this post was submitted on 13 Feb 2025
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Russia Claims New Plasma-Based Engine Could Cut Mars Travel to Just 30 Days (gizmodo.com)
submitted 2 months ago by neme@lemm.ee to c/space@lemmy.world
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[โ€“] threelonmusketeers@sh.itjust.works 3 points 2 months ago (2 children)

The only actual metric they quoted is exhaust speed?

Not saying we shouldn't be skeptical, but isn't that the most important metric? A crazy-high exhaust velocity is how you get an engine with crazy-high specific impulse.

[โ€“] SkybreakerEngineer@lemmy.world 3 points 2 months ago

Fuel type, specific impulse, thrust, power consumption, engine mass and volume...

[โ€“] randombullet@programming.dev 3 points 2 months ago* (last edited 2 months ago)

I would argue that fuel consumption would be quite important, same with power usage.

Edit: and also exhaust mass. If it's 1g of mass exhausted then it's a moot point.