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.
Feature Article: Trimming Cessnas (instructor notes)
Cessna has engineered its trim so that certain changes in trim
can be anticipated to correspond to flight path changes in different
models. For example, in the C-150 from level cruise abeam the
numbers, a power reduction to 1500 can be trimmed off by holding
heading and altitude to 60 knots. It will take three full top-button
to the full travel bottom to do this. Pinching between the buttons
will leave you short. 10 degrees of flaps while holding sixty
with the yoke can be re-trimmed to a 60 knot descent by undoing
one of the previous three turns. Bottom button all the way to
the top. Let go and if the nose begins to change pitch make the
slight trim adjustment required. 10 more degrees of flap while
holding 60 knots can be locked there by taking off another full
turn of trim. Full flaps while holding sixty can be set by taking
off the last turn. You, every student and pilot, should learn
a count or feel system for applying and removing flaps. Learn
to use the flaps without looking at the indicator during application.
A four count works well for 10 degrees on a Cessna. Flaps that
have indent settings will work only if calibrated for trim movement.
Cessna ruined a terrific engineering design when they build
the C-152. The trim/flap ratios of the C-152 are there but not
at 1 to 1. You can work out the procedure for stabilized airspeeds
by using the suggested procedure of the C-150 and keeping track
of the amount of trim required for each ten degrees of flap. It
can be done but the neat engineering isn't there. Abeam the numbers
the C-152's power should be set at 1600. By the 'key' position
it will be at 1500.
Last Modified January 16, ©2026 TAGE.COM
