Escape Velocity for Earth

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Tinker Dragoon
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Unread post by Tinker Dragoon »

From the surface of the earth it's approximately 25,054 MPH. If one assumes the speed of sound to be 761.2 MPH (which technically only applies at sea level), this works out to about Mach 33.
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Braden Campbell
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Unread post by Braden Campbell »

But by using a contra-gravity generator, such as is apparently common in Phase World, the speed is greatly reduced...
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cyber-yukongil v2.5
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Unread post by cyber-yukongil v2.5 »

That would be Flight 15 APs.

whoops, wrong game :D
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glitterboy2098
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Unread post by glitterboy2098 »

11.2 kilometers per second.

roughly.... 40320 kilometers per hour.
palladium mach 37.6

1072kmh= mach 1 in palladium.

http://en.wikipedia.org/wiki/Escape_velocity

thats from the ground. at 9000km out, it's a mere 7.1 kms. or 25560 kmh.
palladium mach 23.8


no ships in any palladium space game can actually leave orbit......
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glitterboy2098
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Unread post by glitterboy2098 »

darkmax wrote:
glitterboy2098 wrote:11.2 kilometers per second.

roughly.... 40320 kilometers per hour.
palladium mach 37.6

1072kmh= mach 1 in palladium.

http://en.wikipedia.org/wiki/Escape_velocity

thats from the ground. at 9000km out, it's a mere 7.1 kms. or 25560 kmh.
palladium mach 23.8


no ships in any palladium space game can actually leave orbit......


Except those with contra-gravity systems.

Actually if you consider the old Robotech as Palladium's stuffs, you will realised that the Legios can breach Earth's atmosphere at Mach 8 (I think the figure is correct). That makes little sense compared to the one stated in Wikipedia.


right, because Robotech is a role playing game designed for simplicity, while the wikipedia numbers are real physics.

and even contra-gravity systems, if they work like phaseworld claims, wouldn't be able to break orbit. they'd reach the edge of the gravity well, then their counter-gravity feild no longer has gravity to work against, and they'd fall back towards the planet because they hadn't reached escape velocity.

as for breaching atmosphere, that's different, you can do that without reaching orbit, much less escape velocity. heck, once your out of the stratosphere, you above 90% of the air. a low earth orbit is 200 to 1200 km above the surface, and requires only around 5 km/s or more, about palladium mach 18 or so.


so few palladium space vessels could actually reach orbit.....
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