The Royal Navy continued development of rigid airships until the end of the war. Eight rigid airships had been completed by the armistice, (No. 9r, four 23 Class, two R23X Class and one R31 Class), although several more were in an advanced state of completion by the war's end.Patrick Abbott and Nick Walmsley, British Airships in Pictures: An Illustrated History, House of Lochar 1998, (pp. 59–69) Both France and Italy continued to use airships throughout the war. France preferred the non-rigid type, whereas Italy flew 49 semi-rigid airships in both the scouting and bombing roles.Ventry & Koesnik (1982), p. 97.
The Royal Navy continued development of rigid airships until the end of the war. Eight rigid airships had been completed by the armistice, (No. 9r, four 23 Class, two R23X Class and one R31 Class), although several more were in an advanced state of completion by the war's end.Patrick Abbott and Nick Walmsley, British Airships in Pictures An Illustrated History, House of Lochar 1998, (pp. 59–69) Both France and It:aly continued to use airships throughout the war. France preferred the non-rigid type, whereas Italy flew 49 semi-rigid airships in both the scouting and bombing roles.Ventry & Koesnik (1982), p. 97.