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Old 01-21-2014, 09:54 PM   #51
Ulzgoroth
 
Join Date: Jul 2008
Default Re: EuroSpace E950 Minerva Executive Transatmospheric Vehicle

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Originally Posted by jeff_wilson View Post
How do the jets could give you trajectory high enough to re-enter in the first place?
A streamlined craft with a single jet engine system has an airspeed of 2500 mph. On a ballistic trajectory, that's fast enough to send you 63 kilometers straight up from the highest altitude that your engine operates at (it should work above 15 km on Earth).

You can get into space without a rocket. Staying there is harder.
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Old 01-21-2014, 11:23 PM   #52
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Default Re: EuroSpace E950 Minerva Executive Transatmospheric Vehicle

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Originally Posted by Ulzgoroth View Post
A streamlined craft with a single jet engine system has an airspeed of 2500 mph. On a ballistic trajectory, that's fast enough to send you 63 kilometers straight up from the highest altitude that your engine operates at (it should work above 15 km on Earth).
I don't think you can expect to get maximum speed going straight up, the weight of the aircraft offsets against thrust.
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Old 01-21-2014, 11:31 PM   #53
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Default Re: EuroSpace E950 Minerva Executive Transatmospheric Vehicle

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Originally Posted by jeff_wilson View Post
I don't think you can expect to get maximum speed going straight up, the weight of the aircraft offsets against thrust.
So put in a second jet.

Even subtracting 1G, 5 jet engines could lob you over the ISS while leaving room for an ion drive.
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Old 01-22-2014, 12:08 AM   #54
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Default Re: EuroSpace E950 Minerva Executive Transatmospheric Vehicle

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Originally Posted by Ulzgoroth View Post
A streamlined craft with a single jet engine system has an airspeed of 2500 mph.
According to a design system with little correlation with reality, anyway.
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Old 01-22-2014, 12:16 AM   #55
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Default Re: EuroSpace E950 Minerva Executive Transatmospheric Vehicle

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According to a design system with little correlation with reality, anyway.
Not contesting that, but munin's original reference was to SS6.
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