3 ms·

> The theory is that you can only be below that during the takeoff roll and in case of a problem you have to abort the takeoff (close both throttles) to maintai

> The theory is that you can only be below that during the takeoff roll and in case of a problem you have to abort the takeoff (close both throttles) to maintain control. Or landing. A famous case is the death of Kara Hultgreen, who suffered a compressor stall and subsequent asymmetric thrust while trying to land a F-14 on an aircraft carrier. https://en.wikipedia.org/wiki/Kara_Hultgreen#Death https://en.wikipedia.org/wiki/Kara_Hultgreen#Death

chmod775 4y ago
Those cases are eerily similar in how both pilots immediately selected full afterburner before ultimately ejecting (or being ejected). Hultgreen just did not survive the ejection.
- hutrdvnj 4y ago
  From the Wikipedia article: > The radar intercept officer in the rear seat, Lt. Matthew Klemish, initiated ejection for himself and Hultgreen as soon as it was apparent the aircraft was becoming uncontrollable. First in the automated ejection sequence, Klemish survived. However, by the time Hultgreen's seat fired 0.4 seconds later, the plane had exceeded 90 degrees of roll, and she was ejected downward into the water, killing her instantly. It seems that she was just 0.4 seconds too late, otherwise she could have survived like Klemish.
  - chmod775 4y ago
    > It seems that she was just 0.4 seconds too late, otherwise she could have survived like Klemish. Well, the plane was. When either co-pilot or pilot ejects, the other is ejected as well shortly after (on pretty much all planes). The delay is likely there to make sure it goes smoothly.
    - LorenPechtel 4y ago
      Ejection motors are powerful. You don't want to eject into the fire of somebody else's rocket and since you have no guidance system a simultaneous ejection would just be asking for a collision. Thus a delay is necessary in a front/back situation. (You could build a system for side-by-side simultaneous ejection, design the seats to fly a little to the outside.)
t0mas88 4y ago
A yes, for fighter jets on a carrier that’s an issue because they have a high power setting while landing. For civilian aircraft the only high risk during landing is a single engine approach with a go around. You go from idle to full takeoff power, at low altitude and speed, creating serious yaw. It is a standard maneuver in recurrent training, but still in reality it would of course be a lot more stressful.
bedhead 4y ago
Unless I’m reading this incorrectly, it sounds like she simply got into a skid after trying to overcorrect on final. This is one of the BIG no-no’s in flying, it gets a lot of people killed every year. Sounds like skids were especially dangerous in a Tomcat since they disrupted airflow to the inside engine. I only read the Wiki but it sounds like pilot error. Sad either way.
nradov 4y ago
Retired naval aviator Ward Carroll did a deep analysis of the Kara Hultgreen mishap for anyone interested in the details. https://youtu.be/rFUXshaaMQM https://youtu.be/rFUXshaaMQM

chmod775 4y ago

Those cases are eerily similar in how both pilots immediately selected full afterburner before ultimately ejecting (or being ejected). Hultgreen just did not survive the ejection.

hutrdvnj 4y ago
From the Wikipedia article: > The radar intercept officer in the rear seat, Lt. Matthew Klemish, initiated ejection for himself and Hultgreen as soon as it was apparent the aircraft was becoming uncontrollable. First in the automated ejection sequence, Klemish survived. However, by the time Hultgreen's seat fired 0.4 seconds later, the plane had exceeded 90 degrees of roll, and she was ejected downward into the water, killing her instantly. It seems that she was just 0.4 seconds too late, otherwise she could have survived like Klemish.
- chmod775 4y ago
  > It seems that she was just 0.4 seconds too late, otherwise she could have survived like Klemish. Well, the plane was. When either co-pilot or pilot ejects, the other is ejected as well shortly after (on pretty much all planes). The delay is likely there to make sure it goes smoothly.
  - LorenPechtel 4y ago
    Ejection motors are powerful. You don't want to eject into the fire of somebody else's rocket and since you have no guidance system a simultaneous ejection would just be asking for a collision. Thus a delay is necessary in a front/back situation. (You could build a system for side-by-side simultaneous ejection, design the seats to fly a little to the outside.)

t0mas88 4y ago

A yes, for fighter jets on a carrier that’s an issue because they have a high power setting while landing. For civilian aircraft the only high risk during landing is a single engine approach with a go around. You go from idle to full takeoff power, at low altitude and speed, creating serious yaw. It is a standard maneuver in recurrent training, but still in reality it would of course be a lot more stressful.

bedhead 4y ago

Unless I’m reading this incorrectly, it sounds like she simply got into a skid after trying to overcorrect on final. This is one of the BIG no-no’s in flying, it gets a lot of people killed every year. Sounds like skids were especially dangerous in a Tomcat since they disrupted airflow to the inside engine. I only read the Wiki but it sounds like pilot error. Sad either way.

nradov 4y ago

Retired naval aviator Ward Carroll did a deep analysis of the Kara Hultgreen mishap for anyone interested in the details. https://youtu.be/rFUXshaaMQM https://youtu.be/rFUXshaaMQM