Reading an account by Lt Spremberg - commander of 5th co (52nd Infantry Regiment) - an tank killing squad- who was heavily involved at Cambrai. He recounts his unit facing some 30 Mk IVs coming from the direction of Bapaume and being, to put it mildly, in some trouble when "Suddenly (at 4:30), behind us is heard a characteristic and well known din. We saw at the road bend toward Cambrai and awaited with some delight, two motor guns." He goes on to describe how in cooperation with the commander of the guns he set up an anti tank ambush.
Does anyone know what a German motor gun was? Were they a specialist anti tank capability? Where they armoured in any way? AND has any one got a photograph or drawing?
The motor guns refered to were most likely a battery of Ehrhardt or Daimler platform trucks mounting 7.7cm guns. These were the same BAK / Flak weapons discussed frequently in this forum. It is factual that a number of these batteries engaged this large tank assault, and I have their kill totals from this action on file (I'm not home at the moment).
... I suspect the "improvision" was applying an AA weapon for flat trajectory tactical support. Though we do know the Germans were preparing to meet the Allies' "Plan 1919" with large numbers of lorry-mounted field gun batteries. Photo evidence suggests the trucks were all of the 5 ton class with cab and windscreen removed. the FK then had a clear field of fire forward. Not all, but a good number of the batteries were armed with captured 75mm Belgian Krupp guns that had been held in artillerie parks for home defense.