Compressor supplying compressed air directly to the intake manifold. Channels for this were stretched along the outside of the fuselage. To ensure the engine cooling Mercedes on the right side of fuselage was attached to a small radiator brackets. Other changes included the installation of an exhaust manifold system, strengthening covers puller and installation of ramps for the lower machine-gun positions. R.15 early flight tests revealed that it was inert, so to improve maneuverability R.16, in addition to the two keels had added a third rudder. Despite the fact that the aircraft was ordered in 1916, the serial number has been changed to R.16/16 R.16/17, reflecting, perhaps, the shift in the budget of the program R.16 1917. R.16 was ready to receive the service in October 1918.