Re: jet engine

["STUARTe" <jabluvs269@xxxxxxxxxxx>]

Paul Cardinale wrote:
> STUARTe wrote:
> > a jet engine could be used to hold 1000 kilograms stationary 6 feet off
> > the ground. it would require a specific amount of horsepower to sustain
> > this situation. the question is: how much horsepower?
>
> Depends upon a number of factors including atmospheric consditions and
> the diameter.
> All the the power is expened accelerating a column of gas downward.
> The larger that column, the less power expended.
>
> Paul Cardinale

i claim this can be solved by choosing an arbitrary value for the
exhaust velocity.
the website was a good one but it doesn't help solving this particu;ar
problem.