"The Devil's Backbone" wasn't that bomb too damn big?

The Condor Legion flew JU-52s and Heinkel 111s. Could they really heft something this big?.

The He-111P3 had external racks that could hold two SC 1800 (1800 kg) bombs or one SC 2500 Max that was nearly 4m long. That boy is around 1.5m tall and the part of the bomb that is sticking out is more than twice that, so yeah, could be done, but I’m not sure the SC 2500 was in service that early.

The Ju-52, not so likely. Interior bombload of 1500kg and I’m having trouble finding record of external bombracks.