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iGoApp

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Everything posted by iGoApp

  1. Version 1.2

    345 downloads

    The JRollon CRJ-200 Virtual Dispatch calculates various values required for your flight plan (distance between airports, fuel amount, weights, CG, V speeds, pitch trim, etc.). The application is developed for the JRollon CRJ-200 airplane (X-Plane) only. The application is created in Java and therefore can be used on any platform (Windows, Mac, Linux). You must have Java installed on your compter to run the application. Note to those on MACs: iMAC OS X does not support Java anymore and does not provide automatic update of Java. To run this application, you need to go to the Java website and download and install the latest update. If this application does not work on your computer (Mac, Windows, or Linux), your Java version is out of date. Go to the Java website and install the latest version! The zip file contains an exe file for Windows users, a jar file for those with Mac and Linux, and a brief manual (if you ever need one). If you have any comments about the application, you may write me at: software@igorland.com. Enjoy!
  2. Thanks! This code works and now I CAN get a Metar report. Much appreciated. I still cannot get just Temperature since it gives me the error: The type is not visible! Hm............
  3. Thank you so much for your help. Tried it, keep getting "Exception in thread "main" com.feldt.metar.exceptions.MetarException: Connection timed out: connect." import com.feldt.metar.Metar; import com.feldt.metar.MetarFtp; import com.feldt.metar.exceptions.MetarException; import com.feldt.metar.exceptions.MetarParseException;   public class GetMetar { public static void main(String[] args) throws MetarParseException, MetarException { String station = "KLAX"; MetarFtp metarFtp = MetarFtp.parse(station); Metar metar = Metar.parse(station, metarFtp.getObservation(), metarFtp.getObservationDateAsString());   if (metar != null) { System.out.println(metar.toString()); }   } }
  4. Hi, Andyrooc. When I try to create an object referring to a class, it gives an error "The type temperature is not visible." This is what I am trying to do: import com.feldt.metar.*; public class main { public static void main(String[] args) { Temperature temp = new Temperature(); String dep = temp.parseTemperature("KSEA"); } } Hm, what is wrong? Thanks.
  5. Hi, Andyrooc. Are you talking about this? http://jfall-javafx.googlecode.com/svn-history/r6/WeatherFX/src/com/feldt/metar/Metar.java I see only one class here (Metar), where the Temperature method "is not seen" when the jar is exported to the project in Eclipse. Do you have it working? Thank you so much for your help!
  6. Hi, all. If anyone is experienced in Java, can you help please? I am finishing a project (which is my first project, so I am just a beginner) and I would like to parse Metar data into my main class (actually, I need just temperature, but parsing the whole Metar report would be nice-to-have). I have found a code by Matthew Feldt, but cannot make it work (e.g., the Temperature method is not seen). Is there an easy and/or working solution? Thank you!
  7. Hi, jagipson. I think there is an error in your table: cell I7 in table DATAREF should be 0. Cheers,
  8. I never tried it! Always manually entered the limit using the reference table. Never mind then. Cheers for your work!
  9. 1) Yes, this is also how I did it. 2) CRJ Pilot Handbook 1.0.1. Landing distance -- p.23; Wet landing field length -- p. 24. But this is not really important. 3) It is hard to make perfect better, but in this case you may add the last thing -- Reduced Thrust Take-Off Setting, unless I miss it somewhere. :-) Great work! You should upload it to the org site, I think there is appetite for that. If I ever finish my java self-learning, I wanna try to do it in java as a pilot project. May be when I am retired and have a bit more time...
  10. If you can open my spreadsheet, you will see how I did it (you need to unhide the hidden spreadsheets). i also calculated the runway length based on the dry-wet condition. Getting these data (temperature and runway condition) from the metar may be tricky. If you get it as fixed width text, you could perhaps do the text to columns function and then use the appropriate column for the value determination. Do I make sense?
  11. For example, Vspeed correction at 2000 ft and 30 C is +2 (18000 kg). If V1 = 122, the corrected speed should be 124. Is this right? So, I was just asking whether your calculated speeds take that into account. Cheers.
  12. Jagipson, you beat me on that one! :-) Do you use speed correction based on temp and altitude? Also, do you estimate the runway length based on wet vs dry conditions? Also, in Main Calculations worksheet, I entered Fuel on board of 8000, and it shows me %MAC and Stab Trim for LW (actual) as #N/A. There may be some error in the formula. Otherwise, great work!
  13. Hello, everyone. Can you please peer review the Flight Plan table? Unfortunately, I cannot save it as a Google document (the first page gets corrupted and some formulas do not work), so it is only available in Excel. This is the link: www.igorland.com/flight/CRJ200_FP_v1.xlsx Thanks for your time. If you find it correct and useful, I could upload it to the x-plane.org site as well. Cheers.
  14. Thanks a lot, jagipson! This is exactly why I was looking for the arm values! I know the gender does not make difference for the pilots. I just use it for fun to load the plane and then calculate the total weights by zone. By the way, I went to PlaneMaker and still did not find the arm values there. Can you help locate it please? I will try to save it in Google docs when it is finished. I am like 60 per cent through it. Need to figure out the best way to make speed corrections based on T and altitude. I think I have the idea though... I will send it for a peer review. Cheers.
  15. OK. Something like that... http://www.igorland....p_igorland.xlsx jagipson, I used some of your formulas. I hope you won't mind -- they are just too good to be ignored. I just got to the point of calculating the indexes. I modified the original jagipson's table: 1) Inserted an option to select seats using a plane chart; 2) Modified the formula to calculate the Passengers' Index. As I mentioned before, the relationship is not perfectly linear, so in my table the index is calculated using a ratio (index point per lb) based on the values in the CRJ-200 manual; 3) The Fuel index is more complex. I inserted three median points between every two values, and then used an interpolation formula. The calculated index is more or less exact now. Please let me know if you notice a bug. Cheers,
  16. Thanks, jagipson. So if I understand it correctly, for example, Index for 3 passengers in Zone A is 4.9 only for an average passenger weighting 176 lb (in other words, index 4.9 is for total weight 528 lb). So, if I want to get the index for one man, one woman, and one child sitting in zone A (based on the revised standards), the index will be: (200+179+79 [forgot what the exact weight for a child acccording to FAA is])*0.009[index point per 1 lb based on the manual] = 4.1. Is this correct? Thank you if you find time to clarify. Best.
  17. Great table, jagipson! Very helpful when planning the flights. Especially when flying on VATSIM and every minute counts otherwise your arrival ATC will be closed by the time you get there. I wanted to modify the table a little bit to be able to actually select the seats and choose who sits there (man, woman or child), so that the Passenger Index would be calculated based on that. I can use the pax index formula that you use, however it is not perfectly linear and sometimes the index gets skewed (by .1 or so -- not really significant but still). So, if I understood the literature correctly, I should find arms for the fuselage stations, multiply them by the weight in that station = moment. Then I can find CG by dividing total moment by total weight. And so on. The problem is that I simply cannot find arm values or arm centroids for passenger zones for CRJ-200 on Internet. Unbelievable, spent four days googling them -- just not there. I would appreciate if someone can clarify or help me locate the arms for CRJ-200. Thank you!
  18. This is spectacular!!! Thanks a lot! If it was only possible to have other displays on iPad/iPhone as well!!!
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