Category: WW1 German Prototypes

German Empire (1908-1909)
Armored Car – 1 Prototype Built

As is the case with many early armored vehicles, the armored Daimler from 1909 is not widely known and has received only scant attention in publications. Just one vehicle was built, possibly as early as 1908, and it was used during maneuvers in 1909 alongside other vehicles with the aim of understanding the value of armored cars for the army. As the results were deemed to be negative, the German War Ministry abandoned the armored car as a viable concept and the Daimler 1909 disappeared from records.

Background

Unfortunately, most records of German armored cars made before 1918 were lost during the Second World War. Therefore, research is mostly limited to contemporary news reports, few secondary sources, and observation of the only known photograph. However, it is not uncommon that these contradict each other. Despite this, some information is still preserved and warrants an analysis.

It is possible that production of the armored vehicle had already begun in 1908. In the military magazine ‘Mitteilungen über Gegenstände des Artillerie- und Geniewesens’ from early 1908, it is mentioned that:

“An armored car was accepted by the Saxon Army Administration in Remscheid. It is equipped with a machine gun and the armor gives such protection that, even in close quarters combat, it provides complete protection for the crew.”

It is striking that the supposed 1909 model was also armored in the city of Remscheid. Furthermore, in the French ‘Journal des sciences militaires’ of November 1908, it is noted that if tests were successful, they would be taken into service as reconnaissance vehicles with Saxon regiments. Another mention comes from the Streffleurs militärische Zeitschrift from June 1909 which states that:

“in addition to the armored car of the Rheinischen Metallwaren- und Maschinenfabrik [Ehrhardt BAK, red.], which has been tested since 1907, another such vehicle was built in 1908 by the Versuchsabteilung of the Verkehrstruppen in Berlin and armored in Remscheid.”

An argument can be made against this position as well. A short notice in the Allgemeine Sport-Zeitung of 17th January 1909 mentions that an armored car was under construction for the Testing Unit of the German Mobile Troops (Verkehrstruppen) to be used during the autumn maneuvers. However, that does not necessarily disprove the theory, as it is possible that production started in 1908 and was still underway by early 1909. This is further strengthened by a mention from April 1909 that, in that month, an armored car was taken over by the Saxon Army Command.

Name of the Daimler 1909 Model

It appears that the vehicle never received an official name. It is generally referred to as an armored Daimler or Mercedes chassis. Since 1902, all sport and tour cars of the Daimler company were advertised as Mercedes, so naming it either Daimler or Mercedes is both correct. Walter J. Spielberger called it a 45-PS-Mercedes-Wagen, while Heinrich Kaufhold-Roll named it Mercedes-Panzer-Maschinengewehr-Wagen. Rainer Strasheim gave no name and referred to it as a “makeshift armored car, based on a 40 hp Daimler chassis”.

 

 

Design

The vehicle was assembled in the city of Remscheid. A contemporary source mentions the Stahlwagenfabrik (Steel car plant), referring to the Bergische Stahl-Industrie. This factory did produce steel chassis for railway cars and thus had the right tools to be able to produce an armored vehicle.

The vehicle was based upon a commercial Daimler chassis, also known as Mercedes, but the specific model is unknown. It is also unclear how much horsepower the Daimler petrol engine provided, as figures are given of either 35, 40, or 45 horsepower. The spoked wheels, protected by steel discs, were shod with pneumatic tires and suspended by leaf springs.

In terms of external appearance, the vehicle showed similarities with the French CGV 1905 and seems to have been partially modeled after it. The front radiator was unarmored which allowed sufficient cooling of the engine, but also made it very vulnerable to enemy fire. The crew compartment was located behind the engine. The driver could see through a large hatch in the front, which could be folded up or down. Another large opening was located on the right side of the car. The presence of a similar opening on the left side is possible but not visible on the photograph. Behind the driver was a large open-topped crew compartment. Again similar to the CGV, large closable hatches were located on each side. It is unknown what the rear looked like. The car was open-topped but, in the single known photograph, a tarpaulin is fitted to protect against rain. According to the French Journal des sciences militaires, there was space in the vehicle for ten people, including a driver.

Spielberger claims that the vehicle was armored with 3.5 mm thick plates. This would have been totally inadequate to provide reliable protection against infantry weapons fire, especially from close range. This was made worse by the large hatches that were easy to fire through once opened and the pneumatic tires that could easily be damaged by enemy fire.

The car carried one 7,92 mm machine gun, but it is unknown how this weapon was deployed, either on a pivot extending above the vehicle or through the hatches in the sides. It is also unknown what kind of machine gun was carried. At the time, the German Army used a quantity of the Maxim-derived MG 99 and MG 01, while an improved model, the MG 08, was just taken into production. Either of those was used.

The Maneuvers

Plans had been made to comparatively test four vehicles during the 1909 autumn maneuvers performed by the 5. Garde-Infanterie-Brigade (5th Guards Infantry Brigade) in eastern Brandenburg. Among these vehicles were two Charron Girardot Voigt 1905 models acquired from France and originally destined for Russia. They were in use by the Kraftfahrabteilung (Motor Vehicle Department) and, over time, several improvements had been made. The third vehicle was an unarmored Büssing omnibus chassis with a simple flatbed and equipped with two machine guns. The last was the Daimler/Mercedes armored car. Even before the maneuvers, it was thought that the Büssing would perform the best, since it was the lightest.

Negative Results

The maneuvers yielded mixed conclusions with the observers. The mobility and fast maneuver speed of the vehicles on roads in good condition was appreciated, but at the same time, the very limited off-road capabilities were criticized. The Versuchsabteilung (Testing Department) recommended further testing. Using the test results, the department submitted a list of specifications, to which a successful armored car had to conform, to the War Ministry. It concluded that the armor had to be bulletproof against infantry weapons, the crew should be able to fire in any direction, cars should be equipped with solid rubber tires instead of pneumatic tires, and have a suspension that allowed for off-road driving.

However, on 12th March 1910, after a request of the General Inspection of the Military Transport Department, the War Ministry decided that all further tests with armored vehicles were to be suspended. They concluded that “Armored cars can have a military value in certain cases, such as border protection, being used as blockades in mountainous areas, or blowing up bridges over rivers, but otherwise, their usefulness in war is very limited.” This verdict was further enhanced by the high operation costs in peacetime and their inability to drive off-road, although the mobility on-road was appreciated. As a result, the development of new armored cars was suspended by the Infantry Department (A2) of the War Ministry.

Furthermore, near the end of 1911, the General Inspection of the Military Transport Department reached the conclusion that armored cars were technically too fragile and vulnerable, the engines were unreliable, and adequate armor would render the cars too immobile in battle and reduce the mobility when under enemy fire, making the vehicles easy targets for artillery and field guns. At the same time, a lightly armored car would be too vulnerable to regular infantry fire. An annual report from 1911 summarized: “The age of armor is over, as the weight affects speed, without providing real protection against fire.” Thereupon, the available armored cars were supposed to be sold off.

Fate of the Daimler

Presumably, all four vehicles were scrapped after being sold or at least stripped from their armor, although there may be a small possibility that the CGVs were used in 1914. According to Kaufhold-Roll, the Daimler vehicle would become the precursor to the Daimler-Motoren-Gesellschaft Maschinengewehrträger from 1913. This was an unarmored machine gun carrier designed in 1913 and two examples were constructed in 1914.

Conclusion

Although an elaborate assessment of the vehicle cannot be made with the limited information that is available, the Daimler was clearly not a great vehicle. Having decent mobility, the car lacked off-road capabilities and was poorly protected. The maneuvers of 1909 provided valuable information regarding what an armored car had to be capable of. However, instead of further investigating the concept and resolving the observed problems, it was decided that the armored car had been an interesting curiosity but its age was over. Little did the writers of these reports know that the armored age was just beginning.

Specifications
Crew	10? (driver, attendant, troops)
Propulsion	Daimler, petrol, 35-45 hp
Armor	3.5 mm
Armament	non-fixed machine gun, personal firearms
Total production	1

Sources

Streffleurs Militärische Zeitschrift, Automobilwesen, 7th December 1909, p.1629-1630.
Streffleurs Militärische Zeitschrift, Kriegstechnik, 1st June 1909, p.515.
Mitteilungen über Gegenstände des Artillerie- und Geniewesens, Deutschland, 1st Issue, volume 59, 1908, p.40.
Wehr und Waffen 1914-1918, Ernst von Wrisberg, Koehler, 1922, p.159.
Allgemeine Automobil Zeitung, Panzerautomobile bei den deutschen Manövern, 22nd August 1909, p.9.
Allgemeine Sport-Zeitung, Notizen. Ein Panzerautomobil, 17th January 1909, p.69.
Journal des sciences militaires, 3 La voiture des ateliers Remscheid, 1st November 1908, p.170.
Het Bloemendaalsch Weekblad, De automobiel in verschillende legers, 17th April 1909, p.5. NHA.
Die deutschen Radpanzer im Ersten Weltkrieg, Heinrich Kaufhold-Roll, Biblio Verlag, 1996.
Panzer-Kraftwagen: Armoured Cars of the German Army and Freikorps, Tankograd 1007, Rainer Strasheim, Verlag Jochen Vollert, 2013.
Die gepanzerte Radfahrzeuge des deutschen Heeres 1905-1945, Walter J. Spielberger, Hilary L. Doyle, Motorbuch Verlag, 2002.

Various sources have been accessed via https://digitalniknihovna.cz, https://anno.onb.ac.at/, and https://gallica.bnf.fr.

German Empire (1913-1917)
Walking Vehicle – Scale Prototypes

After the debut of the tank on the battlefield in 1916, many inventors purported that they had already designed similar vehicles earlier and should be credited for its novelty. Australia had De Mole, and Austria had Günther Burstyn. In Germany, another man made the headlines as the inventor of the first tank, namely Friedrich Wilhelm Goebel with his Landpanzerkreuzer. His claim has some merit, although, instead of a caterpillar system, he had envisioned a system with walking beams. However, some of his contemporaries may have described him as a fraud, rather than an inventor ahead of time. At least two times, he managed to lure in investors with the promise of great profit, but instead depleted the funds with little results.

Goebel, forgotten innovator

Friedrich Wilhelm Goebel (or Göbel) may have been born in Königsberg (Kaliningrad after 1945). At some point, he lived in Saint Petersburg on 52 Kazanskaya Street, but moved, probably before 1909, to Breslau in Germany, where he lived on 5 Stern Street (current day Poland, Wroclaw, Sienkiewicza Street). He was a machine builder and engineer by trade. In September 1909, he made the news for the first time, in relation to a perpetual motion machine he had built. It was excessively large, some three meters long and two meters high, and was quite useless. In some ways, this machine was a harbinger of what had yet to come.

In early 1913, Goebel finalized the design of a new revolutionary vehicle, one that could move without wheels. Instead, it utilized a walking-beam system. On 14 March, 1913, he applied his design to the German patent office. This patent, which described a “drive device for wheel-less vehicles, using skid-shaped supports”, is also the first documentary evidence of the design. He applied for it together with the Carowerke Für Blechindustrie G.m.b.H. from Berlin-Lichtenberg. Goebels’ relation to this company is unclear.

The first model Goebel made of his design was very small and used a foot pedal system, instead of any motorized propulsion.

The vehicle would be capable of crossing trenches, overcoming steep slopes, and crossing rough terrain. A year later, on 13 March 1914, he applied for the same patent at the British and French patent offices. Around that time, he finished work on a working, but scaled down, prototype in his workshop in Pinne (today Pniewy, Poland). He equipped it with a small 5 hp-engine. In February 1914, he also had applied his design to the German Army Technical Communications Testing Committee. Reportedly, the military showed interest, especially in the supposed capability to carry weight over rough terrain.

The vehicle was referred to as a ‘hebelschienen-automobil’, which roughly translates to a ‘lifting rails-car’. It had three sets of rails, attached to a rigid square chassis. Built on this chassis was a cabin, similar to a small train wagon. Sometime around April or maybe early May, he showed the vehicle to an audience in Pinne, the same city where his workshop was located. For the event, a large ramp was built, roughly eleven meters high and inclined at roughly 50 degrees. Walking on its sets of runners, it successfully reached the top, where the German flag was hoisted in full glory.

Boosted by his success, he arranged a show in Berlin. During the Pentecost holiday, the Berliner Stadium was packed with people, including military officers, generals, technicians, and similar authorities. He was off to a good start and the vehicle walked to the elevation, which was, for the occasion, thirty meters high, nineteen meters higher than the recorded previous attempt. Unfortunately for Goebel, he would never reach the top. In front of hundreds of people, his vehicle broke down at the foot of the hill, subjecting him to embarrassment and scorn. The little interest in the vehicle evaporated into thin air.

At the time, roughly 300,000 Mark had been invested into the project by external parties and, after the Berlin incident, Goebel could not attract any more investors. Although he managed to repair the vehicle by building in a new engine, any military attention was lost. Without any commercial interest, the project was terminated and Goebel had to pay back his debt, which meant he had no personal funds available to continue the project himself.

Technical workings of the system

The idea of the walking beam system initially seems more complicated than it actually is. Basically, the vehicle was equipped with three sets of runners. While one set of runners is raised and moves forwards, the weight of the vehicle rests on the other sets. As the forward moving set gains a footing, it pulls the vehicle forwards, while the other sets repeat the motion. Essentially, it mimics the movement of a human and it can convey heavy loads with comparatively little power.

Design issues

An issue that comes to mind is the way of steering and frankly, Goebel did not mention this aspect in his patents. One could suggest one of the sides could be moved in reverse while the other kept moving forward, but the drawings indicate this was impossible. Other issues that are apparent are the complete lack of suspension and the low ground clearance. It is easy to imagine how the runners would pierce into mud and immediately get stuck.

World War One

Very shortly after these events, the situation in Germany would drastically change as the nation plunged itself into the Great War. Supposedly, in September 1914, Goebel first got the idea to armor his invention, essentially creating an off-road armored vehicle. In November, he offered it to the German War Ministry and managed to get 50.000 marks from them to build an experimental example. He completed this vehicle in January 1916, but it immediately broke down which caused the German authorities to lose all faith in the project and abandoned it. One photograph shows how litteral Goebel took his idea of a land battle cruiser with steering being done with a classic ship’s wheel.

In September 1916, shocking news reports appeared in the German and Austrian press. As the Entente forces had introduced a new technical weapon onto the western battlefield, the Tank. It was, of course, impossible that Britain and France were technologically more advanced than Germany and Austria, so the main quest of the German-speaking central European press was to find similar inventions within their nations. And they succeeded. Austria found Burstyn, who had patented a design in 1911. Germany found Goebel. Within a few days, the failed lifting-rails car became a true technological advancement and a missed opportunity that could have won the war, according to the propaganda. In December 1916, a public speech was held by writer Wilhelm Hall about the greatness of Goebel’s invention and journalist Hans Möller wrote some publications about the vehicle.

This renewed interest was of great importance to Goebel. With people advocating for his design, it was again possible to attract new investors and revive the project. This was especially true after Hall proposed to start a national fundraiser to free Goebel from the hands of his usurers and allow him to build his invention for the Fatherland. The plea for help worked and Goebel managed to find new investors, so he was finally able to build a model of a proposed armored vehicle. In February 1917, Goebel presented his work to a select group of technicians and journalists, during which he answered critical questions satisfactorily. Goebel said his model would be ready during the second half of February 1917.

The Armored Land Cruiser

Thanks to two pictures of the model, we have a vague idea how the final vehicle would have looked like. At first, the vehicle seems to resemble a submarine, but on land. The symmetrical body, railing on a flat top, and a tower in the middle are distinctive features. According to Duncan Crow and Robert J. Icks in their “Encyclopedia of Tanks” from 1975, Goebel estimated that the real size vehicle would have a length of 36 meters (118′) and a height and width of 5 meters (17′). With all-around armor of 10 centimeters (10″), the vehicle would weigh around 550 tonnes. It is a bit unclear where this information comes from, but that the proposed vehicle would be big and heavy is certain.

Any further details of the design are unknown, but some educated guesses can be made. For example, the commanding and driving positions were likely in the central tower. The armament would have consisted of a large number of guns which were likely located all-round the vehicle in the extrusions visible on the scale model.

Apart from the clear technical problems, it was likely the sheer size, proportions, and weight of the vehicle that got it rejected by the German Army.

An anecdote claims that the German Crown Prince, also called Wilhelm, heard of the rejection after the presentation. Seeing some potential, he arranged a second demonstration in June 1917. Goebel decided to replace the walking runners with steel spheres which acted as some kind of ball bearings. This solution was also labeled to be impractical and the vehicle was rejected again. It is unfortunately unknown what this system would have looked like.

In 1930, Goebel was fully convinced his armored land cruiser could have changed the war. With 20 or 50 of them, he said, the war would have been decided very quickly. They would have been invulnerable and invincible since the enemy had no anti-tank equipment and would panic from the sight of the vehicles.

Aftermath

In a way, Goebel fell victim to patriotic propaganda. His project was already a dead-end, and the revival of the project plunged Goebel into more debt. In June 1918, he was declared bankrupt by the Berlin court. At the time, he had a debt of 800.000 Mark, roughly a million dollars in 2015 value. Personally, he blamed the German military authorities. After all, he had pursued the project with the aim to help the war effort, while the ministry kept him at bay, not stopping him from investing more money into the project. The case of his bankruptcy also made it to the Reichstag, where a member pleaded to at least compensate Goebel for his efforts.

However, clearly, patriotism was not the only force driving Goebel, as the financial prospects were attractive as well. After all, his promise that much money could be made was what lured in the investors in the first place. Since it was not clear what Goebel had spent all the money on, a criminal investigation was launched against him. Shortly after these events, Goebel moved to Switzerland.

Better luck in Switzerland?

While living in Switzerland, Goebel tried to revive his career. He rented a workshop in Dietikon, near Zürich, where he started work on a new vehicle. Promising to build a new and wondrous “Wüstenschiff” or desert ship, he managed to find new investors who were willing to pay with the promise the invention would be worth millions of dollars.

In 1924, the curtain fell for Goebel. The construction of his wondrous desert ship dragged on and on. This delay raised some eyebrows and eventually, it was found out that Goebel was under criminal investigation in Germany and that he had been described as chronically paranoid by psychiatrists. In response, he was taken into custody by the local authorities and a search of his house revealed the addresses of all his financiers who could then be informed. They had been scammed by the promise of millions of dollars of profit once the invention was up and running. All the money was gone, and all that was left was the frame of the truck. What happened to Goebel afterward is unknown but he eventually returned to Berlin, where he died in poverty on 31 October 1931.

Further developments by Viag

The idea of a walking vehicle was further pursued by the company Viag (Venzlaff-Industrie A.G.), led by Richard Venzlaff, Walther von Mumm, and Arthur von Mumm. They designed a first prototype in 1922, which was completed and patented in 1923, while a second prototype was finished in 1925. In April 1923, the truck appeared as a ‘new invention’ in the Popular Science magazine. It was described as an invention of a German engineer and based on the ‘tank concept’. It is unknown to what extent Goebel was involved with the design process, or if he was involved with it at all.

 

 

Concluding…

Although of novel construction, the Landkreuzer failed to gain enough attention and the accident during Pentecost meant the project was exterminated. Goebel fixed the problem and supposedly got the idea in September 1914 to armor it, but nothing came to it. In September 1916, it quickly became a German propaganda tool after the British and French tanks were unleashed on the battlefields of the Western Front. Years later, Goebel himself claimed that his invention could have won the war. However, his design had fundamental problems, and given that the earliest reference of armoring the vehicle only goes back to September 1914, there is no real evidence that an armored vehicle could have been built before the war.

In fact, it appears that Goebel suffered from delusions and that he was more capable to make debt, rather than an actual armored land cruiser. Despite this, when he died, newspapers reported it as the death of the inventor of the first tank.

Myth

The internet is a great place for myths to circulate on. Although many wrong things have been written about Goebel, which were hopefully all rectified in this article, one myth needs to be discussed separately. For years, pictures of a rather advanced tracked tractor circulated on the internet with the claim it was designed by Goebel during the First World War, but that is totally untrue. In fact, it is a non-suspended tractor made by the Leipzig-based firm Wotan-Werke in 1926 and is known as the Type A. It was built to test the differences between a suspended, and non-suspended tracked chassis.

Sources

Friedrich Wilhelm Goebel, 1913, Antriebsvorrichtung für Räderlose, mit Hilfe kufenförmiger Stützen sich fortbewegende Fahrzeug, DE Patent 300981, issued 14 March 1913
Friedrich Wilhelm Goebel, 1914, Improvements in and relating to vehicles, UK Patent 6432, applied 13 March 1914, issued 28 May 1914.
Friedrich Wilhelm Goebel, 1914, Véhicule sans roues, FR Patent 469610, applied 13 March 1914, issued 25 May 1914.
Allgemeine Automobil-Zeitung, No. 19, 10 May 1914, p.21-22.
Allgemeine Automobil-Zeitung, No. 44, 29 October 1916, p.11-13.
Allgemeine Automobil-Zeitung, No. 51, 17 December 1916, p.31.
Allgemeine Automobil-Zeitung, No. 49, 9 December 1917, p.32.
Allgemeine Automobil-Zeitung, No. 23, 9 June 1918, p.37-38.
Neues Wiener Journal, 22 September 1909, p.9.
“Landpanzerkreuzer”, Neue Freie Presse, 3 January 1917, p.15.
Een Land-Pantserkruiser, De Tijd, 15 February 1917, p.2.
Wheel-less Truck Walks on Metal “Feet”, Popular Science April 1923, p.48. Accessed on babel.hathitrust.org.
Der “Landpanzerkreuzer”, Reichspost, 20 March 1924, p.5.
Der deutsche erfinder des tanks gestorben, Freie Stimmen, 5 November 1931, p.4.
Wiener panzerungeheuer, Kleine Volks-Zeitung, 12 November 1931, p.6.
De Tank. Uitvinder miskend en in armoede gestorven, Het nieuws van den dag voor Nederlandsch-Indië, 15 December 1931, p.19.
Der May-Freund Hans Möller karl-may-gesellschaft.de.
Was wir vom Weltkrieg nicht wissen, Walter Jost & Friedrich Felger, 1938, H. Fikentscher Verlag, p.317.
Viag 1917-1926, pdf posted by Hedi on the Landships Forum.
German Panzers 1914-1918, Steven Zaloga, Osprey Publishing, p.5-6.
Die Rad- und Vollkettenzugmaschinen des deutschen Heeres 1870-1945, Walter J. Spielberger, Motorbuch Verlag, p.139, 143.
historicalstatistics.org/Currencyconverter.html used to convert currency.
NB Austrian newspapers and magazines accessed at anno.onb.ac.at
Dutch newspapers accessed at delpher.nl.

German Empire (1906)
Armored Car – 1 Built

The Opel-Darracq Kriegswagen für höhere Truppenführer (Staff War Car) was first presented to the public in early 1906 at the automobile show in Berlin. At this show, the newest vehicles and trends in automobile building were presented to the world, including this open-topped armored car. Built by an Opel workshop in Berlin, it was one of the first (partially) armored cars made in Germany, closely followed by the Ehrhardt Ballon-Verfolgungsfahrzeug. Production of one vehicle took place in 1905 and it was offered to the German War Office.

Period artwork of the Car. Photo: Motorbuch Verlag

Early Armored Car Development

The idea of an armored carriage or vehicle to be used during battle dates back to the Middle Ages, but remained imagination until the invention of the internal combustion engine and the following emergence of commercial automobiles. With chassis becoming more durable, and engines more powerful, it was finally possible to mount armor on a self-propelling vehicle without too many limitations. Early examples are Simms’ War Car and the Austro-Daimler Panzerwagen, however, the function of these vehicles in combat was still to be discovered during the years preceding the First World War. Various roles were considered, like armored machine gun platforms and self-propelled (Anti-Balloon) guns. Anti-balloon was an important feature as they were used for artillery spotting and similar tasks. The Opel Kriegswagen, on the other hand, was developed to explore what role an armored car could have as a command car.

The Opel Company

Opel built its first automobile in 1899, but production did not get off the ground. It became more serious in 1901, when a contract was finalized with the French car manufacturer Darracq, and Opel received permission to build Darracq vehicles under license. A year later, Opel used Darracq chassis to built their own built bodies and advertised these vehicles as Opel-Darracq.
Opel also started to develop more powerful engines, and in 1903 it successfully built its first 4-cylinder engine. The first 4-cylinder engines were designed at the very end of the 19th century and were still an important novelty in 1903. In 1905, a service center and showroom opened its doors in Berlin and in this service center, the armored car was assembled. It was based on a 40-PS-Opel-Darracq-Fahrgestell. The vehicle was designed by Ing. Emil Aug. Schmidt.

The Opel 35/40 PS Luxus Doppel Phaeton, using the same chassis as the Kriegswagen was based on. Photo: opelmodellautos.de

Design

The layout of the Kriegswagen resembles commercial Opel-Darracq cars and seems to be based on the 35/40 PS Luxus Phaeton, possibly the doppel variant, with the engine in the front, the driver’s compartment in the center, and the passenger compartment in the back. Due to the vehicle being open-topped, a foldable canvas roof was installed. The vehicle was painted in a light color, probably light yellow or grey. A German Army eagle was also painted on the front and sides.
A covered spare wheel was mounted on the back of the vehicle and a luggage rack was mounted below it. The vehicle also carried a toolset for field repairs.

Technical Specifications

The vehicle was rear wheel driven and powered by a 4-cylinder Opel engine, producing 40 hp (29,8 kW) at 1500 rpm with a volume of 6.8 liters. The engine was water cooled and a ‘beehive’ cooler and fan were also installed. The engine power was transmitted using a four gear transmission. The fuel tank volume was around 40 liters. The wooden spoked wheels were equipped with pneumatic tires and suspended by semi-elliptical leaf springs.

Armor and Armament

The Commercial Motor Magazine from 15th February 1906, states that the armor, made of Spezialstahl (‘special steel’) and produced by the Krupp firm, had a thickness up to 2.362 inches (60 mm), but this is an error and should be 0.2362 inches (6 mm). The surface was designed with as few extensions as possible to increase the chance of bullets glancing off.
The armament consisted out of two quick-firing Mauser guns, which had a fire rate of 100 rounds per minute, and four Mauser C96 pistols. The guns were not mounted in a fixed position so they were hand-held by the crew and could be used in any position. When the vehicle was displayed at the show in Berlin, one gun was placed through one of the front vision ports.

An artist impression of the Opel Kriegswagen during action. Photo: Kriegstechnischen Zeitschrift 1906

Illustration of the Opel-Darracq Kriegswagen für höhere Truppenführer produced by Andrei ‘Octo10’ Kirushkin, funded by our Patreon Campaign.

Crew and Officers

A total of six seats were mounted in the vehicle. Two were meant for the general in command and his personal assistant. A further two revolving seats were meant to be used by staff officers while the two seats in the front were reserved for the driver and an attendant, who operated the front machine gun.
On each side of the passenger compartment, a telescope was installed. These could be used by the officers and were mounted on immovable stands. Two desks were mounted inside the vehicle that could be used for laying out maps or other similar equipment, used by officers. Two small electric lamps were also installed to allow vision when dark.
Other special arrangements, made for the officers, were the addition of two cases to store maps, two provision cases, one chronometer, a compass, and two sword sheaths.

The vehicle at the Berlin exhibition in 1906. Photo: The Commercial Motor Vol.11, No.49.

Fate

In 1905, the armored car was ordered by the German War Office and bought for an unknown amount of money. The exact date of when the vehicle was finished is unknown, but it was before the exhibition at the Berlin Automotive Show in February 1906. After the vehicle was inspected, the War Office was not satisfied with the vehicle, and no more vehicles were built.
During the same year, the company Ehrhardt developed and built a fully armored self-propelled anti-balloon vehicle (the first of its kind) but this vehicle was also rejected by the German War Office. Only in 1908 did interest in armored vehicles reappear, and several armored vehicles were used during the army maneuvers in 1909, including two French-built Charron Girardot & Voigt armored cars.

Specifications
Crew	2 (driver, attendant)
Passengers	4 (Officers)
Propulsion	40 hp, 4-cylinder engine
Speed	40 km/h
Armament	2x Mauser quick-firing guns, 4x Mauser C96 pistols, 2 swords
Armor	6 mm (0.24 in) all over
Total production	1

Links & Resources

Second report of the Berlin Show, 15th February 1906. From Commercial Motor, Vol. 11, No. 49.
Opel Militärfahrzeuge 1906-1956, Eckhart Bartels, Karl Müller Verlag, 1999.
Die gepanzerte Radfahrzeuge des deutschen Heeres 1905-1945, Walter J. Spielberger, Hilary L. Doyle, Motorbuch Verlag, 2002.
Die deutschen Radpanzer im Ersten Weltkrieg Technische Entwicklung und Einsätze, Heinrich Kaufhold-Roll, Biblio Verlag, 1996.
Kriegstechnischen Zeitschrift, 1906.
Pkw-Modellprogramm 1899-1995, Opel-Motorwagen 35/40 PS, page 18.
Opel History

German Empire (1906)
SPAAG – 1 Prototype Built

The beginning of the twentieth century saw the emergence of the first armored car designs. The first vehicles were partially armored, like the British Simms’ War Car and the French Charron, Girardot & Voigt (CGV) of 1902. Fully enclosed vehicles started to appear in 1905, like the armored car from CGV and the Austrian Austro-Daimler Panzerautomobil. Inspired by these vehicles, German engineer Heinrich Ehrhardt started to develop an armored car as well, but he had a new idea in mind; exploiting it as an anti-air vehicle.

Contemporary artist impression of the Ehrhardt BAK acting as infantry support during an attack. Source: Rotterdamsch Nieuwsblad

Heinrich Ehrhardt

Heinrich Ehrhardt was a German entrepreneur and industrialist. He was born in 1840 in the town of Zella-St. Blasius (Zella-Mehlis). Ehrhardt founded several factories, including the well-known Rheinmetall factory in 1889, located in Düsseldorf, as well as several car factories. In 1903, he founded the Gustav Ehrhardt Automobile AG in his hometown, which started producing both civilian and military trucks. From 1906 onwards, the factory started to produce trucks for the military only. During the First World War, these factories played quite a big role in the German war effort, with their most famous vehicle probably being the Ehrhardt E-V/4 armored car. Ehrhardt died in 1928, at the age of 88.

The Balloon and its Opposition

The development of the Ehrhardt BAK is not only connected to the development of armored cars in the early 20th century, but is also related to the development of military aircraft, especially balloons, during the same period. The 19th century saw the rise of a new weapon, the balloon. Its potential strategic and tactical use for military operations, like observing the battlefield, was well-recognized, especially in Germany, the home of Zeppelin. However, a new weapon also required a new weapon to fight it.

Development

Already in 1905, Ehrhardt experimented with the idea of an anti-air gun on a car chassis, when he mounted a small-caliber gun on an Ehrhardt-Décauville 16/20 PS chassis. Although the pivot design was inspired by anti-air guns made by Friedrich Krupp since the Franco-Prussian war from 1871, the elevation system and the gun itself were made by Rheinmetall, the company founded by Heinrich Ehrhardt.

The Ehrhardt-Décauville from 1905, equipped with a Rheinmetall gun. Source: Stanislav Kirilec
During 1906, Ehrhardt designed and built the Ehrhardt BAK. It was ready in time to be presented at the VII. Automobil Ausstellung (Car Exhibition) in Berlin at the end of 1906. It was the biggest car exhibition in Germany at the time and was also visited by the German Emperor Wilhelm II. He also inspected the Ehrhardt. It was the second time an armored car was exhibited at the show, as Opel already presented their Kriegswagen during the previous exhibition in early 1906.

Name

Like many early armored vehicles, the Ehrhardt BAK does not have an ‘official’ name. The most common designation: Ehrhardt Ballon Abwehr Kanone (Anti Balloon Gun), BAK for short, is also used in this article, but the vehicle often goes under different names like Panzerautomobil (armored car), Panzerkraftwagen (armored truck), Ballon Verfolgungsfahrzeug (balloon suppression vehicle), or Ballonabwehr Automobil (anti balloon car). Essentially, these different names are all descriptions of what the vehicle really is, an armored self-propelled anti-air gun, the very first of its kind ever produced.

The Ehrhardt being inspected by the German Emperor (x) at the VII. Car Exhibition in Berlin. Note the 5 cm shells standing on top of the engine compartment. Source: Public domain

Design

The Ehrhardt BAK was based upon a conventional chain driven light lorry, with rear wheel drive, the engine in the front, and driver compartment in the middle. The vehicle was protected by 3 mm thick armor all around and louvers were made on the front and sides of the engine for sufficient cooling. The armor thickness was criticized by military experts as they rightfully noted that the armor was too thin to stop enemy fire, and so it was only an unnecessary ballast and waste of precious resources.
The driver’s compartment offered space for the driver on the right and a commander on the left side. Both had one vision slot facing forwards and the complete front armor plate could be folded upwards for better vision but should be closed in case of direct combat. Doors were installed on both sides of the vehicle.
Although no official documentation is known about the color of the vehicle, a visitor of the Exhibition in Berlin notes in a Dutch newspaper that the armored car was grey. On pictures of the Exhibition, the Ehrhardt seems to be painted in a light color which suggests a lighter shade of grey.

A retouched image showing the vehicle with a half-opened front plate and gun in lowest depression of 5 degrees. Source: Contemporary newspaper

German Empire (1916-1917)
Wheeled Tank – 1 Prototype Built

After the British Army introduced the Mark I tanks on the battlefield for the first time in September 1916, the German War Ministry responded by ordering several German firms to design and produce a prototype for a similar war machine. One of the approached firms was Hansa-Lloyd based in the city of Bremen, which came up with a working design. Ten prototypes were planned to be built. The engineers of Hansa-Lloyd, having no experience with designing either armed or armored vehicles, came up with a big-wheel design which they called Treffas-Wagen. A single prototype was completed on February 1, 1917.

Hansa-Lloyd

The company Hansa-Lloyd Werke A.G. was set up in 1914 as a merger between Hansa-Automobil GmbH, established in 1905, and Norddeutsche Automobil- und Motorenwerke Aktiengesellschaft (NAMAG), established in 1906, which owned and produced the Lloyd car brand. The firm was located in Bremen in the Hastedt subdistrict, part of city district Hemelingen. Producing cars, trucks, and tractors, the firm had no experience with building any kind of armored vehicles when they were approached by the German War Ministry in September 1916 to build one. The director of Hansa-Lloyd, Robert Allmers, was part of the A7V committee in which several other representatives and leading experts of the German industry were seated.

Design

The vehicle is easily recognizable by its two wide and large front wheels, with a diameter of roughly 3 meters. Between these two large wheels, an armored fighting compartment was located which extended to the back in a tail-like shape. At the very end of this tail, a castor like steering wheel was attached which gave the vehicle a tadpole tricycle layout. The engine delivered enough power to reach the maximum speed of 10 km/h. The fighting compartment housed a crew of four; a commander, a driver, a gunner, and a loader. The armament installed during initial tests consisted of two Panzerbüchsen (AT rifles), which were capable of penetrating the British Mark I tank’s frontal armor.

What guns these were is a bit unclear, with sources either mentioning a Mauser type or 2 cm TuF guns. After some tests, the armament was removed. An alternative design, although never executed, saw the use of a 5.7 cm Maxim-Nordenfelt gun, the same gun as used in the Sturmpanzerwagen A7V tank.

Testing

When the vehicle was subjected to thorough tests in February and March of 1917, many fundamental problems were encountered. The guns had such a powerful recoil that, after firing just a few shots, the gunner could not continue shooting due to significant head and shoulder pains, which raised grave concerns over the vehicles operational ability. Another issue was the center of gravity which was too far forward. When driving over a ditch, there was a high chance the vehicle would flip itself, which actually happened during a test in the summer of 1917. The vehicle dug itself in, got stuck, and eventually flipped itself over.

All issues combined, this vehicle had serious engineering problems caused by the design, which is not so strange given that this vehicle was one of the first of its type and the first armored vehicle designed by Hansa-Lloyd. On May 14, 1917, a demonstration was held which included the Sturmpanzerwagen A7V wooden mock-up, the Orion-Wagen, the Dür-Wagen, and the Treffas-Wagen. After these trials, the OHL (Oberste Heeres Leitung – Supreme Army Command) concluded that the Treffas was unfit for combat use and rejected the design. Besides the fact that the vehicle did not perform very well, a reason for the rejection was the better alternative design, the Sturmpanzerwagen A7V tank, built by Daimler-Motoren-Gesellschaft, which went into serial production in October, the same month in which the Treffas was dismantled.

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The Idea of Big Wheel Tanks

The idea of armored big wheel tricycle vehicles emerged in other countries as well, most notably the Tsar Tank from the Russian Empire, although this vehicle was developed from a rather different perspective, and had different design problems. A vehicle, a bit more similar to the Treffas, was the Steam Wheel Tank developed in the US, although this vehicle had a delta tricycle configuration instead of a tadpole tricycle. The Steam Wheel Tank in itself is said to be a development of the Big Wheel Landships designed in Britain in 1915.
There were two main reasons why big wheels were thought to be practical, the first being that larger wheels make more ground contact which could reduce ground pressure, improving off-road maneuverability. The other reason was that large wheels can more easily overcome obstacles.

The Wargel LW 3

Although the Treffas-Wagen was the only Big Wheel vehicle built during the First World War and interwar period in Germany, during World War Two, a similar vehicle was built by Lauster, called the Wargel LW 3. Although the vehicles were not related, they do show similarities.

Conclusion

Baffled by the introduction of the tank, the German War Ministry hastily ordered several armored war machines. Although looking promising on paper, the Treffas-Wagen turned out to be a failure due to fundamental flaws in the design. The vehicle was scrapped in October 1917 and the experience gained by designing and testing the vehicle was never used in future projects. The Treffas-Wagen was one of many armored vehicle projects that never passed the blueprint or prototype stage in the German Empire during the First World War.

Specifications
Dimensions (L-H)	6 x 3 meters
Total weight, battle ready	18 tonnes
Crew	~ 4 (Commander, driver, loader, gunner)
Armament	1x 5.7 cm Maxim-Nordenfeldt or a 2 cm gun
Speed	10 km/h (6.2 mph)
Total Production	1

Sources

German tanks in World War I, Wolfgang Schneider & Rainer Strasheim, Schiffer publishing, 1990.
Kraftfahrzeuge und Panzer der Reichswehr, Wehrmacht, und Bundeswehr, Werner Oswald, Motorbuch Verlag, 1982.
Bremen1914.de, 18 untaugliche tonnen stahl, Max Polonyi.
Landships.info, Treffaswagen, Tim Rigsby.

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