Operations Research: Maritime Operational Research into Submarine Evaluation (MORSE) – 1990


Maritime Operational Research into Submarine Evaluation (MORSE) – 1990

To support the introduction and operations of the WALRUS class submarines in the Royal Netherlands Navy, which occurred on 25 April 1990, the computer model MORSE (Maritime Operational Research into Submarine Evaluation) was developed. The model can simulate the encounter between a Walrus class submarine and other subsurface and/or surface units. The model represents the phases of the encounter from initial search and detection, through classification, Target/Contact Motion Analysis and intercept to the actual launching of the weapon. The emphasis lies on the model of the Walrus. The Walrus has been modelled in full detail concerning platform characteristics as well as its sensor and weapon systems. 
To achieve maximum flexibility, the MORSE program is modular and built around an extensive database in which the various environments, platforms, sensors and weapon characteristics are stored. The model has already been used to conduct simulation runs to support the evaluation of the WALRUS class submarines. The model, validated with observations done during various evaluation exercises, is used to assess the effectiveness of various tactics or doctrines.

Walrus submarine

MORSE applications:

  • Investigation and Development of Search and Approach Tactics
  • Investigation of Target Motion Analysis (TMA) methods
  • Research on the effectiveness of new weapons, sonars, and other systems
  • Prediction program of detection and counter-detection ranges
Walrus submarine


MORSE performance displa
The MORSE performance display (fictive data)