Since there was so little time to perfect this installation, as a compromise, a French "Ratier" VP airscrew was fitted to the Comets' "R" engines, which utilised a simple air-filled bladder for a once-per-flight automatic pitch change.
To accommodate the limited time available, a French "Ratier" VP airscrew was retrofitted to the Comets' "R" engines. This setup utilized a simple air-filled bladder for an automatic pitch adjustment that happened only once per flight.