Magnetic Propulsion

The method of propulsion is not a vital aspect of Krunchie's Cab. The steam engine was not vital to the railway system, and was replaced by diesel and electric engines. Similarly, there is a choice of  several methods of propulsion for Krunchie's Cab, for example: fossil fuel engine, electric engine, air suck and blow and mini-jet. I favour, however, magnetic propulsion. Electromagnets, located at intervals throughout the tubes, would be activated by a pulse of electricity to propel Capsules through the tube. Magnets would also be employed to slow Capsules when required.

This is somewhat different from the "simplest electric train" demonstrated in the following video. The video, however, helps to show how Krunchie's Cab would work.




In the above video, an AA battery, with a super-magnet attached magnetically to each end, in opposite polarity, creates a magnetic field in a tube comprised of coiled copper wire, which propels the battery through (or over) the coil. In Krunchie's Cab, electromagnets along routes would be activated by a pulse of electricity. (Electromagnets are active only when they receive an electric current).

Differences between "the simplest electric train" and Krunchie's Cab:

  • In the Simplest Train, (demonstrated in the above video) the power is provided by the Cab (an AA Battery). In Krunchie's Cab the power is from outside.
  • In the Train, a super-magnet is attached to each end of the Battery. Krunchie's Cab would be a plastic vehicle, with a metallic element. Such an element would probably be a metal nose cone and a metal end plate. These could be permanently magnetised or not, depending on the final design, and could be linked by a metal harness, or not. These features would be determined by the engineers designing an actual system. Since Krunchie's Cabs always move in the same direction, it is possible (if not probable) that the nose-cone and end-plates would be super-magnets.
  • In the Simplest Train, the entire tube is made of coiled copper wire. As the cab (the AA Battery) proceeds through the tube, the section of the tube around the cab is given an electric current by the Battery, which converts that section into a momentary magnet, propelling the cab along. In Krunchie's system, the electro-magnets could be copper spirals coiled around his plastic tube, placed at intervals along the tubes, or other device designed at time of implementation. These coils (or other electromagnets) would be momentarily magnetised by a pulse of electricity when required to accelerate or decelerate a travelling Cab.
  • Every cab-stop in Krunchie's system is attached to a tube-Circuit by an Accelerator (a tube in which the Capsule is accelerated) and a Decelerator (a tube in which the Cab is Decelerated). These tubes would be furnished with electromagnets designed to produce an acceleration from zero to 30 mph, (and vice versa), with or without assistance of gravity.
  • The copper coil tube in the Simplest Train provides considerable resistance to the moving cab. Krunchie's tubes will be designed to provide minimum resistance and silent operation.
  • The AA Battery is too long to provide smooth movement through bendy tubes. Krunchie's normal Cab would be proportionately shorter.
  • The Simplest Train is, of course, a very simple prototype of a tube system. It is not difficult to imagine the prototype extended to provide multiple connecting circuits, forming a network, with multiple off-line Cab-Stops, as in Krunchie's system.

Solar Power

Solar panels attached to, or painted onto Tubes, can supply most of the electricity.

Paint-on Solar Panels

Observe how a solar panel is built-up in the following video by painting solar paint onto a sheet of glass. Observe how the connected fan begins moving when the painted area is connected to the already-painted rim, connected to the original small, black, solar panel's nodes. Observe how the fan stops when the demonstrator's hand is passed over the painted area, blocking the sunlight.



Painted-on solar panels are, however, a rather trivial and fanciful feature, and not by any means essential. Conventional solar panels are probably more efficient, but these are also non-essential.

Using Solar Panels to drive a Capsule

Unlike the following simple examples of solar-powered toys, where the solar power is used directly to drive the movement, in Krunchie's Cab system, the solar panels (if used) would collect electricity to a permanent store which would provide the power to the system.

A simple solar-powered toy is built to the following design:

Light > Solar-Panel > Voltage > Current > Coil (Electromagnet) > Metal-Object

Daylight or other light-source energises a Solar Panel, creating a voltage difference between the  two poles of the Panel. The poles of the Panel are wired to a metal Coil, passing a current through the Coil. This creates a magnetic field around the coil, which attracts or repels a Metal-Object, causing it to move.

In the Solar Powered Toy Car depicted in the following video, the Coil and Metal-Object are internal to the the Electric Motor, delivering motion to the wheels through a cog.

Solar-powered home-made toy car:





Fixing a simple solar-powered toy:

The following video shows an enthusiast fixing a solar-powered toy by soldering a broken wire. It allows us to see the engine whereby a solar panel moves an object.

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