| Name | E-FOUR |
| Port of Registry | Nassau |
| Flag | Bahama |
| Vessel Type | ASD |
| Year of Build | 2012 |
| Class | Lloyds Register |
| Bollard Pull | 62,3 Tbp. |
| Owner | EMAR Offshore Services b.v. |
Propulsion System
| Main engine | 2x Caterpillar 3516C |
| Total power | 3728 kW (5226 BHP) |
| Thrusters | Kongsberg Maritime US 205 |
Main Dimensions
| Length overall | 28.67 m |
| Beam overall | 10.43 m |
| Depth at sides | 4.60 m |
| Draught aft | 4.80 m |
| Displacement | 531 Mtons |
| Gross Tonnage | 294 Mtons |
Deck Equipment
| Tow Winch Forward | DMT-211-H19, double drum |
| Tow Wires Fwd | 1 x Dyneema Ø48mm, L=120M, 1 x Strongline Ø80mm, L=90M |
| Towing hook aft | Mampaey 65 T |
| Deck crane | HS Marine AK 34 HE2 2.58T @ 9.21m |
| Capstan | Yes |
| Push bow | Rubber Bow Fender and Cylindrical Bow Fender |
Nautical and Communication Equipment
| GMDSS | A1 + A2 |
| Radar | JRC-NDC-1460 |
| VHF Radio Telephone | SAILOR 6222 |
| Handheld | 3x JOTRON TRON TR-20 |
| Navtex | FURUNO NX-700 |
| Echo Sounder | FURUNO LS-6100 / FURUNO FE-700 |
| GPS | FURUNO GP-150 |
| AIS | FURUNO FA-150 |
| Magnetic compass | Cassens + Plath |
| EPIRB | Jotron Tron 40S MKII |
Auxiliary Equipment
| Main Generator Sets | 2 x Caterpillar C4.4 |
| Capacity | 2 x 107 kVA, 50Hz, 230/400 V |
| Fuel separator | Westfalia OTC-2 |
Capacities
| Fuel oil | 72.30 M³ |
| Fresh Water | 14.90 m³ |
| Lubrication Oil | 9,00 m³ |
| Dirty oil | 3,10 m³ |
| Bilge Water | 5,10 m³ |
| Sewage | 2,20 m³ |
| Foam | 6,50 m³ |
| Dispersant | 4,70 m³ |
Performance
| Speed approx. | 13 knots |
| Bollard Pull | 62,3 Tbp. |
Accommodation
| Accomodation | 6 2x single cabins, 2x double cabins |
E-FOUR
General Arrangement