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[-] Tankiedesantski@hexbear.net 37 points 8 months ago

The article says that the railgun part accelerates the plane to mach 1.7 and then the rocket on the plane fires and it accelerates further.

The Concorde was designed to cruise at mach 2, so that's a very survivable speed if the acceleration on the rail isn't too abrupt, like you said.

[-] appel@whiskers.bim.boats 28 points 8 months ago

I think the acceleration is the crucial part, the speed you are going at is irrelevant, just the change in speed

[-] Abracadaniel@hexbear.net 10 points 8 months ago

This is correct.

[-] plinky@hexbear.net 26 points 8 months ago* (last edited 8 months ago)

It’s still would be like 1-2 km, if they aim at 10g. And they still need to find another 20 machs from rocket booster.

Doing full railgun with small rockets is more poggers (without humans obv ) shrug-outta-hecks

[-] Coolkidbozzy@hexbear.net 27 points 8 months ago

Tests will be carried out at 1.2 mile long low-vacuum track high-speed maglev test facility in Datong, generally used when researching magnetic levitation train technology

Within coming years, the Datong test facility will be extended to 37.2 miles long, to achieve a maximum operating speed of a staggering 5,000km/h.

biiiiig track incoming

from daily mail

[-] Nakoichi@hexbear.net 21 points 8 months ago

That would still be a rough ride for a person, but it could absolutely revolutionize getting construction materials into orbit.

[-] Maoo@hexbear.net 17 points 8 months ago

If you assume humans are frictionless spheres they could probably ride on that second one

[-] Egon@hexbear.net 16 points 8 months ago

They will be spheres if they do ride on it. Several in fact.

this post was submitted on 15 Mar 2024
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