[BBQToadRibs]

70km and eventually 100km within 4 years.

That’s just an insane “reach out and touch someone.”

I wonder what accuracy is at that range with so many variables on that length/arc of a flight path. Some serious number crunching in there.

[Mariner]

“Some serious number crunching in there.”

The computer does it, or it doesn’t get done. To include weather drones/balloons to measure wind along the way.

[PROCON]

40 years ago, we fire direction center guys could manually, (artillery slide rule/chart) plot a 175mm, firing 10 miles downrange, to impact within 10 meters of target, taking all variables into account: weather/wind direction, earth rotation, round rotation, etc.

Nowadays with GPS I imagine much better accuracy.

Of course with nuke rounds, (which we never did fire during the Cold War, thankfully), impacting in one grid square was close enough.

[Captain Rhino]

Both the Army and the Navy have been working for some time on GPS and laser terminal guidance for 5 in/155mm projectiles to address the accuracy problems you mention.

With that kind of range and automated loading systems, you can imagine some pretty wicked TOT set ups with a single weapon system firing a battery-equivalent fire mission. Hope they made barrel replacement easier, they are going to need it.

Interesting to see the new system still mounted on the M109 chassis. Wonder if that is for development purposes only or if the Army feels the M109 still fills the bill for mobility and reliability.

[LambSlave]

I wonder what accuracy is at that range with so many variables on that length/arc of a flight path.

These can be fired with the M1156 Precision Guidance Kit (screw in fuze with GPS guidance and control surfaces for in-flight corrections); so pretty damned accurate.

[JudgemAll]

South Africa pioneered the concept when they ran out of air support spares

[Scrambler Bob]

pinpoint accuracy at a range of 62 kilometers

= = =

pinpoint? very vague

62 km = about 39 miles. Dang, that IS a long ways.

[snoringbear]

“I wonder what accuracy is at that range with so many variables on that length/arc of a flight path. Some serious number crunching in there.”
*

It’s not a dumb projectile. It’s basically a smart bomb but instead of dropped from a plane it’s shot out of an arty tube.

[Spktyr]

70km and 100km are currently vaporware for this thing and relying on a projectile technology that we already decided not to buy for the Navy. The Russians will sell you one that ranges to 80km on the world arms market, today.

[archy]

That’s just an insane “reach out and touch someone.”

Well, maybe to an infantryman with a rifle. Some guys with 16-inchers throw a projectile the size of a Volkswagon something like 52 miles:

I wonder what accuracy is at that range with so many variables on that length/arc of a flight

We once worked out a 15-mile firing exercise for the U.S.S. New Jersey at 15 miles at right around a minute of angle. Of course their FDC [thankfully , not the ANGLICO guy calling for fire] has to take into account the Coriolis effect, as well as the Eötvös effect caused by the rotation of the Earth on it's axis, the projectile's leaving the denser atmosphere, the Earth continuing to rotate [hopefully!] and the projectile reentering *normal* artillery conditions. Winds, of course, can be blowing in any direction, or not at all, at different altitudes of the projectile's journey.

Even a relatively dumb ol' tank gunner knows that main gun rounds fired to the east always fly a little higher, and those fired to the west always impact just a tad low. On the Way! [Y'all call it *Shot, out!*]