this post was submitted on 06 Jan 2024
73 points (100.0% liked)

World News

22057 readers
106 users here now

Breaking news from around the world.

News that is American but has an international facet may also be posted here.


Guidelines for submissions:

These guidelines will be enforced on a know-it-when-I-see-it basis.


For US News, see the US News community.


This community's icon was made by Aaron Schneider, under the CC-BY-NC-SA 4.0 license.

founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
[โ€“] [email protected] 16 points 10 months ago* (last edited 10 months ago) (1 children)

The thing with our current hypersonic missiles is that they're only hypersonic during the transit. They don't hit the target at hypersonic speeds. Traveling at those speeds creates plasma around the missile which prevents communication with airplanes, satellites or ground based radars. You also have to be high up in the atmosphere where air is thin or otherwise your missile is going to turn into a fireball way before it reaches the target. This is what also prevents you from attaching a seeker into the front of the missile; that would melt aswell.

This is why Ukraine has shot down Russian "hypersonic missiles" with the US patriot system even though that should be impossible. It is impossible while the missile is still hypersonic but that's not when you intercept it. You wait for it to get closer and slow down first. That's why Kinzhal doesn't really count as a hypersonic weapon or if it does then so does the German V-2 from the 40's.

[โ€“] [email protected] 4 points 10 months ago* (last edited 10 months ago)

I don't get the claim about it being "impossible" to shoot it down while hypersonic, either.

So maybe it's high enough that you don't have any interceptor missile capable of reaching that altitude... but if you had one, that hypersonic ball of plasma is not "hyperluminic", all that radio noise is going to light up on any radar like a beacon. Sounds like it should be easy to predict its trajectory, particularly knowing that it can't maneuver much at hypersonic speeds, so it should be even easier to plot an intercept course.

It may by impossible to shoot it down from behind, or from a plane right underneath that doesn't have hypersonic interceptor missiles, but from any position in front of the enemy missile... you could float a balloon onto its path, and hit it.

Also, there is lasers. They may not be great as an offensive weapon, or too easy to mount onto a plane, and need several seconds to burn an incoming missile to a crisp... but they do work at the speed of light, can't beat that.