In 1877, the naval ships of the Ottoman Navy were disposed as follows:
Mediterranean Fleet
1st Fleet (Volos)
Mahmûdiye, Asar-i Şevket, Bursa, Resmo
2nd Fleet (Crete)
Azîziye, Mukaddeme-i Hayır, Iclaliye, Libnan, Muzaffer, Edirne
3rd Fleet (Preveza)
Orhâniye, Muîn-i Zafer, Asar-i Tevfik, Sinop
Bosporus Fleet
Mesudiye, Osmaniye, Feth-i Bülend, Sürur, İzzeddin, Kandiye, Talia, Istanbul
Constantinople
Avnillah, Necm-i Şevket, Selimiye, Hüdâvendigâr
Guard vessels
Fethiye (Büyükdere), Şadiye (Golden Horn), Mansûre (Smyrna)
Under repair at Tersâne-i Âmire
Tahir-i Bahri, Peyk-i Şevket, Kosova, Peyk-i Zafer, Ertuğrul, Hizber, Kandiye, Akadiye, Eser-i Nusret, İsmail, İskenderiye
In March 1877, the Ottoman Navy was structured as follows:
Black Sea Fleet (Ferik Bozcaadalı Hasan Hüsnü Pasha)
Black Sea Ironclad Squadron (Liva Mustafa Pasha)
Âsâr-ı Tevfik, Orhaniye, Âsâr-ı Şevket, Necm-i Şevket, Iclâliye, Feth-i Bülend, Muin-i Zafer, Avnillah
Black Sea Wooden Hulled Squadron (Liva Ahmed Pasha)
Hüdavendigâr, Mubir-i Sürur, Sinop, Muzaffer, Izmir, Edirne, Asır, Ismail, Mecidiye
Mediterranean Fleet (Ferik Giritli Hüseyin Pasha)
Mediterranean Ironclad Squadron (Milalay Faik Bey)
Mesudiye, Aziziye, Osmaniye, Mahmudiye, Mukaddeme-i Hayır
Mediterranean Wooden Hulled Squadron (Liva Hasan Pasha)
Selimiye, Mansure, Utarit, Eser-i Cedîd, Sehir, Taif, Fevaid, Talia
Bosporus Squadron
Fethiye, Izzeddin, Kandiye, Hanya, Medar-i Zafer, Âsâr-ı Nusret
Danube Squadron (Ferik Mehmet Arif Pasha)
Lütf-ü Celîl, Hıfz-ür Rahman, Hizber, Seyfi, Semendire, Feth-ül Islam, Böğürtlen, İşkodra, Podgoriçe, Akka, Varna, Şevket Nüma, Sultaniye, Mürvet-i Nusret, Mesir-i Bahri, Feyz-i Bahri, Serafeddin, Medar-i Tevfik, Kayseriye, Batum, Selânik, Mersin, Lütfiye, Pursut, Canik, Kılıç Ali
Ottoman Danube Steamship Company (İdare-i Nehriye)
Hüseyin, Nüzhet, Arkadi, Islahat, Rusçuk, Aziziye, Seyyar, Lom, Vidin, Niş, Ziştovi, Sofya, Seyyar
In 1877, Danube Squadron of the Ottoman Navy was disposed as follows:
April 27, 1877
Vidin
Varna, Ziştovi
Lom
Rusçuk
Rahova (present day: Oryahovo)
Podgoriçe
Niğbolu (present day: Nikopol)
İşkodra, Böğürtlen
Rusçuk (present day: Ruse)
Aziziye, Seyyar, Sofya, Islahat, Lom, Vidin, Niş
Tutrakan
Hizber, Şevket Nüma, Semendire, Arkadi
Silistre (present day: Silistra)
Kılıç Ali, Akka, Nüzhetiye, Şehbaz-i Bahri
July 10, 1877
Vidin
Varna, Ziştovi
Rahova
Podgoriçe
Niğb'