TheAirline.Models.Airliners.Airliner.Airliner C# (CSharp) Method

        private Airliner(SerializationInfo info, StreamingContext ctxt)
            : base(info, ctxt)
        {
            Classes.RemoveAll(c => c == null);

            var doubleClasses =
                new List<AirlinerClass.ClassType>(
                    Classes.Where(c => Classes.Count(cc => cc.Type == c.Type) > 1).Select(c => c.Type));

            foreach (var doubleClassType in doubleClasses)
            {
                var dClass = Classes.Last(c => c.Type == doubleClassType);
                Classes.Remove(dClass);
            }

            if (Version == 1)
                EngineType = null;
            if (Version < 3)
                FlownHours = new TimeSpan();
            if (Version < 4)
                Status = StatusTypes.Normal;
            if (Version < 5)
            {
                Owner = Airline;
            }
        }