Okay, here's the situation.
I'm in a Boeing 737-400. I want to fly an autopilot Approach Hold landing into KSFO but I keep landing in the water.
I'm about 1,800 feet around 20 miles out. I got the glideslope on my HSI. I press the APR button with autopilot armed. And I always plummet into the sea.
Is there a trick to using the APR button?
Do I disable all other autopilot switches (heading, altitude, IAS) before pressing APR? When should I press APR for the first time? Should autopilot do all of the work in Approach Hold mode?
Please help me someone!
In a similar question, can you provide quick tips on flying this in manually? I understand I must line up the purple "runway" into the centerline by making small heading adjustments. Once centered, how do I know if I'm the right altitude? Do I just start descenting and the purple indicator on the side of the HSI lowers appropriately?
Thanks very much!