PZL-Świdnik's parent company, AgustaWestland chose to use the SW-4 as the basis for an optionally manned rotorcraft, the PZL-Świdnik SW-4 Solo. In 2011, development of an optionally-manned demonstrator began. The SW-4 Solo was first was shown at the MSPO 2012 in Poland as "SW-4 Solo" RUAS/OPH platform (Rotorcraft Unmanned Air System/Optionally Piloted Helicopter). In 2013, AgustaWestland was given a Royal Navy contract for the SW-4 Solo's development as part of the UK's RWUAS (Rotary Wing Unmanned Air System) Capability Concept Demonstrator (CCD) programme. Development of the SW-4 Solo is also being supported by the Italian Ministry of Defence's Directorate for Air Armaments under the Italian National Military Research Plan. By September 2015, the SW-4 Solo had performed a total of 26 demonstration flights, which included simulated shipboard integration tests. In November 2015, AgustaWestland stated that the SW-4 Solo was "ready for sale".