Things catching on fire

[CrossverseCrisis]

Is there a way to know how fast one has to be moving to the point of catching on fire?

I recall that it's like Hypersonic, but i wanted to know if there's anything else to it that may suggest an exact value for it?

 

[The_real_cal_howard]

It depends on the material, but from my experiences, Mach 5 or Mach 23, but I'm pretty sure it's the latter.

 

[CrossverseCrisis]

I take Friction is a factor into it, yeah?

Was there like a calc done that got that latter result?

 

[The_real_cal_howard]

I just heard it from a calc group member, but don't remember who. A still-active one.

 

[CrossverseCrisis]

Ah. Was just wondering cause maybe it'd kind of help if we had a general calc to see how fast it truly takes for something or someone to get caught on fire and/or whatnot.

 

[The_real_cal_howard]

I understand

 

[The_real_cal_howard]

If you want a calc, you can use each value as a Low and high end respectively, but you're more likely to have the high end accepted.

 

[CrossverseCrisis]

Alrighty. I still wonder how the high end can be accepted more. I feel like having a reference for that works best but, i guess i can go for this instead for now.

 

[The_real_cal_howard]

I think the high end would be accepted more, as I feel we've used that more often recently than Mach 5. Unfortunately, I still don't have a reference, but it should still be usable.

 

[CrossverseCrisis]

Mmm...fair enough. Thanks for taking the time to answer all this, Cal.

 

[The_real_cal_howard]

No probs man . I got your back.

 

[CrossverseCrisis]

Though thinking about it, Mach 23 is also the speed to get out of Earth's orbit(yeah?) so i guess that works as a reference point, if only roughly yeah?

 

[The_real_cal_howard]

That makes sense. Never thought of it that way lol.

 

[CrossverseCrisis]

We can continue this on your wall, btw.

The question seems answered enough, though any calc member can reopen this again if they feel the need to answer this in their own ways.