The Ju 52/3mg5e was powered by a trio of closely
cowled 830 hp (619 kW) BMW 132T-2 9-cylinder air-cooled radial
engines. The two outboard engines were 'toed-out', or in other words,
were set at an angle to the main thrust line. This reduced the
considerable yaw if one of the wing engines was lost, by pulling the
aircraft away from the dead engine.
The nacelles housed the engine
oil tanks above the wing leading edge. Filler caps above them served
the oil (forward) and fuel (rear) tanks. The fuel was held in wing
tanks, positioned inboard of the engines. Exhaust gas from the
engines was collected by annular ducts and ejected below and to the
sides of each engine. These caused characteristic stains on the
fuselage and wings, but kept the filler caps and cockpit area clean.
The 3mg5e introduced exhaust de-icing.
(19a)