public static VesselEngineViewModel ToViewModel(this VesselEngine entity)
        {
            if (entity == null)
            {
                return(null);
            }

            VesselEngineViewModel model = new VesselEngineViewModel
            {
                Id                 = entity.Id,
                VesselId           = entity.VesselId,
                SystemModification = entity.SystemModification,
                EngineNumber       = entity.EngineNumber,
                Power              = entity.Power,
                Type               = entity.Type
            };

            return(model);
        }