Questions tagged [yaw-damper]

A device connected to the rudder of many larger airplanes which artificially damps out the airplane's Dutch-roll motion using small rudder inputs, helping to keep the crew and passengers from becoming airsick.

Filter by
Sorted by
Tagged with
5
votes
3answers
272 views

Why is the 707’s yaw-damper-out lateral controllability marginal to nonexistent with flaps and spoilers extended?

According to the NTSB report on the 1973 crash of Pan Am Flight 160, the 707-300C1 has lateral controllability characteristics ranging from “minimal” to “none” if the flaps and spoilers are extended ...
7
votes
2answers
371 views

How can I switch off the yaw damper in an Airbus A350?

How can I switch off the yaw damper in an Airbus A350? In the A320, this can be done by switching off the FAC, but the A350 doesn't have a FAC switch; it has prim and sec instead of FAC and ELAC.
2
votes
3answers
2k views

Is there a specific relation between sideslip angle and yaw rate OR how sideslip angle depend on yaw rate?

Since, yaw rate is controlled via rudder and sideslip angle can also be controlled by rudder, I want to know if there is any dependence of sideslip angle on yaw rate in fly by wire aircraft as I am ...
4
votes
1answer
2k views

Does the yaw damper require manual activation on modern airliners?

Modern commercial aircraft are equipped with yaw dampers. This post explains the feature. Now I was wondering if there is a button to manually activate and deactivate it (e.g., on a Boeing 787) or if ...
4
votes
2answers
1k views

Can light aircraft be equipped with yaw damper?

The smallest aircraft I know of that has a yaw damper is the Pilatus PC-12. From an engineering standpoint, how hard is it to make a light-weight solution for a light single engine plane? The system ...
17
votes
2answers
45k views

What is the “yaw damper”?

Some airplanes have a button for the "yaw damper." What is the yaw damper? When is it used? Is it ever required for certification or operation? How does it work?