Launching

In order to undertake out a traditional longitudinal-type launching analysis, you can select the Miscellaneous - Launching Calculations icon and ensure that all input data is complete and current. This calculation module does not cater for sideways launching or launching from a dry dock. One launching condition can be analyzed by the program at a time. Normally a user will be well aware of building berth and launch site limitations and hence the overall design of the vessel itself is unlikely to be effected by the results obtained from launching calculations. However the yard may need to anticipate and consider the provision of restraints during launching, for example, drag chains, and additional temporary internal structural supports in the bows in order to resist fore-poppet pressures when the stern begins to float.