HackerTube / Video
Boeing 737NG horizontal stabilizer jackscrew cycle
Anders Cornelius Olesen
A short clip shows the horizontal stabilizer jackscrew of a Boeing 737NG cycling through its motion. It illustrates how pitch trim is physically adjusted.
HN used it during 737 Max crash discussions to show how the stabilizer trim works and why manual trimming takes time.
3 Hacker News mentions · 2018–2019