Design Philosophy GeoRanger

Based on the extensive requirements of Geo Plus, we designed the shallow draught hydrographic survey vessel “Geo Ranger”, including seakeeping analysis, DP capability study, and tender documentations for the shipyard selection. After contract signing between Koninklijke Niestern Sander en Geo Plus, we also provided the complete naval architecture and construction design and engineering to the shipyard.

Geo Ranger can be considered as (one of) the best survey vessels in its class. Standards for a survey vessel get higher every year and project timeframes get shorter. This means a survey vessel has to offer the highest performance and flexibility as possible. The combination of an optimized hull shape, a strong DP2 capability, two high class Azimuth stern thrusters and two bow thrusters (Veth) results in a high workability up to 2,5 meter significant wave height and 4+ weeks offshore endurance.

The vessel uses energy in a sustainable way with respect for the environment. This means the vessel uses for example diesel/electric propulsion for low fuel consumption, heat recovery, LED lightning and bio-degradable oil.

Geo Ranger was launched at the Koninklijke Niestern Sander Shipyard in March 2020.

Main particulars
Length over all (excl. fenders)41.20m
Length over all (incl.. fenders)41.60m
Length between perpendiculars39.55m
Breadth moulded8.70m
Depth to main deck4.25m
Draught (design)2.25m
Draught (max.)2.40m
Air Draught 14.8m
Gross Tonnage499GT
Nett Tonnage150NT
Complement21pers
Service speed11kn
Propulsion
Installed power (4 diesel generator sets)1,440ekW
Propulsion2 × 400bkW
Bow thruster2 × 195bkW
Tank Capacity
Fuel oil (MGO)65m3
Fresh water45m3
Technical fresh water100m3
Equipment Capacity
Deck area65m2
Deck crane (SWL)1,790kg
A-frame (SWL)8,000kg

Find out more about the best survey vessel in its class on the website of GeoPlus

Picture (header) courtesy of Koninklijke Niestern Sander

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