A somewhat similar self-moving wagon was designed for Maximilian I and in 1558 Holzschuher describes a battle car a picture of which shows it in action preceded by infantry and flanked by cavalry (see Diagram 3).
In 1599 Simon Stevin is supposed to have constructed for the Prince of Orange two veritable landships; these consisted in small battleships fully rigged, mounted upon wheels (see Diagram 4).
[Illustration: DIAGRAM 4. SIMON STEVIN’S LANDSHIP, 1599.]
“The earliest English patent for a self-moving wagon which could, if desired, be used in war, was probably that taken out by David Ramsey in 1634. In 1658 Caspar Schott designed one to inclose 100 men and to be employed against the Turks.”[11]
All the users of these inventions were destined to disappointment, for the science of mechanics was not sufficiently advanced to render self-movement practical and it was not until the middle of the eighteenth century that a fresh attempt was made to reintroduce so essential a weapon as the war cart. The following account of this reintroduction is quoted from Mr. Manchester’s most interesting article:
“After the practical application of steam by Watt in 1765 we find an early attempt to apply it to land transportation in what must be considered the first steam automobile. As early as 1769 Cugnot in France set a steam boiler upon the frame of a wagon and succeeded in making the wagon go. His idea was that this invention could be used in war, and on this presumption he was the next year assisted by the government to construct an improvement. The speed, however, was scarcely more than 2½ miles an hour, and the machine would run only twenty minutes before it had to stop for fifteen minutes to get up more steam. In his first public trial he had the ill-luck to run into and knock down part of a stone wall. This led to his being temporarily cast into jail, and his experiments were abandoned. Napoleon must have visualised the possibilities of Cugnot’s machine for military purposes, for when the great general was selected a member of the French Institute, the subject of his paper was ‘The Automobile in War.’”
The “battle car” had now, at least experimentally, evolved into the steam wagon which could run on roads; the next step was to invent one which would move in any direction across country, in other words to replace the wheels by tracks. The evolution of the caterpillar tractor brings us to the fourth phase in the evolution of the “battle car.”