Vezdekhod

Overview and classification

Vezdekhod was Alexander A. Porokhovshchikov’s attempt to develop a motor vehicle capable of moving beyond the roads available to ordinary wheeled transport. The project began in 1914 and produced a running experimental machine in 1915. Its most recognizable feature was a single broad belt beneath the vehicle, rather than the paired tracks associated with later tanks. Small wheels provided a separate means of steering. Sources

The important distinction is between that tested mobility vehicle and the armored fighting vehicle envisaged around it. The available evidence does not establish a completed, armed and armored service tank. Its evidence supports one experimental vehicle, uncertain armor installation, and proposed armament that is not established as a confirmed working fit. A later project, Vezdekhod No.2, belongs to the development story but remained a proposal. Neither project acquired an operational service history. Sources

Proposal, funding, and construction

Accounts place the initial concept in August 1914 and describes the submission of drawings to General Nikolai Danilov in January 1915. Funding followed, and construction took place at Riga. Its cited Russian National Guard historical account gives the allocation as 9,660 rubles and 72 kopecks. That is a reported project allocation, not a verified production-unit cost or a basis for an unsupported modern-currency conversion. Sources

The work concentrated on an unusual way of distributing a small vehicle’s weight over soft ground. Porokhovshchikov sought support for the larger military promise of the machine, while the prototype offered a practical test of part of that promise. Claims connecting particular industrial organizations with the construction remain unconfirmed; the account is more secure about the Riga setting than the full chain of workshop responsibility. Sources

A first test is dated 18 May 1915 in the cited sources. The ensuing trials and modifications matter more than an isolated maximum-speed figure: the program had to demonstrate useful steering and sustained movement over the surfaces for which it had been proposed. Sources

Running gear, hull, and proposed fighting equipment

The broad rubberized-fabric belt ran around four drums. A small petrol engine, commonly identified in the published sources as a Ford unit of about 10 horsepower, drove the mechanism. This was not a two-track differential-steering arrangement. The side wheels and the central belt had different jobs, and their interaction became an important limitation during testing. Sources

The physical body of the tested vehicle also differ from the proposed armored body. Accounts record an account describing a plywood hull, while other descriptions discuss protection without securely establishing its installation on the running prototype. Porokhovshchikov’s work on layered armor is relevant to his wider ambitions, but the existence of an armor experiment does not demonstrate that the trial vehicle carried the same protection. Sources

A machine gun and turret appear in descriptions of the proposed fighting arrangement. Their depiction in later diagrams is not evidence that the photographed prototype had a completed operational weapon installation. The often repeated four-ton weight is not established as a measured trial weight without further documentation. Sources

What the trials did—and did not—demonstrate

Accounts describe favorable movement on some surfaces but serious shortcomings in mud, snow, and steering. A reported road speed of about 25 kilometres per hour does not resolve those shortcomings. Other, higher speed claims circulate in the source tradition, but they cannot be combined into a single established performance figure. Sources

Its account describes inadequate control on difficult ground and the need for further development rather than a successful all-terrain combat trial. Water-crossing capability is not established by the evidence assembled here. The name and intended role of the vehicle cannot be allowed to substitute for a documented test result. Sources

The program lost official financial support in 1916. These outcomes place Vezdekhod among experimental solutions to a real mobility problem. They do not justify either dismissing the work as meaningless or presenting it as a fully realized tank held back solely by administrative hostility. The surviving research supports a more limited assessment: a running experiment with unresolved practical and military requirements. Sources

Vezdekhod No.2 and the limits of the family tree

The 1917 Vezdekhod No.2 proposal expanded the fighting-vehicle concept. Accounts record projected features, including a larger crew and a more elaborate machine-gun arrangement, but rates important details as uncertain. It does not establish that this second vehicle was built. Sources

The shared designer and name provide a legitimate reason to discuss the projects together. They do not make all specifications transferable between them. A value reported for the 1915 machine cannot automatically fill an empty field for No.2, and a proposed No.2 feature cannot be retrospectively added to the earlier prototype. Sources

The project’s evaluation records also do not identify an operational tank unit. There is no demonstrated combat, export, or licensed-production history to distribute among multiple operator pages. Vezdekhod and the Tsar Tank were separate projects despite appearing together in some chronological accounts. Sources

Historical assessment and the visual record

Vezdekhod became part of a larger debate over priority in tank development. The accounts distinguish celebratory accounts from more cautious institutional histories and does not establish direct technical influence on later successful tank programs. The most defensible account separates conceptual ambition, a running demonstrator, and an operational weapon system rather than assigning them the same meaning. Sources

The visual record needs the same distinctions. A photograph of the early vehicle is different evidence from a later explanatory cutaway, a drawing associated with No.2, or a portrait used for biographical context. Those images can all contribute to the article, but not as four independent photographs of completed tanks. Sources

The prototype’s exact body and protection, the No. 2 design, the origin of competing speed figures, and the fate of the original Vezdekhod remain uncertain. Sources

Photograph and image credit

Background reading and references. Each photograph has its own source and credit.

Sources and further reading

Background reading and references. Each photograph has its own source and credit.

Overview and classification

Proposal, funding, and construction

Running gear, hull, and proposed fighting equipment

What the trials did—and did not—demonstrate

Vezdekhod No.2 and the limits of the family tree

Historical assessment and the visual record

Photograph and image credit

Sources and further reading

Continue exploring