The Hellenic Air Force (HAF; Greek: Πολεμική Αεροπορία, Polemikí Aeroporía, literally "War Aviation", sometimes abbreviated as ΠΑ) is the air force of Greece with Hellenic being the synonym for Greek in the Greek language. Under the Kingdom of Greece from 1935 to 1973, it was known as the Royal Hellenic Air Force (RHAF) (Greek: Ἑλληνικὴ Βασιλικὴ Ἀεροπορία, Ellinikí Vasilikí Aeroporía).
Ἑλληνικὴ Βασιλικὴ Ἀεροπορία
No help to the OP but a brief excerpt from Wiki.