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  #21  
Old 15-09-2009, 06:42 PM
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Originally Posted by TrevorW View Post
I took that as a typo
it is.
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  #22  
Old 16-09-2009, 01:15 AM
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Originally Posted by Starkler View Post
Sorry you're out by a factor of 1000. 34W is a weak light bulb, 34kW could light up the MCG!
Hi,

I got curious about this. It turns out the MCG has 1680kW of lighting. Another reference says 1800kW.

So if that was an Emdrive it would be about 53Kgf of thrust. Probably not enough to send the MCG aloft.

Cheers

Last edited by GeoffW1; 16-09-2009 at 09:15 AM.
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  #23  
Old 16-09-2009, 09:21 AM
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renormalised (Carl)
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Quote:
Originally Posted by GeoffW1 View Post
Hi,

I got curious about this. It turns out the MCG has 1680kW of lighting. Another reference says 1800kW.

So if that was an Emdrive it would be about 53Kgf of thrust. Probably not enough to send the MCG aloft.

Cheers
No, but after 3 weeks, your ship would be getting along at a decent clip!!!
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  #24  
Old 16-09-2009, 05:44 PM
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A read further apparently there are claims it can't work and is a fraud

A 1 giga watt power source potentially could produce 25,000,000 lbs of thrust
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  #25  
Old 16-09-2009, 11:37 PM
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Quote:
Originally Posted by TrevorW View Post
A read further apparently there are claims it can't work and is a fraud

A 1 giga watt power source potentially could produce 25,000,000 lbs of thrust
That's why the British Government and EADS are funding the project... somehow I think those claiming fraud have an axe to grind, somewhere.

That's what they maybe quoting to make it sound as if it's too good to be true, however a simple look at the physics shows that it would never get to that much thrust simply because the Q value would breakdown at such high power ratings...the resonance effect of the waveguide cavity would collapse, using current waveguide technology. To produce and sustain that sort of thrust, the value for Q would have to be ridiculously high...10^100, or something like that. Almost perpetual motion, which is what I believe these detractors are using to criticise the work being done.

An engine with that size of power source might produce that thrust for something like 2 secs, but that's about it. It would grind to a halt really quickly...just couldn't sustain that sort of power output.
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