmi 2013, p. 25.
- ↑ "Company of Heroes 3 factions and battlegroups guide". PC Gamer. 23 February 2023.
- Bibliography
- Beretta, Davide (1997). Batterie semoventi, alzo zero: quelli di El Alamein. Milano: Ugo Mursia Editore. ISBN 8842521795.
- Cappellano, F.; Battistelli, P. P. (2012). Italian Medium Tanks: 1939–45. New Vanguard 195. Oxford: Osprey Publishing. ISBN 9781849087759.
- Guglielmi, Daniele (2013). Semoventi M 41 & M 42. Model Centrum PROGRES. ISBN 978-83-60672-03-7.
- Lorenzetti, Furio (1978). Corazzati [Armour]. Milano: Fabbri Editori. OCLC 799494760.
- Pignato, Nicola. Storia dei mezzi corazzati. Vol. II. Fratelli Fabbri Editori. pp. 208–214.
- Pignato, Nicola (2004). Italian Armored Vehicles of World War Two. Squadron/Signal publications. ISBN 0-89747-475-9.
Further reading
- Ness, Leland (2002). Jane's World War II Tanks and Fighting Vehicles: The Complete Guide. London and New York: Harper Collins. ISBN 0-00-711228-9.
External links
- Semovente da 75/18 Su Scafo M 41 at wwiivehicles.com
- Semovente da 75/18 at tanks-encyclopedia.com
- Italian Armoured Vehicles in German Service, Italy 1944–45