The Osprey 55 class , is a class of seven patrol boats of the navies of Morocco , Greece and Senegal . The Greek Navy also uses six further developed boats, two Osprey HSY-55 and four Osprey HSY-56A , which were built at the Elefsis Shipyard .
↑ Anthony H. Cordesman, Aram Nerguizian: The North African Military Balance: Force Developments in the Maghreb , Center for Strategic and International Studies in 2009, ISBN 9780892065523 , page 29