Direct To and Intercept Course To
If the airplane is not on the active leg segment, LNAV may deactivate or it may not activate when armed. This happens after the airplane crosses a discontinuity, or is not on an intercept heading to the active leg segment. Here are three ways to arm or activate LNAV:
- When the airplane is within 2.5 miles of the active leg, push the LNAV switch. LNAV activates and intercepts the active route leg.
- When more than 2.5 miles from the active leg, push the LNAV switch when the airplane is on an intercept heading to the active route leg. Initially, LNAV arms and then activates as the airplane approaches the active leg. An intercept heading must intersect the active leg inbound before the active waypoint.
PEGASUS FMC
- Fly direct to a waypoint or intercept a course to a waypoint. Enter a waypoint in the RTE LEGS page active waypoint line to fly direct. Use the INTC CRS TO prompt in line 6R to create an intercept course to the waypoint. Push the LNAV switch and LNAV arms or activates, depending on the distance from the active leg.
NON PEGASUS FMC (BASIC)
- Fly direct to a waypoint or intercept a course to a waypoint. Select the DIR/INTC key and enter the waypoint in the DIRECT TO boxes to fly direct to the waypoint. Enter the waypoint in the INTC LEG TO boxes to intercept a course inbound to the waypoint.
Pegasus | 11.42.7 | Direct Intercept>