[calex59]

Mobility and speed. Traditionally artillery pieces had to be towed, thus restricting its effective deployment in difficult terrain. The six-wheeled G6 changed the face of artillery because it is self-propelled, with the ability to reach speeds of 85km per hour on roads and 35 km per hour in off-road conditions. It can traverse terrain to a gradient of 40 degrees and cross trenches of up to one meters

Is this guy seriously saying this was the first self propelled artillery piece? Sure sounds like it, if he is he is full of sh** as a Christmas Turkey. Self propelled guns have been around since at least WWII. I know we had them when I was in the army 59-62, ours were all tracked vehicles at the time(except the useless Atomic Cannon which was around then and was wheeled)both 105 and 155 MM guns.

[mosesdapoet]

The 8” SP howie (tracked) was used in WWII Korea and Nam and had about the same rate of fire when really pushed and super accurate. Speed about 35mph.