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PRIMUS
R
660 Digital Weather Radar System
A28–1146–111
REV 2 5-17
Radar Facts
LEVEL FLIGHT STABILIZATION CHECK
Check stabilization in level flight using the procedure in table 5–3.
Step Procedure
1 Trim the aircraft for straight and level flight in smooth,
clear air over level terrain.
2 Select the 50–mile range.
3 Rotate the tilt control until a band of ground returns
starts at the 40 NM range arc.
4 After several antenna sweeps, verify that ground
returns are equally displayed (figure 5–18). If returns
are only on one side of the radar screen or uneven
across the radar screen, a misalignment of the radar
antenna mounting is indicated.
Stabilization in Straight and Level Flight Check Procedure
Table 5–3
NOTE: Refer to Section 7, In–Flight Adjustments, for procedures to
adjust pitch and roll offsets.
Symmetrical Ground Returns
Figure 5–18