Tecnam P92 Echo Super - 3.4 Aircraft Leveling and Control Surface Settings; 3.4.2 Trim-tab Adjustment Procedure

P92 Echo Super
Maintenance
Manual
14
Revision Date:
10-29-2007
Revision Number: 3.01
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3.4 Leveling
Occasional leveling of aircraft may be necessary to insure proper wing incidence and/or dihedral or for
e xact CG location.
The aircraft is level when the cabin floor and, in a transversal direction, the landing gear bulkhead are horizontal. Level the
aircraft using a simple spirit or water level and adjust the
aircraft‟s tilt through shims placed under wheels or by regulating
tire pressure.
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3.4.1 Control surface settings
Adjustment of control surfaces must not exceed travel limits reported in table below. The zero reference mark for stabilator
is on left side of aircraft (see figure below).
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AILERONS (starting from tip line-up)
Up 20°
Down 15°
" 2°
STABILATOR
Up 16°
Down 3°
" 1°
TRIM (Stab. at 0° , see fig. below)
2°
12°
" 1°
RUDDER
RH 25°
LH 25°
" 1°
FLAPS (max travel)
0°
38°
" 1°
CONTROL CABLE TENSION (for all)
20 daN (45#)
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" 2 daN ( " 4#)
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REFERENCE MARK
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F
IGURE 3-1 STABILATOR ADJUSTMENT.
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3.4.2 Trim-tab adjustment
Travel adjustment of trim tab on stabilator should be carried out as follows:
! Move stabilator to neutral (0 degrees) and lock in position; (this is accomplished by aligning the leading edge of
the stabilator with the reference rivet located on the left side of tail cone);
! Turn Master Switch ON
! Trim to maximum pitch-up
! Adjust thread of hinged control rod until tab is deflected downwards 12° (use a protractor or measure downward
displacement of trailing edge - 12° is approximately 24mm (.945”)
! Trim to maximum pitch-down
! Tighten lock-nut for adjustment thread and fasten connecting pin of control rod to trim-tab