Dropzone Safety and Training - Safety and training advice for skydivers at all levels. Skydiving emergencies, student course material, and related articles. www.dropzone.com/safety
Parachute Jump Calculation - Freefall simulation, to determine the most likely trajectories of (groups of) skydivers with different fall rates. [Java] lensmoor.org/cgi-bin/chute.cgi
Parachutes Safely - Information on flying and landing high performance parachutes with safety in mind. www.afn.org/skydive/sta/flynland.html
