“Full Impulse” is generally considered to be 0.25c.
The force of an impact of a Voyager-sized (700 kilotons) mass at that speed would be many times greater than that of the asteroid that killed the dinosaurs.
And I think its reasonable to assume that 0.25c isn’t a hard limit, but rather an agreed-upon speed limit for starships.
If you could make an object go even faster, that energy goes up by a few orders of magnitude.
0.9c sounds doable. I don’t know about any faster, but maybe?

At that speed, the force of Voyager hitting a planet would be at least hundreds of times greater than the aforementioned asteroid. This sounds like it would completely sterilize the planet.

Which begs the question, why don’t we see weapons like this in star trek? I’d figure the Federation wouldn’t use them, but the Federation isn’t alone.

One argument I tend to see when this comes up is, that the shields would block it. Which then makes you think, if they could block that, then what couldn’t they block? It makes them pretty much invincible. So I don’t think that’s it.

  • wjrii@kbin.social
    4·
    2 years ago

    At least in Trek, 24th century shields are extremely good at handling physical impacts. Even in a compromised state, with one of the shield processors having escaped and gone rogue, an ageing California class was able to take several hard impacts without so much as a scratch. They might have been able to resist indefinitely if their shields were performing optimally.

    If addressing kinetic impacts this isn’t part of the handwavium, then there’s frankly very little way to enjoy Star Trek. I am just an old English major, but various sources put the Enterprise-D at about 4 million metric tons of mass. If you accelerate that to even 5% of c with impulse drives, it would impact with a force of about 2/3 or more of the asteroid that wiped out the dinosaurs, and that’s just one ship operating well within the accepted performance of the impulse drives.