- Role: Training
- Dimentions: Wingspan: 15.58m, Length: 8.80m
- Engine: 1 x Gnome (80 hp)
- Crew: 2
- Number in service: 3 or 4
- Country of production: France
- Years in service: 1914-1918
This type of airplanes are believed to have been introduced in Greece in late 1914. They were used as training airplanes in the Naval Flying Corps, which since October 1914 was transferred in Palaio Faliro. Its design was that of the Henry Farman 20, the only difference being that the HF.22 was a hydroplane. They were probably at the Palaio Faliro training center in 1918, after Greece officially joined WWI.