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Flight Management System (FMS) for the Agusta AW139/AB139 Helicopter
— 6R -- When performance initialization is complete, the CONFIRM
INIT prompt is displayed in the lower right corner of this page.
The CONFIRM INIT prompt is selected for the performance
function to calculate performance data and for the VNAV function
to be available.
Selecting the CONFIRM INIT prompt initializes performance.
The CONFIRM INIT prompt is not available and performance
predictions are not computed if the ACDB is invalid.
PERFORMANCE DATA
The performance data pages permit the pilot to monitor important
performance calculations made by the FMS such as the hover ceiling,
velocity hover limit, and velocity flyaway limit. Category A ceiling
altitudes, and best range, and endurance are also displayed. The
performance data pages are displayed when an active flight plan and
performance initialization is completed. When changes are made to the
flight plan, performance data computations are updated. In flight,
factors such as unexpected winds or routing changes alter the
predictions.
When performance data is recalculated, the displayed data is blank
during the few seconds of calculation. This operation is the general rule
for all pages displaying performance data.
Performance Data Pages 1 and 2 Definition
The same information is displayed on lines one through three on the
PERF DATA pages 1/4 and 2/4, shown in Figure 5--10.
The following line select keys correspond to the associated definitions
on the PERF DATA pages 1 and 2.
A28- - 1146- - 181
REV 3 Mar 2009
Honeywell International Inc. Do not copy without express permission of Honeywell.
Figure 5- -10
PERF DATA Pages 1/4 and 2/4
Performance
5-17
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