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Inspirational (lemmy.nz)
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[-] supersquirrel@sopuli.xyz 60 points 10 months ago* (last edited 10 months ago)

Also if you need your arrows to land all at the same time so you can fool the enemy into thinking you are many archers fire like this.

[-] NeatNit@discuss.tchncs.de 49 points 10 months ago

bottom projectile traveling at mach 5

[-] Tja@programming.dev 12 points 10 months ago

Bottom projectile is traveling at a normal speed, just fired last.

[-] KoboldCoterie@pawb.social 30 points 10 months ago

Then the distance must be almost zero, as it exhibits no drop over that range.

[-] Cawifre@lemmy.world 24 points 10 months ago

That might have something to do with this being a chart for powered missiles.

[-] KoboldCoterie@pawb.social 10 points 10 months ago

However, the comment was talking about arrows...

[-] HowAbt2day@futurology.today 17 points 10 months ago

I’m over here with some popcorn as nerds debate the project motion of a hypersonic missile named “arrow” and shit.

[-] ulterno@programming.dev 0 points 10 months ago

Go with a fantasy arrow made of light, for the last one.

[-] FishFace@piefed.social 4 points 10 months ago

The diagram is about normal unpowered shells. They use different amounts of propellant to achieve different projectile speeds

[-] Cawifre@lemmy.world 3 points 10 months ago

Y'know, I think you're right. That gray bit looks like the tank barrel. I mistook that as part of the projectile path, and I misinterpreted the overall design as a missile battery.

[-] FishFace@piefed.social 2 points 10 months ago

If you want to know more, look up Multiple Round Simultaneous Impact

[-] Tja@programming.dev 5 points 10 months ago

I see a significant drop...

[-] KoboldCoterie@pawb.social 2 points 10 months ago

Are we looking at the same image? DO I NEED TO GET A RULER?

[-] FishFace@piefed.social 1 points 10 months ago

That is not how this concept, time on target, works

[-] Tja@programming.dev 1 points 10 months ago

It works by firing at mach 5?

[-] FishFace@piefed.social 2 points 10 months ago

It's easier to just refer to "multiple round simultaneous impact" than to try to explain succinctly, especially since I already got the term kinda wrong (time on target is more of an umbrella category/earlier version)

[-] niktemadur@lemmy.world 2 points 10 months ago

I wanna see a reverse brachistochrone!

[-] tyler@programming.dev 53 points 10 months ago

Did nobody else notice that they’re pointing the bow lower than 45° but the line is drawn slightly upwards up compensate?

[-] jol@discuss.tchncs.de 26 points 10 months ago

If you keep falling short, cheat. Or if you keep falling short, your rich parents will prop you up.

So inspiring.

[-] OddMinus1@sh.itjust.works 4 points 10 months ago

Also, the arrow has some serious gliding effect on its way down.

[-] zxqwas@lemmy.world 27 points 10 months ago

In a frictionless vaccuum 45° would be max range.

[-] SatansMaggotyCumFart@piefed.world 12 points 10 months ago

Yeah you actually want a bit less then that.

[-] Ooops@feddit.org 15 points 10 months ago* (last edited 10 months ago)

Unless you use modern artillery. Then you want to aim even higher because at those ranges/heights it's beneficial to reach less dense air layers quickly.

[-] SpaceCowboy@lemmy.ca 12 points 10 months ago

The optimal launch angle would only be 45 in a vacuum. It'll be lower if you're on Earth where there's air resistance.

[-] ulterno@programming.dev 3 points 10 months ago* (last edited 10 months ago)

Yeah, that's why try multiple times and aim higher every time until 45°
Once you reach that, if you are still falling short, you know you have no chance, unless you increase the launch speed.

Of course, you can try to properly calculate drag for each projectile and set that as the maximum, but it's fine for a one-off, assuming you have enough arrows to try again.

[-] innermeerkat@piefed.social 4 points 10 months ago* (last edited 10 months ago)

Instructions unclear and took an arrow in the knee

[-] Ceruleum@lemmy.wtf 1 points 10 months ago

It's supposed to end up in the butt.

[-] niktemadur@lemmy.world 3 points 10 months ago

And if you still can't reach it, ask your god or gods for help,
as it's beyond the reach of Mr Newton or even Herr Leibniz.

[-] snoons@lemmy.ca 3 points 10 months ago
[-] RedBauble@sh.itjust.works 2 points 10 months ago

CAN WE GET MUCH LIGHTER

[-] NigelFrobisher@aussie.zone 2 points 10 months ago

That’s only about 30 degrees.

this post was submitted on 18 Oct 2025
433 points (98.2% liked)

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