Type 1 + 1 trainer 1 + 1 trainer 1 + 1 trainer
Engine 1 Mercedes-Simplex (Prototype 1 Anzani  (D-1181) 1 Siemens Sh 4
Dimensions Length  , height  ,  span  , wing area   , Length 6.00 m, height 2.20 m, span 9.00 m, wingarea 14.00 m2, aspect ratio 5.8
Weights Empty , loaded  , max. take off weight   Empty 355 kg, fuel 30 kg, oil 5 kg, crew 150 kg, flying weight 540 kg, wing loading 38.60 kg/m2
Performance Max.. speed  , cruising speed  , range , endurance  , service ceiling   , climb Max. speed at sea level 125 km/h, cruising speed at sea level 110 km/h, climb 3.30 m/sec (2-seater)., range 200 km, service ceiling 3500 m , required runway for start 45 m, for landing 35 m, landing speed 50 km/h
Type Werk.Nr Registration History
D-405
D-408
D-445
D-456
D-457
227 D-1181 With 1 Anzani engine. To P. Reimann, Köln, in Febr. 1928. Destroyed in a fire April 1928.
Following the success of the single-seat R.III, Walter Rieseler designed a two-seat version of the aircraft for Stahlwerk Mark AG in 1923, designated the Stahlwerk Mark R.IV.

The prototype of the aircraft bore the inscription "Rieseler IV 23". (37 kW). The aircraft received a small door on the right side of the fuselage, which facilitates the landing of the co-pilot. For training, dual control could be installed.

For serial production, it was planned to replace the Mercedes Simplex with a 60 hp Siemens-Halske Sh.4, but the engine was not yet ready. Instead, in 1924, a modification of the R.IVa aircraft was produced with a three-cylinder radial engine Haacke HFM 3 with a power of 50 hp, and a little later, the R.IVb appeared with a five-cylinder radial engine Mark St.M.5 with a power of 60 hp. (44 kW). One R.IVa, registration D-1181, was completed with a 55 hp six-cylinder Anzani engine.

The total number of built R.IV aircraft is not known, according to various sources, it ranges from 8 to 15 aircraft.