实体框架代码优先数据库初始化与关系

我正在做一个n-Teir项目，这个问题的重点是服务（Buisness逻辑）和数据层。我在数据层中有三个模型：Aircraft、AircraftType和AircraftLivery。现在我对如何用示例数据初始化数据库有了一个很好的想法，但我不确定如何将不同的类型关联起来。我将如何创建交付并将其与飞机或飞机类型的默认交付联系起来？如何将飞机类型与飞机联系起来？下面是当前生成的代码，但我还没有运行。我将如何实现最后一个类Sample Data？在这段代码中，您是否看到了其他可以采取不同做法的内容？

在数据层：

    public abstract class ModelBase
    {
        [Key]
        public int Id { get; set; }
        public string LastUpdateUser { get; set; }
        public DateTime LastUpdateDt { get; set; }
        public bool IsDeleted { get; set; }
    }
    public class Aircraft : ModelBase
    {
        public Guid SerialNumber { get; set; }
        public string Registration { get; set; }
        public byte[] Image { get; set; }
        [ForeignKey("Id")]
        public AircraftType Type { get; set; }
        [ForeignKey("Id")]
        public AircraftLivery Livery { get; set; }
    }
    public class AircraftType : ModelBase
    {
        public string Manufacture { get; set; }
        public string ICAO { get; set; } 
        public string Name { get; set; } 
        public bool IsTailDragger { get; set; }
        public bool RetractableGear { get; set; }
        public double StallSpeedFullFlaps { get; set; }
        public double StallSpeedClean { get; set; }
        public double CruiseSpeed { get; set; }
        public double MinimumDragVelocity { get; set; }
        public int LowerThrottleLimit { get; set; }
        public int MaximumMachSpeed { get; set; }

        public int Range { get; set; }
        public int Weight { get; set; }
        public int Cruise { get; set; }
        public int MaximumPassengers { get; set; }
        [ForeignKey("Id")]
        public ICollection<AircraftLivery> Liveries { get; set; }
        [ForeignKey("Id")]
        public AircraftLivery DefaultLivery { get; set; }
    }
    public class AircraftLivery : ModelBase
    {
        public byte[] Image { get; set; }
        public string Name { get; set; }
        [ForeignKey("Id")]
        public AircraftType AircraftType { get; set; }
        [ForeignKey("ID")]
        public ICollection<AircraftLivery> Aircrafts { get; set; }
        public string Author { get; set; }
    }
    public class SampleData : DropCreateDatabaseIfModelChanges<AirlineContext>
    {
        protected override void Seed(AirlineContext context)
        {
            var aircraft = new List<Aircraft>
            {
                //new Aircraft() {},
            };
            var aircraftTypes = new List<AircraftType>
            {
                //new AircraftType() {},
            };
            var aircraftLiveries = new List<AircraftLiveries>
            {
                //new AircraftLiveries() {},
            };
        }
    }

在役：

    public class Global : System.Web.HttpApplication
    {
        protected void Application_Start(object sender, EventArgs e)
        {
        Database.SetInitializer(new SampleData());
        }
    }

public class Aircraft : ModelBase
{
        public Guid SerialNumber { get; set; }
        public string Registration { get; set; }
        public byte[] Image { get; set; }
        //This is ForeignKey to AircraftType
        public int AircraftTypeId {get;set;}
        //This is ForeignKey to AircraftLivery
        public int AircraftLiveryId {get;set;}
        //Instead of Id use AircraftTypeId
        [ForeignKey("AircraftTypeId")]
        public AircraftType Type { get; set; }
        [ForeignKey("AircraftLiveryId")]
        public AircraftLivery Livery { get; set; }
}

public class Category
{
     [Key]
     public int Id{get;set;}
     public string Name {get;set;}
     public ICollection<SubCategory> SubCategories{get;set;}
}
public class SubCategory
{
     [Key]
     public int Id{get;set;}
     public string Name {get;set;}
     public int CategoryId {get;set;}
     [ForeignKey("CategoryId")]
     public Category Category {get;set;}
}