Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Trend of accuracy for pitch tilts. Negative tilts are backward pitch tilts; positive tilts are forward pitch tilts.This figure shows the same thing as Figure 4 but for pitch tilts. The result is the same but more prominent, here the slope of the linear regression is 0.22. A Friedman test also showed a statistically significant bias toward the initial tilt angle (p < 0.0001).
