Class Va and Class Vb push convoys manoeuvring model. Real time validation

In order to validate the push convoy manoeuvring models Class Va and Class Vb a first real time validation day was performed on August 30th. In general, the more important issues detected included: self-propulsion speed both ahead and astern, low stopping capacity, low swinging capacity and a low manoeuvrability without propeller action. A second day of real time validation was performed on November 6th after some model adaptations. This report describes in detail the real time validation process and the main remarks of the skipper to the model performance and the way in that these issues were treated. After the second validation day both models were considered validated.