The official iPhone App for the Speed Tunnel.
This application presents the relationship between aerodynamic drag, speed, elapsed time, and power for a cyclist. It also shows the relationship between bike speed and cross wind as it pertains to effective yaw angle.
These calculations answer questions related to changes in aerodynamic drag for cyclists such as:
"How much will my time drop?"
"How much faster will I ride?"
"How much easier can I pedal?"
"How much more aero do I need to be?"
"Whats my yaw angle?"
For more information and to purchase your ticket for the Speed Tunnel, visit us at speedtunnel.net.