Trim devices are part of the flight control system to reduce the work load.. .. .When there is a need for manual pressure to maintain a desired attitude in pitch, roll or yaw the use of trim reduces the work load, therefore it should be used as needed.. .. .It is especially important in ab initio training to teach the proper methods from the very beginning because the student may go on to become a flight instructor and should understand the correct way to fly an aircraft. . .. ........... . <img border="0" title="" alt="[Big Grin]" src="biggrin.gif" /> The hardest thing about flying is knowing when to say no. <img border="0" title="" alt="[Big Grin]" src="biggrin.gif" />