Loading Airspace to Flymaster

This information is modified from instructions provided by Jugdeep Agarwaal who runs the NorCal XCLeague and distributes Flymaster instruments in the USA.

Most of the other categories are unlikely to shown on the charts are airspaces, so be aware that they might not show up on your instrument. If in doubt check any NOTAMS for restrictions.

What I selected for my airspace includes: Class A, B, C, D, prohibited, restricted, danger, CTR, wave window, glider prohibited and other. Basically all of them.

Please note that the http://www.maddyhome.com/ctr/ website seems to be no longer active. See the post Creating an Airspace File to create one manually.

How to load airspace onto Flymaster Instruments


  1. Once you have downloaded the airspace file to your computer, change the file extension for the airspace file from .bas to .txt.
  2. Open up the Flymaster Designer application.
  3. Under the Tools drop down menu select airspaces.
  4. There press the "open file" button and select the airspace file that you recently renamed to a .txt
  5. Once the file has been opened by the application, you can click on the arrow on the left hand side. This will allow you see all of the airspaces in your downloaded file. You can allow all of them to be uploaded or you can deselect some of them if you do not want all of them uploaded to your instrument.
  6. Pressing the upload button will transfer the files to your instrument.
  7. If you want to change what is on your instrument, uploading a new file will over-write the previous file.

How to set up the triggers onto Flymaster instruments

Once you have the airspace uploaded to your instrument, you can set triggers that will automatically switch you to the airspace page when you enter a buffer zone around the actual airspace.

To set up triggers:

  1. You must create a page in the DESIGNER application that has an airspace map in it. I have a whole page for airspace with a few data fields on it (Dist CTR, Alt to CTR, CTR status, altitude and speed). 
  2. Once the page has been created if you double-click on the page template on the left hand side of the page, you are given the option to use a number of different triggers. In this case to want to use the airspace warning trigger. Save this Designer file and upload to the instrument.
  3. Go to the "Settings" menu and select "alerts". There you need to ensure that you have enabled alerts for airspace.
  4. On the Flymaster instruments you can set a buffer zone around any of the airspaces. This will be the same size for all of the airspaces. You can set the size of the buffer zones in the "Airspace Settings" menu. The default values for the buffer zone are 2000m horizontally and 200 feet vertically. Once you enter this buffer zone, the screen on the unit will automatically switch to the airspace screen. There you will be able see what airspace you are close to and what you need to do to avoid entering this airspace. When you are out of this buffer zone, the unit will switch back to the original screen.


If you are not sure how accurate the http://www.maddyhome.com/ctr/ website is, or you want to get more details on particular airspaces, you can go to http://skyvector.com/ to check what there is. As an example, I blinded downloaded all of the airspace in the area that I typically fly in. At one of my flying sites, the airspace alarm would always trigger and so I disabled it the alarm meaning that none of the airspace alerts worked. Checking the skyvector map I realised that there was an MOA that covered our flying site. I have disabled that particular airspace covering the MOA and now have a better understanding of the airspaces and know that my instrument will let me know when I get close to airspace.

I hope this covers all aspects of airspace on the Flymaster instruments. Please note that running 1.22a on the Flymaster B1 Nav so that you can have airspace on the instrument, is not advisable as it makes the instrument super-buggy. Use 1.21q and give up on airspace until new firmware comes out. This new firmware will allow instruments to run