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Preliminary report into Air India crash released

(www.bbc.co.uk)
299 points cjr | 2 comments | 11 Jul 25 20:23 UTC | HN request time: 0s | source
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bob1029 ◴[11 Jul 25 21:33 UTC] No.44536975[source]▶
> The EGT was observed to be rising for both engines indicating relight. Engine 1’s core deceleration stopped, reversed and started to progress to recovery. Engine 2 was able to relight but could not arrest core speed deceleration and re-introduced fuel repeatedly to increase core speed acceleration and recovery.

I know it's probably not worth the hazmat tradeoff for such a rare event, but the F-16 has an EPU powered by hydrazine that can spool up in about a second.

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SJC_Hacker ◴[12 Jul 25 02:16 UTC] No.44538748[source]▶
The only solution I can think of is emergency parachutes. Like lots of them. would also be useful for other types of in air engine/control failures.

At least it worked for me on Kerbal Space Program. At least sometimes.

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1. maxbond ◴[12 Jul 25 02:34 UTC] No.44538820[source]▶
There's precedent.

https://www.youtube.com/watch?v=2_8qCTAjsDg [30s]

https://www.youtube.com/watch?v=zT58pzY41wA [15m]

The Cirrus system is deployed by rockets, allowing it to function at a very low altitude. They say that you should deploy it no matter what altitude you are at, and it will add at least some friction. The system has a very impressive track record.

However, at this altitude, with an airplane this heavy, you might have to put the rockets on the plane to decelerate enough to save lives.

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2. burnt-resistor ◴[12 Jul 25 04:12 UTC] No.44539238[source]▶
This is for a tiny aircraft, not a jumbo jet. SF50 and the Honda Jet can autoland too.

Edit: I recently saw an SF50 YT video. It's pretty awesome with the V/X tail.