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<img src='content_image/553551.jpg'>

9. Failure to note the cause of a previous heading error and thus repeating the same error. For example, the airplane is out of trim with a left wing low tendency. Repeated corrections for a slight left turn are made, yet trim is ignored. 

## Power 

Power errors usually result from but are not limited to the following errors: 

1. Failure to become familiar with the aircraft’s specific power settings and pitch attitudes. 

2. Abrupt use of throttle. 

3. Failure to lead the airspeed when making power changes, climbs, or descents. 

Example: When leveling off from a descent, increase the power in order to avoid the airspeed from bleeding off due to the decrease in momentum of the aircraft. If the pilot waits to bring in the power until after the aircraft is established in the level pitch attitude, the aircraft will have already decreased below the speed desired, which will require additional adjustment in the power setting. 

4. Fixation on airspeed tape or manifold pressure indications during airspeed changes, resulting in 

erratic control of airspeed, power, as well as pitch and bank attitudes. 

## Trim 

Trim errors usually result from the following faults: 

1. Improper adjustment of seat or rudder pedals for comfortable position of legs and feet. Tension in the ankles makes it difficult to relax rudder pressures. 

2. Confusion about the operation of trim devices, which differ among various airplane types. Some trim wheels are aligned appropriately with the airplane’s axes; others are not. Some rotate in a direction contrary to expectations. 

3. Failure to understand the principles of trim and that the aircraft is being trimmed for airspeed, not a pitch attitude. 

4. Faulty sequence in trim techniques. Trim should be utilized to relieve control pressures, not to change pitch attitudes. The proper trim technique has the pilot holding the control wheel first and then trimming to relieve any control pressures. Continuous trim changes are required as the power setting is changed. Utilize the trim continuously, but in small amounts. 

