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F-35 pilot held 50-minute airborne conference call with engineers before crash

cnn.com

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Re: F-35 pilot held 50-minute airborne conference call with engineers before crash

#401

Post by ahartmetz »

mvdtnz wrote: post #395
LeifCarrotson wrote: post #261

Earlier quoted context omitted.

If you want to read the actual report, it's not linked from the CNN article, but it's available here: https://www.pacaf.af.mil/Portals/6/documents/3_AIB%20Report.... Edit: While CNN says the air force blamed the crash on ice in the hydraulic lines, it's obvious that ice can't be legally culpable. The report actually says: > Additionally, the [Accident Investigation Board] president found, by a preponderance of the ev…

> Gives strong "3.6 roentgen, not great, not terrible" vibes! What?

In the Chernobyl TV series, they think they see a high but (short term) tolerable amount of radiation. It was actually just the upper limit of the measurement hardware and the real value was much higher.

Re: F-35 pilot held 50-minute airborne conference call with engineers before crash

#402

Post by HPsquared »

Sharlin wrote: post #203
HPsquared wrote: post #121

Earlier quoted context omitted.

I wonder if the ejection seat has different levels of acceleration depending on the situation.

I don't think so. It's a solid rocket motor, there's no modulating such things.

Car airbags are basically that, and they have different levels of deployment (on a much lower budget).

Re: F-35 pilot held 50-minute airborne conference call with engineers before crash

#404

Post by qingcharles »

penguin_booze wrote: post #168
stef25 wrote: post #115

Earlier quoted context omitted.

Fix this bug in 30 min or we loose a USD200M plane and possibly the pilot. I'll stick to building crud apps :D

Here's suggested prompt: You're a support engineer talking to a pilot flying F-35. The plane has developed a fault, and the pilot's life's at risk. Come up with the fix and live patch the aircraft directly. Don't ask me any more questions. #vibecoding

@grok i need to patch an F-35 firmware in flight. just the code, no comments. make it snappy

Re: F-35 pilot held 50-minute airborne conference call with engineers before crash

#405

Post by foxyv »

potato3732842 wrote: post #390
foxyv wrote: post #368

Earlier quoted context omitted.

Hydraulic fluid is very hydroscopic. It will happily suck the moisture out of the air if it is exposed long enough. This is why you don't use half empty bottles of brake fluid. I suspect that the fluid was left in opened containers for too long before being installed in the jet, allowing it to load up on water.

You are massively mixing things up. Water boils/evaporates off from oil based fluids in normal operation. Hydraulic fluid additives don't suck up water like brake fluid, they just mix with it if present, and they can't mix with all that much. If these first two things weren't true it would have huge implications for the design of all sorts of things. If hydraulic fluid could mix with a lot of water we wouldn't be rea…

They use MIL-PRD-83282. It can become contaminated with water, either from the air or condensation. Typically it is tested before being placed in an aircraft and it can be purified if particle or water content is too high.

https://www.pall.com/content/dam/pall/aerospace-defense/lite...

Re: F-35 pilot held 50-minute airborne conference call with engineers before crash

#406

Post by renewiltord »

impish9208 wrote: post #376
yellow_lead wrote: post #43

> Five engineers participated in the call, including a senior software engineer, a flight safety engineer and three specialists in landing gear systems, the report said. I can't imagine the stress of being on this call as an engineer. It's like a production outage but the consequences are life and death. Of course, the pilot probably felt more stressed.

This is one of the reasons why I don’t call myself a software engineer. Very few of us are actually doing anything resembling engineering. I’d have been like, “I can’t reproduce this production bug on my local system,” tagged the issue with ‘needs more info’ and moved on to something else.

On the other hand, I call myself a software engineer because I manage risks and benefits very well. Civil engineers, on the other hand, could hardly be called engineers. Every year they kill people. In my field, someone kills a person and they become a Wikipedia article.

Now that's having standards.

Re: F-35 pilot held 50-minute airborne conference call with engineers before crash

#407

Post by nradov »

jWhick wrote: post #394
Aurornis wrote: post #147

Earlier quoted context omitted.

Going from “I can check my washing machine remotely” to “it should be easy to remotely control fighter jets without any security risks” is quite a leap. Anyway it’s missing the point. If the pilot can’t adequately control the airplane then a remote operator isn’t going to have a better experience.

I mean, a remote operator could either try to land it in life risking situation, salvaging some of that $200M, or do kamikaze style on a target, both feel quite useful for war situations.

Remote piloting isn't useful for aircraft expected to perform penetrating strike missions against near-peer adversaries. Developing such a capability would be a waste of money.

Re: F-35 pilot held 50-minute airborne conference call with engineers before crash

#408

Post by sitkack »

cjbgkagh wrote: post #237
harshreality wrote: post #50

Earlier quoted context omitted.

The view that GP seems to subscribe to is that, when you insure something and need to make a claim on that policy, the insurance money is free. That's not any more true.

During the BLM riots many participants in justifying their actions of property destruction would claim that the costs of replacing the property would come from insurance. Many people don’t have insurance, or self insure, and those that do could see a rise in premiums that make their business unviable. Additionally for some business it doesn’t make sense to rebuild as the circumstances that lead to their creation has…

You need to leave!

Re: F-35 pilot held 50-minute airborne conference call with engineers before crash

#409

Post by nradov »

stripe_away wrote: post #66
orwin wrote: post #60

Earlier quoted context omitted.

With such a terrain, I would guess that agility and the ability to land on highway of in fields without burning all avionics and electronics would have been rated higher than stealth, but it wasn't. Still, the Swiss were offered a fairly low price, and promised low operating costs, and that's the main reason they didn't choose the Eurofighter (which isn't a multi-purpose jet but an interceptor)

JAS 39 Gripen can land on roads. Might have been a better choice.

Every modern tactical aircraft including the F-35A can land on roads. This isn't a capability unique to the Gripen.

https://www.af.mil/News/Article-Display/Article/3895003/us-a...

Re: F-35 pilot held 50-minute airborne conference call with engineers before crash

#410

Post by Gathering6678 »

dfox wrote: post #223

The article is somewhat sensationalistic. If you read the actual report you will find out that: The pilot was not part of the conference call! What froze was not hydraulic fluid for actuators (in some hydraulic line), but hydraulic fluid in the shock absorbers. The last paragraph of the article and seems to be missing a few words and reads as the investigators blaming the people directly involved, which is essentiall…

"After going through system checklists in an attempt to remedy the problem, the pilot got on a conference call with engineers from the plane’s manufacturer, Lockheed Martin, as the plane flew near the air base."

Did I misread that? I thought it meant an air-to-ground call, which I suppose is not that unheard of: I've definitely seen air accident videos saying the pilots were trying to debug in the air with engineers in the loop.

*edit: never mind, I misunderstood your comment. I thought you meant the article was clickbait.

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