[Arlis]

I’m an EE and the most profound mystery about this weapon is that the electronics in the projectile that can maneuver it once launched can survive the G’s imposed upon it when the round is fired.

Anyone with physics background calculate the G’s upon the 155mm round when fired?

Outa my wheelhouse.....

[null and void]

There was an amazing article in, I think, Machine Design back in the 70s.

One Hell of a technological tour de force. The electronics package paid attention to every g-force experience by the round being fired, the kick of the powder charge, the centrifugal forces imposed by the rifling, the burretting(?) forces traversing the barrel, the set back forces transition to free flight.

AND the package had a center hole down the full length to allow safe passage of the shaped charge's metal jet!

[marktwain]

Having electronics which can withstand the G forces of an artillery launch was solved in the 1970’s or 1980’s.

The HARP project was launching shells with electronics into sub-orbital trajectories.

“Smart” artillery shells are now common in the USA.

[NorthMountain]

he most profound mystery about this weapon is that the electronics in the projectile that can maneuver it once launched can survive the G’s imposed

That problem was solved in the 1940s with the "VT" proximity fuze for, among other things, the 5"-38 dual purpose naval guns.