The real-world Hawk T1/A does not feature nose wheel steering, and instead, requires pilots to use differential braking to turn the aircraft when on the ground. However, due to a variety of reasons (including usability), we continue to release updates to our Hawk T1/A Advanced Trainer (MSFS) with nose wheel steering enabled as the default option. This allows users with any hardware configuration to control the aircraft on the ground and the flight model has been fine-tuned with nose wheel steering in mind. 

During the development of our Hawk T1/A Advanced Trainer (MSFS), the development team dabbled in creating a flight model with differential braking enabled, however, in conjunction with our testing and QA teams, we determined that differential braking in its current form would not be suitable for inclusion in the product. However, as an option to allow the community to experience differential braking in the Hawk, we have included options within the flightmodel.cfg file that allows you to enable differential braking.

Please note, that this is an experimental change to the flight model and we recommend backing up the original flightmodel.cfg file prior to making any changes. You can also always re-run the Hawk T1/A Advanced Trainer (MSFS) installer located in your account to restore the original files. We also recommend that you only make these changes to the flight model if you own rudder pedals or other hardware that allows you to have independent and gradual control over the left and right brakes.  

Steps on how to enable differential braking in the flight model are listed below: 

1. Locate the Hawk's flightmodel.cfg file at ...\Community\justflight-aircraft-hawk-t1\SimObjects\Airplanes\JF_Hawk_T1 

2. Open the flightmodel.cfg file using a text editor such as Notepad or Notepad++

3. Scroll down the file until you find the [CONTACT_POINTS] section

4. In the [CONTACT_POINTS] section, the first two lines of code have labels "Nose wheel steering" and "Diff brake steering" at the end of each line. Both of these lines control the same parameters, but one is disabled due to the semicolon at the start of the line. To enable differential steering, delete the semicolon from the "Diff brake steering" line and add a semicolon to the start of the "Nose wheel steering line". The resulting lines should look like the following:

5. Scrolling further down the file, you should find a section starting with the parameter "max_speed_full_steering=0", followed by another section with the exact same parameters but different values. One section will have semicolons at the start of each line and is therefore disabled, the other section won't have semicolons and is therefore enabled. Repeating the same process as step 4, delete the semicolons from the section starting with "max_speed_full_steering=0" and add semicolons to the section starting with "max_speed_full_steering=35". The resulting sections should look like the following: 

6. Save the flightmodel.cfg and the changes will take effect the next time the simulator is launched.