Use the fsuipc PyPI package (maintained by MobiFlight contributors). Installation & Setup (Working Example) pip install fsuipc Pre-requisites: FSUIPC 6 (for P3D/FSX) or FSUIPC 7 (for MSFS 2020/2024) installed and licensed (unregistered works but limits offsets to read-only and basic ones). Code Example – Read Live Aircraft Data import fsuipc import time Connect to running simulator (auto-detects FSUIPC version) fs = fsuipc.FSUIPC() fs.open() Offsets: (address, type, length) 0x0240: IAS (4 bytes, integer knots) 0x02B4: Latitude (8 bytes, double) 0x02BC: Longitude (8 bytes, double) 0x0B70: ATC Model (string, 24 chars) def read_flight_data(): ias = fs.read(0x0240, fsuipc.TYPE_INT, 4) lat = fs.read(0x02B4, fsuipc.TYPE_DOUBLE, 8) lon = fs.read(0x02BC, fsuipc.TYPE_DOUBLE, 8) model = fs.read(0x0B70, fsuipc.TYPE_STRING, 24) return ias.value, lat.value, lon.value, model.value.strip()
If you're serious about flight sim automation, buy the FSUIPC7 license and use the fsuipc Python library. It's the most reliable and performant way to bridge Python to any desktop flight simulator. Skip raw SimConnect unless you need official Microsoft support or cross-platform (Mac/Linux) — but then X-Plane is your only option. Sample Project Idea to Get Started Build a Python-powered "Black Box" recorder that logs every control input and aircraft state during flight, then replays with matplotlib animations. This is achievable in under 200 lines of Python with FSUIPC. Pro tip: Join the FSUIPC support forum on AVSIM and the MobiFlight Discord for Python-FSUIPC help. Many users share offset maps for popular aircraft (PMDG, Fenix, FBW). fsuipc python
print("Connected to", fs.sim_name) for _ in range(10): ias, lat, lon, model = read_flight_data() print(f"Aircraft: model | IAS: ias kts | Position: (lat:.5f, lon:.5f)") time.sleep(1) Use the fsuipc PyPI package (maintained by MobiFlight
Overview FSUIPC (Flight Simulator Universal Intercom Peripheral Controller) by Pete Dowson has been the gold standard for interfacing external apps with Microsoft Flight Simulator (FSX, P3D, and now MSFS via WASM). Pairing it with Python creates a powerful, flexible, and relatively simple way to read/write simulator data without needing C++ or .NET. Key Python Libraries for FSUIPC | Library | Python Version | MSFS Support | Ease of Use | Last Updated | |---------|---------------|--------------|-------------|---------------| | pywin32 + raw FSUIPC_User.lib | 3.x | Partial (via 7.x) | Hard | N/A | | pyFSUIPC (original) | 2.7 only | No | Medium | 2015 (dead) | | fsuipc (by mobiflight ) | 3.6+ | Yes (via FSUIPC7) | Easy | 2023 | | pysimconnect + FSUIPC-WASM | 3.8+ | Yes (native) | Medium | 2022+ | It's the most reliable and performant way to