AUZ087 wrote on Sep 16^th, 2017 at 9:35am:

The new 727 comes with INS - but darned if I can work out how to get it going. (turning on, entering pos, waypoints etc etc etc - but actually getting it to navigate ??)

To make the 727 fly the route in the Captain Sim CIVA INS:

6. Navigation Source Selector
Autopilot will track CIVA-INS flightplan:
- Autopilot Mode Selector should be in MAN position;
- Autopilot HDG Switch should be engaged;
- Autopilot Navigation Source Selector - pos AB;
- Heading Bug on Captain's HSI will be controlled by CIVA-INS.

The above is copied from the ‘727 Captain’ FLIGHT MANUAL Part II – Aircraft and Systems (cs727_manual2.pdf) page 68.