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Not sure if it classes as a superfast

I don't have one, but I can tell you that it was marketed as part of a range called "Zoomy Balloonies".

Here is a box of them sold via Vectis not so long ago.

http://www.vectis.co.uk/AuctionImages/312/1283_m.jpg

One of many alternative toy products from the mighty Lesney company. Never had one so not sure how well they went, but you had to attach a blown up balloon to the back module and I think the pressing of the button on top opened a valve allowing the balloon's air to escape forcing the toy forwards along a smooth surface, the operation working in a similar way to how the Hovercraft works.

GHOSTHUNTER.

GHOSTHUNTER wrote:One of many alternative toy products from the mighty Lesney company. Never had one so not sure how well they went, but you had to attach a blown up balloon to the back module and I think the pressing of the button on top opened a valve allowing the balloon's air to escape forcing the toy forwards along a smooth surface, the operation working in a similar way to how the Hovercraft works.

No.
The air in the balloon, being slightly above atmospheric pressure, escaped via a piece of rubber with a pinched end, making a high-pitched squealing sound and, in so doing, created a jet of air at the back of the "vehicle". As a result of action and reaction, the air leaving at the back propelled the "vehicle" forwards. (Exactly the same propulsion principle as a rocket.)

Thank's Hugh, was not sure if the Balloon sat on top or at the rear and I did not know this toy was an Audible one, don't think I'll be collecting them

Ghosty.

"Blow 'em up and hear 'em go" was the slogan.

GHOSTHUNTER wrote:Thank's Hugh, was not sure if the Balloon sat on top or at the rear...

Sorry. I should have made that clear. The balloon sits on top, over the opening in the middle.

Idris wrote:

GHOSTHUNTER wrote:One of many alternative toy products from the mighty Lesney company. Never had one so not sure how well they went, but you had to attach a blown up balloon to the back module and I think the pressing of the button on top opened a valve allowing the balloon's air to escape forcing the toy forwards along a smooth surface, the operation working in a similar way to how the Hovercraft works.

No.
The air in the balloon, being slightly above atmospheric pressure, escaped via a piece of rubber with a pinched end, making a high-pitched squealing sound and, in so doing, created a jet of air at the back of the "vehicle". As a result of action and reaction, the air leaving at the back propelled the "vehicle" forwards. (Exactly the same propulsion principle as a rocket.)

In other words:

F = m X a

F- Force
m - mass
a - acceleration

or something like that

This thread's just full of hot air!