I don't know. I've never had much trouble with the CWS in the 737.

By that I mean that when using the banking part of CWS, it starts to level the wings before it returns the the position I released the joystick at (I hope you know what I mean).

The CWS pitch works very well.

Yes Acceleration.

Let me rephrase it. Is CWS in 737 consistently working as expected for folks? I'm just trying to see if I need to troubleshoot or as shrug it off.

Thanks.

Random thought: I really like Bud's mod and rule of thumb for setting epr  for cruise. Brilliant. I may try fsxpaul's gauge next, although last time I tried I hosed up something.

I often fly the 737 using CWS to control it. Especially after takeoff and when capturing the ILS/GS. I find it very good. I only have some minor issues with it. These are:

1. I want to do a turn with a 20 degree bank, so I start banking and release the yoke when the bank angle reaches 20 degrees. The 737 will start to level the wings (often to about a 5 degree bank), but then it will return to the 20 degree bank and hold it until change it (be that levelling off, or changing the bank angle).

2. The pitch is pretty good, but it's a bit hard to push the yoke forward and get the angle of attack I am trying to achieve for a descent. Pulling the yoke back for the angle of attack for a climb works fine for me.

So generally speaking, I find CWS pretty good once you understand (master?) it's idiosyncrasies.

I do not use any mods at all with my 737. I did beta test Paul's V-One gauge and his fix for the loss of battery power - the problem where battery power drains and prevents you being able to start AP or engines, and ground/external power (EP) doesn't help either, so you are stuck in a "dead" aircraft. Mind you, the battery power drain problem doesn't happen very much for me, and when I do have the problem again, I simply *uninstall/reinstall it and it works properly again. So I have an "easy" fix for the problem.

* NOT the full uninstall/reinstall as in KB #685. It's just a simple uninstall/reinstall.

You got me thinking about it, so I got in a did a flight. The CWS is better than I remember it being. So it isn't as bad as I stated in my previous post.

I am doing a flight with a flight plan loaded, but I am controlling it using only CWS, for both pitch and bank, until I turn on ALT HOLD on at FL360. Then I will continue to use CWS for bank only. So far (just coming up to FL340) it's going really well.

EDIT #1: I get what you mean by the CWS being "sticky". I find it especially "sticky" when wanting to make slight banking movements. You pull the joystick left or right and the CWS suddenly "lets go" and the bank angle then jerks to left or right! So that certainly does need fixing.

EDIT #2: I finished the flight in the 737 and it went really well. As I said, I used ALT HOLD at FL360, but followed the route tracks using CWS banking to change the course. While the "sticky" CWS made banking initially difficult, once it became "unstuck" it worked fine.

I am currently doing a return flight in the CS L-1011. This time though, I am using the A/T and ALT HOLD (at FL350). The difference between the CWS in the 737 and the L-1011 is quite a noticeable. In an earlier post in this Topic, I stated that if the CWS of the 737 could be brought to the level that the CWS is in the L-1011, then it would be a great improvement to the CWs control in the 737, and I'll stand by that comment.

I have no luck with the CWS system. After takeoff, I will turn on the AIL channel to control Lateral Navigation and the autopilot just holds the current pitch. This is fine but when I want to modify the pitch it is impossible for me to do so. I nudge it slightly and hold it - nothing. I push it all the way forward - nothing. The elev trim just clicks away contrary to my input. If I turn the elev channel on it does the same. Nothing matters from hdg, nav, or man modes it will not let me modify the pitch.

I like the plane but flying manually all the way to cruise, while changing radios, navigating to way points, changing the course and heading bugs, is all rather taxing. This is compounded by the problem that if I'm climbing at 2000/ft.pm then look away to change a radio or something I can look back and I'm climbing 6000 ft.pm or descending.

I took it out yesterday and had better results. I just maintained rwy heading and climbed then descended. I found if I nudge it forward and little and hold it the cs will engage and hold the pitch. A few times it seemed to disengage completely and I had complete control.

I just need to gain a few more hours with this bird and I'm sure I'll have it down.

Tim Capps wrote on Nov 24^th, 2014 at 2:41pm:


CWS out the box works fine for all CS planes that have CWS like the 737 and L-1011.