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Boeing 737 Unable to Trim!! Cockpit video (Full flight sim)

Mentour Pilot · demo · Watch on YouTube

Aviation & aerospace engineering

What it is

Mentour Pilot, a 737 captain, demonstrates in a full flight simulator why a Boeing 737 can become impossible to trim manually at high speed. He explains the jackscrew forces and the roller-coaster manoeuvre.

Why Hacker News recommends it

HN pointed to it during the 737 MAX discussions to show how hard manual trim is when severely out of trim.

  • 3 people recommended it
  • 2 different months
  • 0 strong recommendations
  • first 2019, last 2022

What HN commenters said

  1. “this simulator video shows both how the 737 horizontal stabilizer is controlled”

    Shows forces on trim wheel when severely out of trim.

    janoc, 2019-05 · Recommendation · in “Ethiopian Max Crash Simulator Scenario Stuns Pilots”

  2. “I'd highly recommend Mentour Pilot's videos on the subject”

    Zancarius, 2019-05 · Recommendation · in “Long Before Boeing 737 Max Crash, Ethiopian Air Pilot Warned of Dangers”

  3. “I had no idea how bad it can actually get”

    Reveals how bad manual trim can get.

    jcalvinowens, 2022-02 · Recommendation · in “How the Boeing 737 Max disaster looks to a software developer (2019)”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: boeing 737, 737 max, mcas, flight simulator, stabilizer trim

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