In addition to Dragon,
A key turns you left, D key turns you right.
If your joystick or throttle had a 4 way hat switch, you can map these commands. To do that, open up your control assignment screen. Note; you'll see the Mode Selection window, click on Mode 2-Vehicles&Boats. Select the device and button/hat you want to assign tank movement commands to. A new window will open - Select AH Function. Choose vehicle. Now make your assignments one by one, and click OK after each one. Mode 2 commands allow you to reassign inputs that have already been assigned to air combat functions. When you jump into a tank, AH will automatically revert air commands to tank commands.