User manual

Page 51

Aircraft Operation Manual

Piper Cheyenne I, IA, II, IIXL

For ight simulation use only

Basic Attitude Reference Mode

Activated with „power on” (AP) but with no modes selected. The Flight Com-

mand indicator (Flight director bars in the ADI) and horizontal situation indicator

(HSI) will display existing attitude and heading. The Command V-bar is retracted

out of view until a Flight Director/Autopilot mode has been selected.

Flight Director (FD)

Command V-bar will call for wings level. The pitch attitude of the aircraft will

remain the same as at the time of mode selection.

Heading (HDG)

Select desired heading on HSI, then select the HDG mode and the system will

command the necessary bank to turn to and maintain the selected heading.

NAV (VOR/GPS)

Set desired course on HSI and select NAV mode. The system’s all-angle NAV Course

Capture feature gives the pilot complete freedom to select any intercept angle

in response to ATC vectors, using HDG mode. The NAV mode will be „armed,”

and at the capture point HDG will automatically disconnect and the system will

„couple” and command the necessary bank to capture and track a selected VOR

or GPS course without overshooting (Note: Overshoot protection is not possible

in Microsoft Flight Simulator).

Approach (APPR) (ILS or VOR)

Set the inbound front approach course on the HSI and select Approach mode.

The system’s all-angle Approach Course Capture feature allows the pilot to select

any intercept angle in response to ATC vectors, as in the NAV mode. The Ap-

proach mode will be „armed”, and at the appropriate capture point the system

will „couple” and command the necessary bank to capture and track LOC and

Glideslope beams for precision approaches, or bank command to capture and

track VOR courses for nonprecision approaches.

Back Course (BC)

With back course selected in approach mode, the system when capturing will

command the bank necessary to capture and track a reverse LOC course. Glideslo-

pe is locked out. The inbound front approach course is always set on the HSI to