>
> > I suspect must have interpreted this wrongly.  Is this saying
> > that having the water going through a 180 degree change
> > in direction before exiting provides more thrust than having
> > a straight path from the pressure vessel to the exit?  I'd have
> > though just the opposite as the change in direction is bound
> > to reduce the flow over a straight pipe
> >
> > Regards
> >
> > Mike
>

> -----Original Message-----
> From: Jinx [mailto:joecolquitt@CLEAR.NET.NZ]
> Sent: 09 October 2003 12:24
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [OT:] Not quite a water rocket
>
> The big tank at the end of the track is full of pressurised water.
> When the valve is opened an 18" diameter jet of water shoots
> out and hits a U-bottomed bucket (like the scoop on an earth-
> mover or front-end loader) on the back of the carriage. The
> "top" of the bucket is facing the water jet, the bottom is in the
> carriage. The water goes in at the top edge of the top of the
> bucket, follows the side, curls around the U-bottom and then
> exits at the bottom edge of the bucket. Which is the plume
> heading towards the top left of the picture


Right, that makes much more sense.  I bet that would be a fun ride :o)

Mike




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