Getting Started

BASEline is a set of tools designed to help skydivers and BASE jumpers improve wingsuit flight performance. BASEline consists of two parts:

  • BASEline Flight Computer is an android app that uses phone sensors to provide audible and visual feedback on speed and position, as well as logging data for later analysis.
  • is an interactive website to help process and analyze flight data.

BASEline is provided free of charge, because wingsuiting is fucking dangerous, and everyone should have access to the best tools.

This website is an online tool for analyzing wingsuit flight data. To use this website, first you must record GPS data from your skydives and BASE jumps. If you don't have a GPS logger, check out our hardware setup guide.

Once you have tracks uploaded to you can:

  • Display your horizontal speed, vertical speed, total speed, and glide ratio during a jump
  • Display a profile view of your start performance on a BASE jump
  • Compare your start performance across multiple BASE jumps
  • Visualize a jump in 3D using Google Earth
  • Evaluate flight plans using Google Earth

Upload tracks

The easiest way to upload tracks to BASEline is to record the data using the BASEline Flight Computer app, syncs tracks directly to your BASEline account.

You can also upload track files from your computer. Once you are signed in to, you should see the upload area on your tracks page:

BASEline file upload box

BASEline currently supports data files from the following sources: BASEline Flight Computer, FlySight, GPX files, and some KML files.

Analyze Flight Data

1. Compare start arcs across multiple jumps

On your user page you can select tracks to see at their flight profiles. By jumping repeatedly from the same exit you can build up a database of start arcs. You can see the difference between a good start versus a bad start, and evaluate terrain more scientifically. Keep in mind that many factors affect start performance, including wind, temperature, elevation, etc.

See chart help for more information.

2. Evaluate terrain in 3D

From the track page on, click the Google Earth link to download a KML file with your jump data.