The Airbus A320 startup procedure in Microsoft Flight Simulator 2020 (MSFS 2020), especially if you're using the default A320 or a mod like the FlyByWire A32NX, closely mirrors real-world procedures but is simplified for simulation. Here's a step-by-step guide:

1. Cockpit Preparation

• Battery Switches: Turn on both Battery 1 and Battery 2.

• External Power (if available): Turn on to power the aircraft systems.

• ADIRS (Air Data Inertial Reference System): Turn all three switches to NAV.

• Lights:

  • Turn on the NAV light.

  • Set the Beacon light to OFF for now.

• APU Master Switch: Press ON, then press the START button.

2. APU Startup

• Wait for the APU to start (check the APU indicator on the overhead panel).

• Once the APU is running:

  • Turn on the APU BLEED button.

3. Engine Start Preparation

• Fuel Pumps: Turn on all fuel pumps on the overhead panel.

• Engine Mode Selector: Set to IGN/START on the pedestal panel.

4. Engine Start

• Engine 2:

  • Move the Engine 2 master switch to ON.

  • Monitor engine parameters on the ECAM screen (N2, fuel flow, EGT, N1).

• Engine 1:

  • Once Engine 2 stabilizes, repeat for Engine 1.

5. Post-Engine Start Checks

• Engine Mode Selector: Set to NORM.

• APU:

  • Turn off APU BLEED.

  • Turn off the APU Master Switch.

• Ground Spoilers: Arm them.

• Flaps: Set to the appropriate takeoff configuration (e.g., Flaps 1).

• Trim: Set the pitch trim according to the takeoff configuration.

• Autobrake: Set to MAX.

6. Before Taxi

• Turn on the Beacon, Taxi, and Strobe lights as needed.

• Confirm all systems are operational and no warnings appear on the ECAM.

This simplified procedure should get you airborne in MSFS 2020. For a more realistic experience, consider using the FlyByWire A32NX mod, which enhances the A320's systems and procedures significantly.