At the beginning of the 20th century, futurists and engineers were hard at work thinking about the shape a fighting machine ought to take. Even the engineers settled on a shape we can all recognize as a "tank" in the 1940s (if you think it all ended at the FT-17, recall the unconventional shapes of the M3 Lee and T-35). People somewhat distanced from organized tank building still came up with exceptionally unconventional solutions.
The nature of CAMD RF is that every single document, no matter how insignificant, finds its way into the appropriate section of the archives once it has ran out of usefulness. For design proposals of "limited implementation potential", this was almost instant. CAMD RF contains a great many proposals for tanks that crawl, tanks that drill, tanks that fly (by catapult!), tanks that float, and tanks that roll. While I might eventually do an article on all sorts of crazy proposed designs, let's focus on some rolling ones for now.
- Good traction in deserts and sand (sand is its best road).
- Can easily traverse swamps, bogs, and can swim a significant distance.
- Spins in place (like a spinning top).
- It is a relatively light and voluminous simple object, and can be constructed from railroad fluid tanks.
- The tank can be made any size, with any armament.