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Whatfore the LOC button is than???

For capturing the ILS LOCALIZER. I only use the LOC button just prior to caturing the ILS and then after caputing the ILS I select APP.

The FMC controls the autopilot along the course up to the point of capturing the ILS. So. If I fly a VOR to VOR route, I enter the VORs into the FMC and it will fly directly from one to another.

Mark