3 ms·
There are electronics and gyroscopes designed for >9,000 G loads, in guided artillery shells. Aerospace is awesome.
by os2warpman 1y ago
There are electronics and gyroscopes designed for >9,000 G loads, in guided artillery shells.
Aerospace is awesome.
- nandomrumber 1y ago88.2 m/s^2 For well under a second though, typically artillery muzzle velocity is, what, two to three thousand feet a second? Still, it’s wild that guidance electronics and control mechanisms can survive that sort of acceleration.
- Baeocystin 1y agoThat vacuum tubes(!) were part of that package, and were able to be that robust, still floors me every time I think about it.
- MathMonkeyMan 1y ago> 88.2 m/s^2 Isn't that more like 9g?
- nandomrumber 1y agoYes, thanks, I meant to write 88.2 kilometres / second squared.
- af78 1y agoAccording to https://en.wikipedia.org/wiki/M777_howitzer https://en.wikipedia.org/wiki/M777_howitzer (typical howitzer): - barrel length (x): 5.08 meters - muzzle velocity (v): 827 m/s Assuming a constant acceleration γ, x = γ * t² / 2 and v = γ * t Hence: - t = 2 * x / v = 12.29 ms - γ = v / t = 67316 m / s² = 7000 G A bit lower than 9000 G, but in the same ballpark. Certain rounds, like Excalibur (https://en.wikipedia.org/wiki/M982_Excalibur https://en.wikipedia.org/wiki/M982_Excalibur) or BONUS (https://en.wikipedia.org/wiki/Bofors/Nexter_Bonus https://en.wikipedia.org/wiki/Bofors/Nexter_Bonus), are sophisticated and are able to cope with such accelerations.