Autoland/approach mode (APPR) is the system we have in Infinite Flight on some aircraft that automatically lands the aircraft without control inputs from the pilot. It’s great for landing in conditions with low visibility, such as nighttime or fog. Many pilots also use APPR because of its ease and convenience for landing.
One problem the APPR system has is its rough landings. With the current APPR system, an aircraft flares a few seconds too late, usually resulting in a -400 fpm touchdown, which is a considerably rough landing. Real life autoland systems can land just as softly as a pilot, if not softer. Two examples of a rough APPR landing are shown below, but simulated in windless conditions. The final landing vertical speed was approximately -421 fpm. You can clearly see the roughness with which the aircraft lands. While the aircraft used was a CRJ, this phenomenon is consistent with every other APPR-equipped aircraft in Infinite Flight
Violent Jerking and Overcorrections
The second problem the APPR system has is the violent jerking of the aircraft caused by the system attempting to intercept the glideslope/localizer, even with the aircraft perfectly aligned. When APPR is engaged, it will immediately force the aircraft in an extreme vector to intercept the glideslope/localizer. Then, because of the violence of the input, the aircraft will overcorrect, effectively causing another violent jerk. Below is an example of both phenomena. You can clearly see that the aircraft is almost perfectly aligned with the glideslope and localizer, so there is no reason for the excessive jerking. It should also be noted that, as a result of the violent jerk, the aircraft missed the glideslope completely.
As Infinite Flight continues to rework and develop new aircraft, it is important that the APPR system is correctly programmed. Hopefully, this request will bring around the change that is needed, and persuade the developers to take another look at their current systems. I believe that it’s important to do something right the first time, so hopefully the developers will change this before future updates, rather than having to go back to fix the system post-release. I’d like to hear the community’s thoughts on this!