Esempio n. 1
0
        public PlaneFeedPluginPlaneInfoList GetPlanes(PlaneFeedPluginArgs args)
        {
            PlaneFeedPluginPlaneInfoList planes = new PlaneFeedPluginPlaneInfoList();
            // time to report planes
            ArrayList list = Decoder.GetPlanes();

            if (list.Count > 0)
            {
                // convert to plane info list
                foreach (ADSBInfo info in list)
                {
                    PlaneFeedPluginPlaneInfo plane = new PlaneFeedPluginPlaneInfo();
                    plane.Time = info.Timestamp;
                    plane.Hex  = info.ICAO24;
                    // mark call with "@" if option is enabled
                    plane.Call         = (Settings.MarkLocal) ? "@" + info.Call : info.Call;
                    plane.Lat          = info.Lat;
                    plane.Lon          = info.Lon;
                    plane.Alt          = info.Alt;
                    plane.Speed        = info.Speed;
                    plane.Track        = info.Heading;
                    plane.Reg          = "[unknown]";
                    plane.Type         = "[unknown]";
                    plane.Manufacturer = "[unknown]";
                    plane.Model        = "[unknown]";
                    plane.Category     = 0;
                    planes.Add(plane);
                }
                // save raw data to file if enabled
                if (Settings.SaveToFile)
                {
                    JavaScriptSerializer js = new JavaScriptSerializer();
                    string json             = js.Serialize(planes);
                    using (StreamWriter sw = new StreamWriter(args.TmpDirectory + Path.DirectorySeparatorChar + this.GetType().Name + "_" + DateTime.UtcNow.ToString("yyyy-MM-dd HH_mm_ss") + ".json"))
                    {
                        sw.WriteLine(json);
                    }
                }
            }
            Console.WriteLine("[" + this.GetType().Name + "]: Returning " + planes.Count + " planes");
            return(planes);
        }
Esempio n. 2
0
        public PlaneFeedPluginPlaneInfoList GetPlanes(PlaneFeedPluginArgs args)
        {
            // intialize variables
            VarConverter VC = new VarConverter();

            VC.AddVar("APPDIR", args.AppDirectory);
            VC.AddVar("DATADIR", args.AppDataDirectory);
            VC.AddVar("LOGDIR", args.LogDirectory);
            VC.AddVar("DATABASEDIR", args.DatabaseDirectory);
            VC.AddVar("MINLAT", args.MinLat);
            VC.AddVar("MAXLAT", args.MaxLat);
            VC.AddVar("MINLON", args.MinLon);
            VC.AddVar("MAXLON", args.MaxLon);
            VC.AddVar("MINALTM", args.MinAlt);
            VC.AddVar("MAXALTM", args.MaxAlt);
            VC.AddVar("MINALTFT", (int)UnitConverter.m_ft((double)args.MinAlt));
            VC.AddVar("MAXALTFT", (int)UnitConverter.m_ft((double)args.MaxAlt));
            // initialize plane info list
            PlaneFeedPluginPlaneInfoList planes = new PlaneFeedPluginPlaneInfoList();
            string json = "";
            // calculate url and get json
            String url = VC.ReplaceAllVars(Settings.URL);

            Console.WriteLine("[" + this.GetType().Name + "]: Creating web request: " + url);
            // this will only run on .NET 4.0 if you have installed .NET 4.5 or later frameworks on your machine!
            //            ServicePointManager.SecurityProtocol = (SecurityProtocolType)3072;
            //            HttpWebRequest webrequest = (HttpWebRequest)HttpWebRequest.Create(url);
            //            webrequest.Timeout = Settings.Timeout * 1000;
            //            webrequest.UserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:73.0) Gecko/20100101 Firefox/73.0";
            //            webrequest.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8";
            //            Console.WriteLine("[" + this.GetType().Name + "]: Getting web response");
            //            HttpWebResponse webresponse = (HttpWebResponse)webrequest.GetResponse();
            //            Console.WriteLine("[" + this.GetType().Name + "]: Reading stream");
            //            using (StreamReader sr = new StreamReader(webresponse.GetResponseStream()))
            //           {
            //                json = sr.ReadToEnd();
            //            }
            json = OSNTlsClient.DownloadFile(url, Settings.Timeout * 1000);
            // save raw data to file if enabled
            if (Settings.SaveToFile)
            {
                using (StreamWriter sw = new StreamWriter(args.TmpDirectory + Path.DirectorySeparatorChar + this.GetType().Name + "_" + DateTime.UtcNow.ToString("yyyy-MM-dd HH_mm_ss") + ".json"))
                {
                    sw.WriteLine(json);
                }
            }
            Console.WriteLine("[" + this.GetType().Name + "]: Analyzing data");
            //            JavaScriptSerializer js = new JavaScriptSerializer();
            //            dynamic root = js.Deserialize<dynamic>(json);
            dynamic root = JsonConvert.DeserializeObject(json);

            try
            {
                // analyze json string for planes data
                // get the planes position list
                var aclist = root["states"];
                foreach (var ac in aclist)
                {
                    try
                    {
                        // different handling of reading JSON between Windows (Array) & Linux (ArrayList)
                        // access to data values itself is the same
                        int len = 0;
                        len = ac.Count;
                        // skip if too few fields in record
                        if (len < 17)
                        {
                            continue;
                        }
                        PlaneFeedPluginPlaneInfo plane = new PlaneFeedPluginPlaneInfo();
                        // get hex first
                        plane.Hex = ReadPropertyString(ac, 0).ToUpper();
                        // get callsign
                        plane.Call = ReadPropertyString(ac, 1);
                        // get position
                        plane.Lon = ReadPropertyDouble(ac, 5);
                        plane.Lat = ReadPropertyDouble(ac, 6);
                        // get altitude (provided in m --> convert to ft)
                        plane.Alt = UnitConverter.m_ft(ReadPropertyDouble(ac, 13));
                        // get track
                        plane.Track = ReadPropertyDouble(ac, 10);
                        // get speed (provided in m/s --> convert to kts)
                        plane.Speed = UnitConverter.ms_kts(ReadPropertyDouble(ac, 9));
                        // registration is not provided
                        plane.Reg = "";
                        // get position timestamp in sec
                        int l = ReadPropertyInt(ac, 3);
                        if (l != int.MinValue)
                        {
                            DateTime timestamp = new System.DateTime(1970, 1, 1, 0, 0, 0, 0);
                            timestamp  = timestamp.AddSeconds(l);
                            plane.Time = timestamp;
                        }
                        else
                        {
                            // skip plane if no valid timestamp found
                            continue;
                        }
                        // get type info
                        plane.Type = ReadPropertyString(ac, 5);
                        planes.Add(plane);
                    }
                    catch (Exception ex)
                    {
                        Console.WriteLine("[" + System.Reflection.MethodBase.GetCurrentMethod().Name + "]" + ex.Message);
                    }
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine("[" + System.Reflection.MethodBase.GetCurrentMethod().Name + "]" + ex.Message);
            }
            Console.WriteLine("[" + this.GetType().Name + "]: Returning " + planes.Count + " planes");
            return(planes);
        }
Esempio n. 3
0
        public PlaneFeedPluginPlaneInfoList GetPlanes(PlaneFeedPluginArgs args)
        {
            // intialize variables
            VarConverter VC = new VarConverter();

            VC.AddVar("APPDIR", args.AppDirectory);
            VC.AddVar("DATADIR", args.AppDataDirectory);
            VC.AddVar("LOGDIR", args.LogDirectory);
            VC.AddVar("DATABASEDIR", args.DatabaseDirectory);
            VC.AddVar("MINLAT", args.MinLat);
            VC.AddVar("MAXLAT", args.MaxLat);
            VC.AddVar("MINLON", args.MinLon);
            VC.AddVar("MAXLON", args.MaxLon);
            VC.AddVar("MINALTM", args.MinAlt);
            VC.AddVar("MAXALTM", args.MaxAlt);
            VC.AddVar("MINALTFT", (int)UnitConverter.m_ft((double)args.MinAlt));
            VC.AddVar("MAXALTFT", (int)UnitConverter.m_ft((double)args.MaxAlt));
            // initialize plane info list
            PlaneFeedPluginPlaneInfoList planes = new PlaneFeedPluginPlaneInfoList();
            string json = "";
            // calculate url and get json
            String url = VC.ReplaceAllVars(Settings.URL);

            Console.WriteLine("[" + this.GetType().Name + "]: Creating web request: " + url);
            HttpWebRequest webrequest = (HttpWebRequest)HttpWebRequest.Create(url);

            webrequest.Timeout   = Settings.Timeout * 1000;
            webrequest.UserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:73.0) Gecko/20100101 Firefox/73.0";
            Console.WriteLine("[" + this.GetType().Name + "]: Getting web response");
            HttpWebResponse webresponse = (HttpWebResponse)webrequest.GetResponse();

            Console.WriteLine("[" + this.GetType().Name + "]: Reading stream");
            using (StreamReader sr = new StreamReader(webresponse.GetResponseStream()))
            {
                json = sr.ReadToEnd();
            }
            // save raw data to file if enabled
            if (Settings.SaveToFile)
            {
                using (StreamWriter sw = new StreamWriter(args.TmpDirectory + Path.DirectorySeparatorChar + this.GetType().Name + "_" + DateTime.UtcNow.ToString("yyyy-MM-dd HH_mm_ss") + ".json"))
                {
                    sw.WriteLine(json);
                }
            }
            Console.WriteLine("[" + this.GetType().Name + "]: Analyzing data");
            try
            {
                Console.WriteLine("[" + this.GetType().Name + "]: Deserializing data from JSON");

                //                JavaScriptSerializer js = new JavaScriptSerializer();
                //                dynamic root = js.Deserialize<dynamic>(json);
                dynamic root = JsonConvert.DeserializeObject(json);
                Console.WriteLine("[" + this.GetType().Name + "]: Created object from JSON is " + root.GetType().ToString());
                // analyze json string for planes data
                // get the planes position list
                Console.WriteLine("[" + this.GetType().Name + "]: Getting root of planes list");
                var aclist = root["planes"];
                Console.WriteLine("[" + this.GetType().Name + "]: Created root object is " + aclist.GetType().ToString());
                foreach (var ac in aclist)
                {
                    try
                    {
                        // different handling of reading JSON between Windows (Array) & Linux (ArrayList)
                        // access to data values itself is the same
                        int len = 0;
                        len = ac.Value.Count;
                        // skip if too few fields in record
                        if (len < 13)
                        {
                            continue;
                        }
                        PlaneFeedPluginPlaneInfo plane = new PlaneFeedPluginPlaneInfo();
                        // get hex first
                        plane.Hex = ac.Name.Trim().Replace("\"", "");
                        // get position
                        plane.Lat = ReadPropertyDouble(ac, 4);
                        plane.Lon = ReadPropertyDouble(ac, 5);
                        // get altitude
                        plane.Alt = ReadPropertyDouble(ac, 6);
                        // get callsign
                        plane.Call = ReadPropertyString(ac, 5);
                        // get registration
                        plane.Reg = ReadPropertyString(ac, 2);
                        // get track
                        plane.Track = ReadPropertyDouble(ac, 7);
                        // get speed
                        plane.Speed = ReadPropertyDouble(ac, 8);
                        // get position timestamp
                        long l = ReadPropertyLong(ac, 9);
                        if (l != long.MinValue)
                        {
                            DateTime timestamp = new System.DateTime(1970, 1, 1, 0, 0, 0, 0);
                            timestamp  = timestamp.AddSeconds(l);
                            plane.Time = timestamp;
                        }
                        else
                        {
                            // skip plane if no valid timestamp found
                            continue;
                        }
                        // get type info
                        plane.Type = ReadPropertyString(ac, 0);
                        planes.Add(plane);
                    }
                    catch (Exception ex)
                    {
                        Console.WriteLine("[" + this.GetType().Name + "]: " + ex.Message);
                    }
                }
            }
            catch (Exception ex)
            {
                string filename = args.TmpDirectory + Path.DirectorySeparatorChar + this.GetType().Name + "_" + DateTime.UtcNow.ToString("yyyy-MM-dd HH_mm_ss") + ".json";
                Console.WriteLine("[" + this.GetType().Name + "]: " + ex.Message + "\n\nJSON response saved as: " + filename);
                // save the JSON file
                try
                {
                    using (StreamWriter sw = new StreamWriter(filename))
                    {
                        sw.WriteLine(json);
                    }
                }
                catch
                {
                    // do nothing if saving fails
                }
                // forward exception to parent thread
                throw new Exception(ex.Message, ex.InnerException);
            }
            Console.WriteLine("[" + this.GetType().Name + "]: Returning " + planes.Count + " planes");
            return(planes);
        }
Esempio n. 4
0
        public PlaneFeedPluginPlaneInfoList GetPlanes(PlaneFeedPluginArgs args)
        {
            // intialize variables
            VarConverter VC = new VarConverter();

            VC.AddVar("APPDIR", args.AppDirectory);
            VC.AddVar("DATADIR", args.AppDataDirectory);
            VC.AddVar("LOGDIR", args.LogDirectory);
            VC.AddVar("DATABASEDIR", args.DatabaseDirectory);
            VC.AddVar("MINLAT", args.MinLat);
            VC.AddVar("MAXLAT", args.MaxLat);
            VC.AddVar("MINLON", args.MinLon);
            VC.AddVar("MAXLON", args.MaxLon);
            VC.AddVar("MINALTM", args.MinAlt);
            VC.AddVar("MAXALTM", args.MaxAlt);
            VC.AddVar("MINALTFT", (int)UnitConverter.m_ft((double)args.MinAlt));
            VC.AddVar("MAXALTFT", (int)UnitConverter.m_ft((double)args.MaxAlt));
            // initialize plane info list
            PlaneFeedPluginPlaneInfoList planes = new PlaneFeedPluginPlaneInfoList();
            string json = "";
            // calculate url and get json
            String url = VC.ReplaceAllVars(Settings.URL);

            Console.WriteLine("[" + this.GetType().Name + "]: Creating web request: " + url);
            HttpWebRequest webrequest = (HttpWebRequest)HttpWebRequest.Create(url);

            webrequest.Referer   = "http://www.radarbox24.com/";
            webrequest.Timeout   = Settings.Timeout * 1000;
            webrequest.UserAgent = "Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130807 Firefox/17.0";
            Console.WriteLine("[" + this.GetType().Name + "]: Getting web response");
            HttpWebResponse webresponse = (HttpWebResponse)webrequest.GetResponse();

            Console.WriteLine("[" + this.GetType().Name + "]: Reading stream");
            using (StreamReader sr = new StreamReader(webresponse.GetResponseStream()))
            {
                json = sr.ReadToEnd();
            }
            // save raw data to file if enabled
            if (Settings.SaveToFile)
            {
                using (StreamWriter sw = new StreamWriter(args.TmpDirectory + Path.DirectorySeparatorChar + this.GetType().Name + "_" + DateTime.UtcNow.ToString("yyyy-MM-dd HH_mm_ss") + ".json"))
                {
                    sw.WriteLine(json);
                }
            }
            Console.WriteLine("[" + this.GetType().Name + "]: Analyzing data");
            JavaScriptSerializer js = new JavaScriptSerializer();
            dynamic root            = js.Deserialize <dynamic>(json);

            try
            {
                // analyze json string for planes data
                // get the planes position list
                var aclist = root[0];
                foreach (var ac in aclist)
                {
                    try
                    {
                        // different handling of reading JSON between Windows (Array) & Linux (ArrayList)
                        // access to data values itself is the same
                        int len = 0;
                        if (ac.Value.GetType() == typeof(ArrayList))
                        {
                            len = ac.Value.Count;
                        }
                        else if (ac.Value.GetType() == typeof(Object[]))
                        {
                            len = ac.Value.Length;
                        }
                        // skip if too few fields in record
                        if (len < 14)
                        {
                            continue;
                        }
                        PlaneFeedPluginPlaneInfo plane = new PlaneFeedPluginPlaneInfo();
                        // get hex first
                        // Radarbox24 does not provide a HEX info
                        // leave it empty and let it fill by Reg in planefeed main thread
                        plane.Hex = "";
                        // get position
                        plane.Lat = ReadPropertyDouble(ac, 1);
                        plane.Lon = ReadPropertyDouble(ac, 2);
                        // get altitude
                        plane.Alt = ReadPropertyDouble(ac, 4);
                        // get callsign
                        plane.Call = ReadPropertyString(ac, 0);
                        // get registration
                        plane.Reg = ReadPropertyString(ac, 9);
                        // get track
                        plane.Track = ReadPropertyDouble(ac, 7);
                        // get speed
                        plane.Speed = ReadPropertyDouble(ac, 6);
                        // get position timestamp in msec
                        long l = ReadPropertyLong(ac, 3);
                        if (l != long.MinValue)
                        {
                            DateTime timestamp = new System.DateTime(1970, 1, 1, 0, 0, 0, 0);
                            timestamp  = timestamp.AddMilliseconds(l);
                            plane.Time = timestamp;
                        }
                        else
                        {
                            // skip plane if no valid timestamp found
                            continue;
                        }
                        // get type info
                        plane.Type = ReadPropertyString(ac, 5);
                        planes.Add(plane);
                    }
                    catch (Exception ex)
                    {
                        Console.WriteLine("[" + System.Reflection.MethodBase.GetCurrentMethod().Name + "]" + ex.Message);
                    }
                }
            }
            catch (Exception ex)
            {
                // do nothing if property is not found
            }
            Console.WriteLine("[" + this.GetType().Name + "]: Returning " + planes.Count + " planes");
            return(planes);
        }
Esempio n. 5
0
        public PlaneFeedPluginPlaneInfoList GetPlanes(PlaneFeedPluginArgs args)
        {
            // intialize variables
            VarConverter VC = new VarConverter();

            VC.AddVar("APPDIR", args.AppDirectory);
            VC.AddVar("DATADIR", args.AppDataDirectory);
            VC.AddVar("LOGDIR", args.LogDirectory);
            VC.AddVar("DATABASEDIR", args.DatabaseDirectory);
            VC.AddVar("MINLAT", args.MinLat);
            VC.AddVar("MAXLAT", args.MaxLat);
            VC.AddVar("MINLON", args.MinLon);
            VC.AddVar("MAXLON", args.MaxLon);
            VC.AddVar("MINALTM", args.MinAlt);
            VC.AddVar("MAXALTM", args.MaxAlt);
            VC.AddVar("MINALTFT", (int)UnitConverter.m_ft((double)args.MinAlt));
            VC.AddVar("MAXALTFT", (int)UnitConverter.m_ft((double)args.MaxAlt));

            // initialize plane info list
            PlaneFeedPluginPlaneInfoList planes = new PlaneFeedPluginPlaneInfoList();
            string json = "";
            // calculate url and get json
            String url = VC.ReplaceAllVars(Settings.URL);

            Console.WriteLine("[" + this.GetType().Name + "]: Creating web request: " + url);
            //            HttpWebRequest webrequest = (HttpWebRequest)HttpWebRequest.Create(url);
            //            webrequest.Referer = "http://www.vrs-world.com/";
            //            webrequest.Timeout = Settings.Timeout * 1000;
            //            webrequest.UserAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64; rv:37.0) Gecko/20100101 Firefox/37.0";
            //            webrequest.Accept = "application/json, text/javascript, */*;q=0.01";
            //            webrequest.AutomaticDecompression = System.Net.DecompressionMethods.Deflate | System.Net.DecompressionMethods.GZip;
            //            webrequest.Headers.Add("api-auth:" + APIKey);
            //            Console.WriteLine("[" + this.GetType().Name + "]: Getting web response");
            //            HttpWebResponse webresponse = (HttpWebResponse)webrequest.GetResponse();
            //            Console.WriteLine("[" + this.GetType().Name + "]: Reading stream");
            //
            //            using (StreamReader sr = new StreamReader(webresponse.GetResponseStream()))
            //            {
            //                json = sr.ReadToEnd();
            //            }
            //           */
            json = VRSTlsClient.DownloadFile(url, Settings.Timeout * 1000, APIKey);
            // save raw data to file if enabled
            if (Settings.SaveToFile)
            {
                using (StreamWriter sw = new StreamWriter(args.TmpDirectory + Path.DirectorySeparatorChar + this.GetType().Name + "_" + DateTime.UtcNow.ToString("yyyy-MM-dd HH_mm_ss") + ".json"))
                {
                    sw.WriteLine(json);
                }
            }
            Console.WriteLine("[" + this.GetType().Name + "]: Analyzing data");
            //            JavaScriptSerializer js = new JavaScriptSerializer();
            //            dynamic root = js.Deserialize<dynamic>(json);
            dynamic root = JsonConvert.DeserializeObject(json);
            // 2017-07-23: workaround for "jumping planes" due to incorrect time stamps
            // try to get the server time to adjust the time stamps in plane positions
            // --> compare server time with local time and calculate offset
            // default offset is 0
            long toffset = 0;

            try
            {
                // get local time of request in milliseconds
                DateTime lt    = DateTime.UtcNow;
                long     ltime = (long)(lt - new DateTime(1970, 1, 1)).TotalMilliseconds;
                // get server time in milliseconds
                long     stime = ReadPropertyLong(root, "stm");
                DateTime sti   = new System.DateTime(1970, 1, 1, 0, 0, 0, 0).AddMilliseconds(stime);
                // calculate offset in milliseconds
                toffset = ltime - stime;
                // check value
                string message = "Server timestamp difference (server <> local): " + sti.ToString("yyyy-MM-dd HH:mm:ss,fffZ") + " <> " + lt.ToString("yyyy-MM-dd HH:mm:ss,fffZ");
                // server time is more than 10.000 ms in the future --> keep offset for correction and log an error message
                // else --> set offset to 0 to work with real timestamps of entries without correction
                if (toffset <= -10000)
                {
                    message += " --> timestamp correction applied!";
                    //                    Log.WriteMessage(message);
                }
                else
                {
                    // clear offset
                    toffset = 0;
                }
                // analyze json string for planes data
                // get the planes position list
                var aclist = root["acList"];
                foreach (var ac in aclist)
                {
                    try
                    {
                        PlaneFeedPluginPlaneInfo plane = new PlaneFeedPluginPlaneInfo();
                        // get hex first
                        plane.Hex = ReadPropertyString(ac, "Icao").Trim().Replace("\"", "");
                        // get position
                        plane.Lat = ReadPropertyDouble(ac, "Lat");
                        plane.Lon = ReadPropertyDouble(ac, "Long");
                        // get altitude
                        // 2017-07-23: take "GAlt" (corrected altitude by air pressure) rather than "Alt"
                        plane.Alt = ReadPropertyInt(ac, "GAlt");
                        // get callsign
                        plane.Call = ReadPropertyString(ac, "Call");
                        // get registration
                        plane.Reg = ReadPropertyString(ac, "Reg");
                        // get track
                        plane.Track = ReadPropertyInt(ac, "Trak");
                        // get speed
                        plane.Speed = ReadPropertyInt(ac, "Spd");
                        // get position timestamp
                        // CAUTION!! time is UNIX time in milliseconds
                        long l = ReadPropertyLong(ac, "PosTime");
                        if (l != long.MinValue)
                        {
                            // 2017-07-23: correct timestamp with offset
                            l = l + toffset;
                            DateTime timestamp = new System.DateTime(1970, 1, 1, 0, 0, 0, 0);
                            timestamp  = timestamp.AddMilliseconds(l);
                            plane.Time = timestamp;
                        }
                        else
                        {
                            // skip plane if no valid timestamp found
                            continue;
                        }
                        // get type info
                        plane.Type = ReadPropertyString(ac, "Type");
                        // get extended plane type info
                        plane.Manufacturer = ReadPropertyString(ac, "Man");
                        plane.Model        = ReadPropertyString(ac, "Mdl");
                        long cat = ReadPropertyLong(ac, "WTC");
                        switch (cat)
                        {
                        case 1: plane.Category = 1; break;

                        case 2: plane.Category = 2; break;

                        case 3: plane.Category = 3; break;

                        case 4: plane.Category = 4; break;

                        default: plane.Category = 0; break;
                        }
                        // do correction of A380 as "SuperHeavy" is not supported
                        if (plane.Type == "A388")
                        {
                            plane.Category = 4;
                        }
                        // get country
                        plane.Country = ReadPropertyString(ac, "Cou");
                        // get departure airport
                        plane.From = ReadPropertyString(ac, "From");
                        // get destination airport
                        plane.To = ReadPropertyString(ac, "To");
                        // get vertical speed
                        plane.VSpeed = ReadPropertyInt(ac, "Vsi");
                        // add plane to list
                        planes.Add(plane);
                    }
                    catch (Exception ex)
                    {
                        Console.WriteLine("[" + System.Reflection.MethodBase.GetCurrentMethod().Name + "]" + ex.Message);
                    }
                }
            }
            catch (Exception ex)
            {
                // do nothing if property is not found
            }
            Console.WriteLine("[" + this.GetType().Name + "]: Returning " + planes.Count + " planes");
            return(planes);
        }