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I think trying to pin down precise speeds based on fights and zone size and such quickly gets weird, because for example when jonin fight it's said that it looks like they're just teleporting around faster than the eye can track, which, if taken literally would mean they're moving at like hundreds of miles an hour, even if only in chakra boosted spurts. (Even bog standard human eyes can easily track things like 100+ MPH fastballs etc especially standing at a distance.)
And.. why is that impossible, exactly? They are ninja. And that kind of speed is consistent both with their dramatic depiction in the narrative (as mentioned in your post) and the distances they can move in combat per Turn, both when using average Zone size and comparing stats in relative terms. A Jounin with Ath 60 and two Vacuum Step 60 supplementals can move 21 Zones in one Round, being 21 times faster than a civilian and since those have AB 1 in physical skills (iirc Skill 10 was Peak Human or mildly superhuman) and average sprinting speed irl is 6.7m/s, its reasonable for Jounin to be moving in short bursts of 140m/s (313mph) at the least, if they have a single movement jutsu.
 
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About 5 minutes casual walk, or a few 10s of seconds at ninja sprint speed.

I'm not sure what sort of remote communication you might have set up, but you can assume you've taken reasonable basic precautions. A couple of seals blowing up in quick succession would certainly be a valid "come unleash hell" signal that you might have prearranged.
5 minutes = 300 seconds, so ninja can sprint 30x "casual walk" speed.

Random Google search gives me 3mph as a "casual walk", so 30x that is 90mph.
 
I think trying to pin down precise speeds based on fights and zone size and such quickly gets weird, because for example when jonin fight it's said that it looks like they're just teleporting around faster than the eye can track, which, if taken literally would mean they're moving at like hundreds of miles an hour, even if only in chakra boosted spurts. (Even bog standard human eyes can easily track things like 100+ MPH fastballs etc especially standing at a distance.)

So IMO a lot of things stated for either mechanical simplification or for cool-sounding sequences are going to be questionable for trying to draw hard numbers. It's a similar issue to power scaling threads always coming to crazy conclusions based on one-off feats.

I think all we have hard numbers on are how long ninja can "jog" for and at what speeds.
I think this is the proper take. Unless any of the QMs want to weigh in

@eaglejarl @Velorien @Paperclipped

Roughly how fast can ninja sprint with chakra boost?

A normal human ultra-marathoner can do something like 5mph over the long haul. If we extrapolate that to ninja doing 20 mph over their long haul then ninja should be able to do roughly 80 mph sprinting. That's ~35 m/s. Which is enough to cover a few Zones per combat round. With some wiggle room for faster and slower ninja.

I think this makes sense, but I understand if the QMs don't agree.
 
For context, human terminal velocity is ~120 mph bellyflopping, ~150-180 mph head down.
Didn't he have skywalkers to boost his speed further though? Its not a human falling, its an S-rank ninja flying down, aided by the pull of gravity. They could barely follow Hidan as is. Plus, I think the important part is that while the size of a Zone is arbitrary, the relative speed of ninja is not as it is based off of Skills and their levels, in a way that can be directly compared. And since they are operating within the same span of time (a Round), a Jounin that runs 7 Zones as a Standard and then Vacuum Steps twice for 14 more, for a total of 21 Zones, moves seven times faster than a Genin that just runs 3 Zones and finishes their movement - who itself is thrice as fast as a civilian with sub-10 stats.

Thus as far as what happens within the combat system where the speed actually matters is concerned, jounin can move 20+ times faster than an average human irl through use of movement techniques for bursts of speed, and that places them at ~300mph at peak burst speed, or ~100mph just sprinting with no movement techniques at Athletics 60.

As for whether that's the intent I cannot say of course. It might not be. But that is what happens within the combat simulation, regardless of the distance spanned by each Zone, and its consistent with depictions of fighting jounin appearing as blurs to the naked eyes and such.
 
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Could we put a thumbnail sized directional explosive at the back of a crossbow bolt or arrow (with a tapered end to fit the seal), and then try shooting the arrow/bolt while activating the seal with a half second activation delay? I feel like as long as our thrust vector is sufficiently centered we could get some super fast arrows going.
 
Could we put a thumbnail sized directional explosive at the back of a crossbow bolt or arrow (with a tapered end to fit the seal), and then try shooting the arrow/bolt while activating the seal with a half second activation delay? I feel like as long as our thrust vector is sufficiently centered we could get some super fast arrows going.
I think that this is one of these things that works better in principle than in practice.

Based on the setting's known issue with the inconsistency of chakra I'd expect that the timing tolerance isn't tight enough for this to work. If you want to be able to aim, the seal has to go off at exactly the same time, every time.

That means 500ms +/- 100ms is unacceptable, if we could get it down to 500ms +/- 10 ms that might be workable. But I lean towards thinking the former is much more likely per the worldbuilding of the setting.
 
I think that this is one of these things that works better in principle than in practice.

Based on the setting's known issue with the inconsistency of chakra I'd expect that the timing tolerance isn't tight enough for this to work. If you want to be able to aim, the seal has to go off at exactly the same time, every time.

That means 500ms +/- 100ms is unacceptable, if we could get it down to 500ms +/- 10 ms that might be workable. But I lean towards thinking the former is much more likely per the worldbuilding of the setting.

The point of the timer is that it should go off after the initial impulse from the bow/crossbow, so that the energies add up. So I don't think the timer matters too much as long as we can make sure that :
  • it happens after the projectile is in the air already
  • it happens before the projectile hits the target
Of course, if we really want to ensure better tolerance, we can pair the rocket boot (not directional explosive, I forgot that DEs don't impart any force to the user) with an ARS or MARS to activate right as it's about to leave the radius of the seal. We know from experience that while there's differences in the delay between different ARS/MARS activations, it's still pretty much instantaneous.
 
The point of the timer is that it should go off after the initial impulse from the bow/crossbow, so that the energies add up. So I don't think the timer matters too much as long as we can make sure that :
  • it happens after the projectile is in the air already
  • it happens before the projectile hits the target
Of course, if we really want to ensure better tolerance, we can pair the rocket boot (not directional explosive, I forgot that DEs don't impart any force to the user) with an ARS or MARS to activate right as it's about to leave the radius of the seal. We know from experience that while there's differences in the delay between different ARS/MARS activations, it's still pretty much instantaneous.

No, the timing is extremely necessary to actually hit anything. The bolt won't be on a flat trajectory in a vacuum, gravity will pull it off course by ~1m in that 0.1s difference between activations. And since it's totally random error. You can't train to get better. It's baked into the system. A circular area probable, if you will.
 
No, the timing is extremely necessary to actually hit anything. The bolt won't be on a flat trajectory in a vacuum, gravity will pull it off course by ~1m in that 0.1s difference between activations. And since it's totally random error. You can't train to get better. It's baked into the system. A circular area probable, if you will.

In that case, we'd need to make a sort of rail for the arrow to move through, which could be done with some sort of "instant legolas" like mechanism, which is very possible with medieval technology. Also I feel like the delay of an ars/mars between activations is much lower than 0.1s, because normal humans can already distinguish 0.1s time intervals. If the delay seems almost instantaneous to ninja then it would be an order or magnitude less, maybe more. Unless we have QMs saying that the delay range of an ars/mars set to activate instantly is +/- 0.1s.
 
In that case, we'd need to make a sort of rail for the arrow to move through, which could be done with some sort of "instant legolas" like mechanism, which is very possible with medieval technology. Also I feel like the delay of an ars/mars between activations is much lower than 0.1s, because normal humans can already distinguish 0.1s time intervals. If the delay seems almost instantaneous to ninja then it would be an order or magnitude less, maybe more. Unless we have QMs saying that the delay range of an ars/mars set to activate instantly is +/- 0.1s.
For visual stimulus, the fastest human reaction time ever recorded is 0.1s.

Normal humans are like 0.2s, a little faster for auditory stimulus.

Even if all ninja are at the peak of human reaction time. They'd struggle distinguishing 0.1s from 0.01s.
 
For visual stimulus, the fastest human reaction time ever recorded is 0.1s.

Normal humans are like 0.2s, a little faster for auditory stimulus.

Even if all ninja are at the peak of human reaction time. They'd struggle distinguishing 0.1s from 0.01s.
Iirc, the WoG is that without chakra/chakra boosting, every ninja is peak human physicality. With chakra, shit gets weird (see: an Akimichi ninja shattering a civilian's arm and shoulder by shoulder-checking them while unconsciously Boosting while angry).
 
Iirc, the WoG is that without chakra/chakra boosting, every ninja is peak human physicality. With chakra, shit gets weird (see: an Akimichi ninja shattering a civilian's arm and shoulder by shoulder-checking them while unconsciously Boosting while angry).

You can't chakra boost Alt for determining initiative.

I take that to mean that peak human is about as good as it gets without specialized jutsu. Maybe a bit better.
 
@eaglejarl @Velorien @Paperclipped

Roughly how fast can ninja sprint with chakra boost?
We're not going to pin down precise speeds for obvious reasons, but have a general preference for speeds on the lower end of the numbers being thrown around, closer to 100mph than 200+mph. Of course, terrain features, battle conditions, and even the ninja's rank affects sprinting speeds.
 
For visual stimulus, the fastest human reaction time ever recorded is 0.1s.

Normal humans are like 0.2s, a little faster for auditory stimulus.

Even if all ninja are at the peak of human reaction time. They'd struggle distinguishing 0.1s from 0.01s.

Kagome-sensei looked dubious about it, but he reached out one finger and triggered the MARS. An instant later, the two explosives went off, one after the other but so close together than only trained ears such as those of anyone on Team Uplift could have spotted the difference.

Auditory perception is much finer than visual perception, at least in terms of the shortest amount of time you can perceive. People can detect latencies of 5-10ms on musical instruments (e.g. latency between guitar pluck and amp sound). I don't think it's farfetched to say that the mars delay is on the order of individual milliseconds.
 
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