Aeroporc,

This information is covered in the manual, but I'll give you a quick look at the 727-100 autopilot.



This is a break down of the areas of the 727-100 autopilot.

From left to right:

Autopilot Mode selector- [ 1 ] allows you to select manual mode which is where the switch is in this picture, or you can select the three radio modes called:

NAV/LOC - this mode will track a VOR radial or the localizer part of the ILS.

AUTO G/S - automatic capture of ILS. You must capture the LOC first and then capture the G/S from below.

MAN G/S - forced capture of the ILS

Next is pitch and roll.- [ 2 ] The knob turns left and right to roll the plane in a turn, and the knob also can pivot up and down to control the pitch of the plane. The roll and pitch is controlled by using the mouse. When you mouse over the control, a hand appears and by pushing the mouse button you can drag the knob left or right to turn the plane. Also, when you place the mouse over the narrow front of the knob and make short taps on the mouse button the pitch will change. This requires very small taps of the mouse button otherwise you will OVER control the pitch and loose control of the plane. You can observe the ADI and watch the pitch change as you make small taps of the mouse button. You can also look for a mouse over message that will show you the pitch change. Place your mouse on the aft or fat part of the knob and make a short tap of the left button (see picture below). This will cause the pitch to increase. The line through the knob shows the pivot point. The double headed arrow line is trying to show that the knob can pivot on that axis. This takes some practice and is some times a royal pain to use, but it was a pain in the real plane as well. The latter autopilot in the 727-200 has a pitch wheel which works much better.

Aileron Paddle - �[ 3 ] engages the aileron channel of the autopilot. You can engage just the aileron channel of the autopilot and control the pitch with the yoke.

Elevator Paddle - �[ 4 ] controls the pitch channel of the autopilot. Will not engage unless the aileron paddle is engaged. Engaging these paddles turns on the autopilot. You can manually pull the paddles off, or hit the yoke disconnect button [Z]. If you pull the ELEV paddle off the AIL channel will stay engaged. If you pull the AIL paddle off the whole autopilot turns off.

ATL HOLD - �[ 5 ] engages the altitude hold part of the autopilot. The autopilot will attempt to hold the altitude at the time the switch is turned on. If you are climbing or descending when you flip the switch the autopilot will go through a few pitch oscillations before it settles down. Try to be level, or at a very small reading on the IVSI before turning on this switch.

HDG SEL - �[ 6 ] only works in manual mode. It follows the heading bug in the Captain's HSI.

HYD Selector - �[ 7 ] allows you to control which hydraulic system the autopilot uses to control pitch. The A-B position is used to supply a redundant source of hydraulic power for an autopilot approach.



I hope this helps. It takes a bit of trial and error to get the results you want. Use the autopilot and play with the various modes until you get a comfort zone.

Lou

Thanks a lot LOU, i try tonight, the Autopilot of the 727 is difficult for a new pilot !



Thanks !

Me likes weeeeeeee.  
You can always scream 'I'm just following the charts!' to the paying payload then. 

Great read about the AP, Lou. CS should make that sticky or add it to the KB, or both.

Lou,
Thank you.It is an excellent  information.You are a "Good" teacher.
Sanal

Jack S.,

Welcome back to the "Pig."

This is a fun airplane to fly and do takeoffs and landings.

Lou TWA- 680503

Hi Lou:

And how did you flied Holding patterns? Using the turning knob, the heading select or by hand? If using turning knob how did you proceeded?

Regards.

I am unable to maintain altitude and the controllers keep contacting me to adjust altimeter setting constantly  Even though I press the "B" key and check the numbers they're close then I adjuts using the mouse.They keep on contacting me. It's a nuisance!All I've done to the a/p is add the GPS gauge as itwas added back then. Here´is my a/p section in the panel.cfg file:

[Window03]
Background_color=0,0,0
size_mm=447,106
position=2
visible=0
ident=10005
gauge00=Captain_Sim.p721.P12!P12_001_ap, 20,0, 427,106
gauge01=Cessna!Nav_GPS_Annunciator, 0,0,20,20
gauge02=Cessna!Nav GPS Switch, 0,20,20,20

Has there been an update or amI missing something?

Berlopez

Hi Lou: (Hick)...I think the reason I was having all those calls, was I was using a saved flight and downloading real Weather on top of it ??? I'm not 100% certain of this.

I just reflew the flight had terrible difficulties loading the 727 from start.So I loaded the default 737-800... I'm Loading FSx with AlacrityPC Which a member at the avsim forums helped me install.When I reached my cruise alt. I changed to the 727 and continued the flight. All went very well. It behaved itself; Upon landing at Hamburg ( Hamburg airport ILS RWY 5 it went by the book!  









Berlopez

Hi Lou
I have been practicing landings for a few weeks and I'm trying to keep from porpoiseing in the glide slope. Is there any good technique to stop this from happening. Auto GS is the worst for this condition at KJFK. I am pretty sure I am low enough to be under the GS when I capture it. The manual GS usually keeps me at -700 fpm on descent which is what I want. I am starting at 1500 alt and about 8 or 9 miles out from rwy 22R. Any suggestions would be helpful.

Fly from Portland wrote on Jun 15^th, 2014 at 5:40am:


I had porpoising with the 727 A/P pilot as well. Are you using SP2 or are you running Acceleration? When I reinstalled FSX I changed from SP2 to Acceleration and the porpoising problems completely stopped and the AP has been very smooth since. But, as Lou pointed out, incorrect throttle usage can also cause this problem. If you're running SP2 and not Acceleration, that could be the problem. But regardless of SP2 or Acceleration, throttles must be managed with finesse while on GS capture. Just a little insight for you.

cheers,
Brian

Marc,

RW 22L where? KJFK?

Anyway, as you know, this is NOT an auto-land plane so you must disconnect and hand fly the plane to a landing. Not sure why the ILS or Plane wants to be off the centerline, but I have seen that before and it was some ad-on scenery I had that was not correct.

The heading that you would put in the HSI window will not cause this as the ILS does not use this information like the VOR. If you put in the wrong heading, the autopilot sees that as a crosswind.

I have acceleration installed.

Lou

I'm bad. I disconnect the A/P at arpund 200 feet AGL and fly it the rest of the wsy. I rarely have any trouble with it holding the ILS and it aligning with the centre of the runway.

I have FSX Acceleration too.

Anybody want to tell me why the LOC freqs at KLGA do not work on FSX.
Especially rwy04, 110.50. NO DME, nothing.

In Australia, most LOC are not DME. I'm disappointed in it, but it might be like that in real life, so ... it is what it is.

Thanks a lot  .

Dear: During climb after takeoff the pitch up of 727-100 was around 10 deg. But when I engaged AP, the pitch angle goes down and the plane becomes uncontrollable. I have to disengage AP, fly for sometime manually and then again engage AP, after that it becomes okay. Why at first attempt nose is going down?

David:

Yes, I am using FD, preset pitch up 11 deg.

Dear David:

The actual procedure is to preset take off pitch with FD... Is that a bug in CS727 v2.7? Are they going to correct it?

Lou, your tutorial is a life saver my friend. I was able to shoot my very first ILS landing in the 727! Love it love it! 

Hey!

So if the AUTO GS requires a capture of the glideslope from below, can I use MANUAL GS to get the AC onto the glideslope from above if I'm coming in high? And then SWITCH to AUTO GS for the combined ILS beam approach once the GS is captured? I have been trying to figure this out -- the ILS on the 727 is much less forgiving to use than on the 707 Captain, which somehow gets me onto the ILS approach nicely almost every time. With the 727, there seems to be less of an easy transition. Any tips would  be appreciated here.