References
and performance
VS mode maintains the vertical speed existing at the time of engagement.
When engaged the vertical speed reference is displayed as a set bug and a digital readout in
magenta on the Vertical Speed Indicator on PFDs.
The vertical speed reference bug is adjusted by either:
• setting either pilot or copilot collective Beep Trim CLTV/YAW switches to UP (to increase
VS) or DN (to reduce VS) (Beep rate: ±150 fpm/s)
• pressing the collective FTR switch while flying to the desired vertical speed, and then releasing
the FTR.
The VS mode reference can be set in the range of –1500 fpm to +2000 fpm.
The VS reference is resynchronized when there is a transition from FD Uncoupled to FD Coupled.
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