M/S Ersai 4
| Route | - |
| IMO | 8611556 |
| Building year | 1989 / 1998 / 2008 |
| Building yard | North East Shipbuilders, Sunderland, UK (#3011) |
| Owner | Ersai Caspian Contractor LLC |
| Operator | Ersai |
| Length | 95,0 m |
| Breadth | 15,27 m |
| Draft | 3,61 m |
| GT | 4.101 / 5.023 / 4.459 |
| Machinery | 10 * Cummins NTA-855-G2 |
| Speed | 14 kn. |
| Number of passengers | 268 / 300 / 150 |
| Number of beds | 0 |
| Number of cars | 170 |
| Lanemetres | 580 |
| Port of registry | ? |
| Flag | Kazakhstan |
| Former names | Split Prvi (2004-2008) - S.E.M. Maritime Company Langeland (2004) - HH-Ferries Langeland (2003-2004) Langeland (2003) - Langeland-Kiel (2003) Anja 11 (2002-2003) Anja 11 (2002) - HH-Ferries Anja 11 (2000-2002) Anja 11 (1998-2000) - Easy-Line Easy I (1998) Mercandia I (1997-1998) Mercandia I (1997) - Litorina Line Mercandia I (1996) - KattegatBroen - Mercandia Rederierne I/S Mercandia I (1996) - SundBroen - Mercandia Rederierne I/S Mercandia I (1992-1996) - KattegatBroen - Mercandia Rederierne I/S Mercandia I (1989-1992) Superflex Kilo (1989) |
| Former owners | Saipem SPA (2010-2012)
Varisal Servicos (2008-2010) SEM Marina (2004-2008) K/S Østersjø-fergen (1998-2004) Mercandia Linierne I/S (1989-1998) |
| Sister ships | Besparmak, Corfu Spirit, Labitra Karina, Laut Teduh 2, Nikolaos, Rosmala, Superflex Trader, |
| Notes | Rebuild in 2008 to a workshop storage barge |
- M/F Anja 11
Photo: Michael Koefoed-Hansen (Helsingborg 18/8-2001)
- M/F Anja 11
Photo: Michael Koefoed-Hansen (Helsingborg 21/3-2002)
- M/F Langeland
Photo: Jörg Luke Sølyst (Bagenkop 2003)
- M/F Langeland
Photo: Jörg Luke Sølyst (Bagenkop 2003)
- M/F Langeland
Photo: Jörg Luke Sølyst (Bagenkop 2003)
- M/S Ersai 4
Photo: Saipem