The Germans apparently do not resort to desultory fire against enemy
aircraft but "turn on the tap" by using every weapon capable of pointing
skywards, including heavy and light AA guns, machine guns, automatic
rifles, rifles, and pistols. These are fired to the limit whenever an
attempt is made to attack one of their columns. Bombing a German
column has often proved to be a dangerous and costly matter, as was
evidenced both in the battles of France and in the fighting in
Libya. This information, reported by a British air officer, emphasized
in addition the effectiveness of the German 20-mm AA cannon which is
distributed throughout all columns.
This air officer suggests that troops should not feel disappointed if, despite
their fire, an enemy plane gets away apparently unscathed. Few planes
vigorously attacked escape without some damage. Some are seriously
shot up. Not only must all serious damage be repaired, parts
replaced, and sometimes even entire engines replaced, but every
bullet hole must be patched, and a thorough, painstaking check made of the
aircraft to discover hidden spots which may have been hit. All this
takes time and requires labor, with the result that the aircraft is
grounded during the time needed for inspection, repair, and
subsequent re-check. All of these points should be
remembered. Consequently, the need for an all-out attempt to
inflict damage on attacking aircraft with the weapons available
should be of paramount importance.
This same British officer, when asked if there was any difficulty in
determining the nationality of columns of troops in the desert, said: "No. All
columns of troops in the desert look alike from the air, and both friend and
foe shoot at you; but their nationality is immediately apparent. If they
are our own, the fire is disturbing, and one fires the identification
signal; if they are German, the fire is terrifying, of unbelievable
volume and intensity, and leaves no doubt as to the identity of the column."