Simviation Forums

I finally decided to move from my little VFR cave to try an IFR autopilot approach.  I plugged in the ILS number and the AP took control of the airplane.  I entered the correct ILS according to the fs9 map feature (clicking on the MM).  At first i thought it was landing twoards the correct runway and all of a sudden it was playing around w/ my pitch and my throttle.  i was trying to land at 22R (or something like that) at KMDW and with APP hold i landed on Midway tower.  After a second try i had to fight the AP... i landed on the desired runway but,  as i was going to reverse the AP was throttling back up ...i felt like i was going to kill my computer...

Am I doing something wrong...let me rephrase that:
WHAT am i doing wrong?

Follow the writ of this post and you'll be fine.

http://www.simviation.com/cgi-bin/yabb/ ... 1111322151

thank you

key to landing ils :  make shure you have correct ils freq.   Trust the AP (i know i know its hard  ;) ) and turn ap off after touchdown

i usually do throttle myself   alows me to do something on landing  :)

Try out landings at various different airports, in some cases - if there is an obstruction or something in line with the rwy - leaving the aircraft on a/p means you will be dumped 200 yards to the right of the runway.
Also, remember to save the flight as the a/c turns onto final...

I'll try do an auto land tutorial?

One thing you can do is to observe decision height. That is set say at 300ft if you can see that you are centred and on the glide you can drop the AP and hand fly it onto the ground.

The key to a good ILS approach is speed and heading. FS9 ATC give no speed commands which they do in the real world! Remember if you are flying a jet to bring the speed under control by 15000ft. By 10000 and 35 miles you should be at 210knts. When FS9 ATC give a vector to establish on the localiser one is already quite close so be prepared to hang out ALL the washing so that as you intercept the glide slope you are doing no more than 180knts. Always approach the glide slope element from below. Watch the ILS like a hawk because if you miss the glide slope interception then it's better to 'Go Around' as it's messy to recover and your passengers will not be too impressed.(If you are taking them to a lawyers convention you're in BIG trouble LOL)

At eight miles from touchdown you should be at half flaps and then you can drop the gear.  Gradually bring the speed back until by 4miles out  you can be at 140kts with full flaps. All this makes it much easier for the AP to do it's job properly. And a final point your interception of the localiser heading should be on a tangent of 30 to 35 degrees.

Hope this is of some help. As suggested above try an ILS approach at another airport. A major international airport like Heathrow for example  where one has plenty of space and time to get it right.  When i learnt to fly in 87 i was always taught the maxim 'A good landing is made at the top of the glideslope'!!!

Vololiberista
PS 'A good landing is one that you can walk away from'!!!!!

The actual reson that you want to catch the glideslope from below is that you obviously want to AVOID the pseudo-glideslope, which will have you going on a  good 6+ degree descent, instead of the 3 degree standatd  ;D