SANDIA aerospace SAI-340, Pilot'S Manual

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10
3700 Osuna Road NE
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2.8 Altitude Bug
The Altitude Bug is enabled, disabled and adjusted using the Rotary Knob with Pushbutton.
Figure 6 provides an overview of the pushbutton functionality.
Pressing the pushbutton for 3 seconds allows editing the Altitude Bug (Figure 10.b). The digital
Altitude bug value will appear in the upper right corner of the display while editing the Altitude
Bug. Rotating the knob while editing the altitude bug will modify the Altitude Bug in
increments of 50 feet.
When done adjusting the altitude bug, a short press of the pushbutton will set the bug (Figure
10.c). If the altitude bug is not adjusted for 7 seconds while in the editing mode, the bug will
become set at the current value.
While editing the Altitude Bug, holding the pushbutton down for 3 seconds will disable the
altitude bug (Figure 10.a).
Figure 10- Altitude Bug Modes (a) Disabled, (b) Adjusting/Editing, (c) Enabled)
2.9 Roll & Pitch
Roll is shown in fixed pointer format - the pointer remains in a fixed location relative to the
instrument housing and the roll scale rotates with the horizon. The background blue/brown
horizon is limited such that some ground or sky reference always remains present on the screen.
The pitch ladder and heavy white horizon line will “detach” from the background horizon in
these cases.