This is an example of why one should use SI units:

If the force of thrust is in newtons, and the speed is in m/s, then the power 
in watts is simply
        Power = Force * Speed.

Since there are 3.6 ks/h, you would have to divide by 3.6 to use speed in 
km/h:
        Power = Force * Speed / 3.6      (with Speed given in km/h)

How would you figure this out with pounds and horsepower?  I wouldn't.

On Monday 10 May 2004 04:14, Carleton MacDonald wrote:
> This is a question from another list.
>
> I can dig around to try to figure it out, but does anyone know the
> conversion formula off the top of his or her head?
>
> He is talking about pounds of thrust from an airplane turbojet engine.
>
> Thanks ...
>
> Carleton
>
> -----Original Message-----
>
> Sent: Monday, May 10, 2004 02:01
> To: all aboard
> Subject: Re: [A_A] Amtrak - 'energy hog travel choice'?
>
>
> Does anybody know how to convert "pounds thrust" to "horsepower". (Don't
> mix me up with KW!)

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