Fight data viewer
Flight Data Viewer is a free, open source software that recives data from Microsoft Flight Simulator through FSUIPC and displays them in a simple form. It is written in C# and requires FSUIPC to function.
FLight data recorder
Open-Source Flight Data Recorder For MS Flight Simulator
This software records and analyzes data retrieved by FSUIPC from many versions of Microsoft Flight Simulator. Its data is stored in a simple comma separated variable file (*.csv) that can easily be opened in Microsoft Excel and similar spreadsheet programs. Recorded data can be viewed in a table or a graph in real-time. It also includes a map that shows the current location through the Google Maps API.