![]() This setting is then recorded as "The Magnetic Declination of Record" or as it is sometimes called the “Station Declination” and the date this figure was set. If I reset VOR North to 0 then everything works exactly as expected as if the VOR was perfectly calibrated.įor Info in the "Real World" when a VOR is first installed, the VOR antenna is physically oriented to True North, this involved a TELS enginer climbing to the top of the mountain (or where ever the VOR was installed), with a set of screwdrivers and spanners/wrenches, then making a potentiometer adjustment to slave the navaid with Magnetic North. had a VOR MagVar stored in the database) then perhaps this would not have been an issue. If the VORs were referenced to True (i.e. It's almost like the VOR North value was being used as a fudge to make the procedures work with the previous incorrect MagVar? As the VOR's are apparently referenced to Mag North, perhaps the values for the VORs were not changed when the MagVar table was updated? I understand you very kindly updated the X-Plane Mag Var system (as well as all those lovely gateway airports!). ![]() To fly inbound on Radial 180 I'm using a course from 354 degrees, rather than 360 as one would on a perfectly calibrated VOR. Now what this means is the VOR "calibration" for want of a better description, is based on difference from Magnetic North, not True North. Note the Mag Compass value shown in the data output and directional gyro is 354.2, Almost exactly what the VOR North value for ROI is. Nill wind and aircraft stabilised on track for a few miles. Pictured is the default 172 tracking towards ROI VOR on Radial 180, so inbound 360. I don't see any problem at all with your Mag Vars and understand they're based on a 2020 epoch. I've been doing a bit more investigation and based on the attached composite screenshot the VOR North value is exactly the problem. Jan, Thanks for all your input on this matter. The magnetic runway track should be 080, yet the official ILS chart calls for 078. ![]() There are also some (accepted) discrepancies in procedure design in the real world, I guess. So (just an assumption) this would be the true direction of the magnetic north (the variation) at the time the VOR was INSTALLED (not todays!). The VOR NORTH value I am not familiar with, but I would assume that this is the TRUE direction that the 360 radial is pointing at (otherwise you would have to change this value again with every shift of the magnetic field). Now there might be a local distortion to the calculated field at EFRO, and X-Plane could not allow for that unless it moved to a tighter grid of var datatables, but since they are mostly "handfilled", this is not feasible. This calculator: has it at 11.2 East (and changing to more east fairly rapidly each year, so X-Plane will be more accurate in the next years.) Skyvector has a variation of 10.0 deg East. I output the MagVar and other parameters on the screen.įor EFRO I get 11.9 deg var East in X-Plane. Customers who purchased FlightCheck 7.91 on or after August 1, 2018, can use the License Link provided at the time of purchase, to access the upgrade, at no charge, the company says.To clarify things when I spot differences like that, this is what I do: ![]() An upgrade from existing FlightCheck perpetual to a current FlightCheck 7.92 subscription license is US$99. The annual subscription is US$199/year (MSRP) and the Perpetual license is US$399 (MSRP), available through the FlightCheck page on the Markzware website and through authorized resellers.Īn upgrade from an existing FlightCheck 7.75 perpetual license to the current FlightCheck 7.91 perpetual license, is US$199. FlightCheck requires macOS 10.6.8 or later, 4GB RAM min, 1024 x 768 display minimum, and an Internet connection to activate. Markzware, a publisher of DTP and PDF conversion and printing solutions, has announced FlightCheck 7.92 for Mac operating systems, explaining the software has added support to preflight Adobe CC 2019 (Creative Cloud) products, such as InDesign CC 2019, Photoshop CC 2019 and Illustrator CC 2019.Ī stand-alone preflight solution, FlightCheck is designed to help digital print shops, graphic designers and publishing professionals check PDF and non-PDF files for printing quality and accuracy before submitting them to be printed.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |