This Versatile Cart can be used as a Hall's Carriage, a Fan Cart, and a Sail Demonstrator
The 3-wheel cart has each wheel mounted on a low-friction bearing and the wheel positions can be changed easily. A pull bracket to attach a string and a tray is provided for use as a Hall's Carriage. A sail and battery-powered motor propeller allow the cart to be used as a fan cart or to demonstrate sail propulsion. The sail is a low-speed airfoil made of foam 20cm across and with a sail span of 30cm. The cart also includes a metal plate that can act as a sail. Both can be used to demonstrate Bernoulli's principle. Requires two "C" batteries, sold separately. With instructions. Optional rocket accessory available.
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