The second smallest set of 1996 was the oddly named 8223 Hydrofoil. Nothing in the design of this little set really suggests a hydrofoil, especially given the complete lack of foils. It appears to be something more like an air boat. The "7" in the title, in any case, is easily explained by the sticker on the front. Watercraft are among the rarest of Technic subjects, so it is always nice to see one. This Tech Play model features only a single feature: a rear propeller which spins as a function of forward speed. The steering wheel is purely ornamental. This model also includes a Technic figure.
How hydrofoils in reality work you can find here via MIT: Click here for the MIT web page.
Main model |
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Features |
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Propeller |
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The hydrofoil drivetrain has to be on top of the boat. In principle a hydrofoil boat lifts out of the water when speed increases to reduce the drag of the water. In this case the 3-blade pusher propeller is driven by 2 wheels inside the frame of the boat. This to give a realistic effect of speeding and the pace of the propeller. Given the two stages of gear increase, an overall ratio of 4.5:1 drives the prop at a very respectable rate. The rubber tires on the wheels provide adequate traction on most surfaces to drive the prop without slipping. |
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Mini Figure |
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This boat is captained by a curiously gentleman with a big mustach and wearing a blue vest. He just owns one other vehicle next to this one the 8714. |
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Wheels and Tires |
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This set contains 2 sets of wheels and tires of type:
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Alternative Models |
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Parts List |
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Parts List |
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By Technicopedia