Re: jet engine

[jimp@xxxxxxxxxxxxxxxxxxxx]

STUARTe <jabluvs269@xxxxxxxxxxx> wrote:

> 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.

Then you are an idiot.

It would take an engine with 1000 kilograms of thrust.

Thrust is force, horsepower is power.

Power equals thrust times velocity and your velocity is zero.

-- 
Jim Pennino

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