You've posed a captivating question that many FSX enthusiasts who've transitioned to Microsoft Flight Simulator (MSFS 2020) can resonate with. While I can't provide a complete step-by-step guide to aircraft conversion due to its technical complexity, I can definitely outline the general process and recommend resources to help you on this journey.
It's important to note, the FSX and MSFS 2020 platforms operate on fundamentally different graphics and physics engines. Meaning, there's no simple 'convert button' for moving aircraft from one platform to the other. Instead, the process entails modifying and adapting the existing aircraft files to make them compatible with the newer platform.
Step 1: Obtaining Permission
The first step to converting an aircraft is to seek permission from the original designer or copyright holder. This might seem like a formality, but it's an essential step in the ethical conversion of aircraft models.
Step 2: Extracting and Adapting Model Files
Once you have the permission, the next step is to extract the model files from the original FSX package. These typically include the 3D model files, textures, and aircraft configuration files.
Some of these files can be adapted and used in MSFS 2020, but others, like the aircraft configuration file, will need to be rewritten to ensure compatibility with the new simulator's physics engine.
The 3D model will also need some reworking to take full advantage of the advanced rendering techniques available in MSFS 2020, which is a significant improvement over the older FSX graphics engine.
Step 3: Importing and Adjusting in MSFS 2020
This involves importing your model into MSFS 2020 and making necessary adjustments to ensure that the model functions correctly in the new environment. This step can be quite complex as it often requires a deep understanding of the new simulator's systems and coding.
Step 4: Testing and Tweaking
The final step is to extensively test the aircraft within MSFS 2020, and tweak the aircraft's performance to closely match that of the real-world counterpart.
To help with this process, I recommend exploring resources like the official Microsoft Flight Simulator documentation. This provides a comprehensive guide to the architecture of aircraft in MSFS 2020 and is a must-read for anyone undertaking a conversion.
Remember, aircraft conversion is a challenging project that requires patience, but with time and dedication, it can be incredibly rewarding, especially when you can fly your favorite model in a state-of-the-art simulator.
I hope this helps and wish you the best of luck in your endeavors to get the Corby Starlet flying in FS2020.