The Rs.II was originally produced with three 240 hp Maybach Mb.IV six-cylinder in-line engines embedded in the fuselage driving three pusher propellers via transmissions. After a few flights the powerplant number and arrangment were changed, four 240 hp Mb.IVs were paired in push-pull configuration between the wing and the top of the fuselage.
Span: 108 ft 11.1 in (33.20 m)
Length: 78 ft 4.2 in (23.88 m)
Height: 24 ft 11.2 in (7.60 m)
Wing area: 2,766 sq.ft (257 sq.m)
Weight empty: 15,653 lb (7,100 kg)
MTOW: 20,190 lb (9,158 kg)
Max speed: 80 mph (128 kmh)
Service ceiling: 9,842 ft (3,000 m)
Most likely the designations Rs.IIA and Rs.IIB, found in a number of sources, have been allotted (by?) after 1920 to distinguish the two versions."