PF-4800567 FOR DUMMIES

The 2 wing-mounted radial engines on the Ju 52/3m had 50 %-chord cowlings and in planform see (from higher than/underneath) gave the impression to be splayed outwards, getting mounted at an almost perpendicular angle to your tapered wing's sweptback leading edge (in the same style into the Mitsubishi G3M bomber and Limited Sunderland; the angled en