We Help You Pass
Our free online study guide really works. You can study for your FAA private pilot ground school exam right now. For more info about the 4VFR.COM project, click here. You can find a daily update log here.
Live ATC Audio Streams
Tune into live air traffic control frequencies from North America. This feature requires Real player. Start listening to ATC now!
Reference Library
Our glossary lists and databases have grown quickly. I am working to create an on-line reference library to tie together all the loose ends. You can check out what is currently available in the library
FAA Practice Exam - New!
Introducing our newly enhanced practice exam. Now with figures!. Take a test a day for a week, and I guarantee you will do better on your exam.
Get Started Now
Show your support for 4VFR.COM - Link us. Bookmark us. Tell your mother about us. Press CTRL-D to bookmark this site now!. Check out one of our proposed T-Shirt Designs.
Exams Taken
272
Feature Article: Pilot Error 50 Years Ago
In December of 1947 an Air Force study released the following
analysis of pilot errors that precipitate accidents. There is
no reason to think things have changed since then.
- 50% of problems are "substitution" errors
where the incorrect control is moved
- 18% are "forgetting" errors in which the
pilot forgot to unlock, check or use a control.
- 18% are "adjustment" errors by operating
a control too slowly, rapidly or into the wrong position.
- 5% are unintentional activation.
- 6% were "reversal" errors such as moving
the control in the wrong direction.
- 3% are caused by inability to reach a control.
Last Modified October 31, ©2026 TAGE.COM