Hi, I am new to IF and I am looking for Aircraft guides with specific procedures, speeds and configurations for take off, cruise and lading configurations. I recently tried to fly the 747-800 and crashed unfortunately… wrong approach speed.
To answer your question, you can use this topic to find takeoff and landing profiles for the vast majority of aircraft-a bit outdated, sure, but works just fine!
You can use performance and tools to calculate Vspeed Flap settings, thrust settings, etc.
SimBrief’s Flight Plan function is also very powerful. It can help you calculate the best cruising altitude and other information. You can explore here.