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by Gabriel
Wed Mar 27, 2024 7:57 pm
Forum: Off Topic Forum
Topic: THERE HAS BEEN A NEAR TOTAL SHIP-BRIDGE DISASTER!!!!!!
Replies: 17
Views: 71

Re: THERE HAS BEEN A NEAR TOTAL SHIP-BRIDGE DISASTER!!!!!!

Bridges have been killing people for much longer than airplanes.

https://en.wikipedia.org/wiki/List_of_bridge_failures

Not_karl, please don't ever talk about banning planes again until you accomplished banning all bridges first.
by Gabriel
Wed Mar 27, 2024 2:57 pm
Forum: Off Topic Forum
Topic: THERE HAS BEEN A NEAR TOTAL SHIP-BRIDGE DISASTER!!!!!!
Replies: 17
Views: 71

Re: THERE HAS BEEN A NEAR TOTAL SHIP-BRIDGE DISASTER!!!!!!

Yeah, Tampa in the 80's, just googled it. That and a bunch of others: https://www.nbcwashington.com/news/local/a-list-of-major-us-bridge-collapses-caused-by-ships-and-barges/3575959/ Oh, I remember this one: Mobile, Alabama: 1993 Sept. 22, 1993: Barges being pushed by a towboat in dense fog hit and...
by Gabriel
Wed Mar 27, 2024 1:21 am
Forum: Off Topic Forum
Topic: THERE HAS BEEN A NEAR TOTAL SHIP-BRIDGE DISASTER!!!!!!
Replies: 17
Views: 71

Re: THERE HAS BEEN A NEAR TOTAL SHIP-BRIDGE DISASTER!!!!!!

I have been asking myself this question since I first saw the video early this morning. How come that the bridge doesn't have those reinforced concrete fences in front of the main pylons? Especially such an important bridge in such an important port that has so much traffic of so many huge ships. Th...
by Gabriel
Tue Mar 26, 2024 7:31 pm
Forum: Off Topic Forum
Topic: F.A.O.: 3WE
Replies: 1029
Views: 236571

Re: F.A.O.: 3WE

That's not me. I never looked like Donald Trump.
by Gabriel
Tue Mar 26, 2024 4:44 pm
Forum: Off Topic Forum
Topic: F.A.O.: 3WE
Replies: 1029
Views: 236571

Re: F.A.O.: 3WE

IMG_0594.jpeg
I want one!
by Gabriel
Tue Mar 26, 2024 4:41 pm
Forum: Aviation Discussion Forum
Topic: This alternate-units stuff is getting out of hand...
Replies: 15
Views: 826

Re: This alternate-units stuff is getting out of hand...

I took this screenshot a long time ago and forgot to post it.
Screenshot_2023-06-13-18-13-02.jpg
(About 16,000,000 Corgis)
Corgi² maybe.
by Gabriel
Sun Mar 24, 2024 3:50 pm
Forum: Off Topic Forum
Topic: Airyplany pix
Replies: 3
Views: 45

Re: Airyplany pix

The passenger twin-engine plane featured in picture 2 (and subsequent pictures cluttered with the hands of an ape) is definitively some old DC-9. The fighter jet whose tail is seen above a piston engine, and subsequent pictures show more in full, is I think an F-5, but al earlier version, since late...
by Gabriel
Fri Mar 15, 2024 6:31 pm
Forum: Aviation Discussion Forum
Topic: 787 troubles, the latest news..
Replies: 1103
Views: 391245

Re: Guarded switches

It’s a completely different kind of MCAS, altogether.
It’s a completely different kind of MCAS :?
by Gabriel
Fri Mar 15, 2024 2:48 pm
Forum: Aviation Discussion Forum
Topic: 787 troubles, the latest news..
Replies: 1103
Views: 391245

Re: 787 troubles, the latest news..

One thing puzzles me about this though... I can see even a guarded switch being accidentally bumped and actuated. But it seems like for this incident to happen, the switch would have to be not only bumped, but held for a period of time. Do we think that's plausible? I thought the same. Either that ...
by Gabriel
Thu Mar 14, 2024 11:41 pm
Forum: Aviation Discussion Forum
Topic: The Chinese built my perfect airplane...
Replies: 9
Views: 108

Re: The Chinese built my perfect airplane...

Carnot has left the chat.
by Gabriel
Thu Mar 14, 2024 11:39 pm
Forum: Aviation Discussion Forum
Topic: What is it with Alaska Airlines?
Replies: 6
Views: 62

Re: What is it with Alaska Airlines?

Of course the article is illustrated with the photo of a building with a huge BOEING sign because, why not? Also from the article: Jones allowed law enforcement to search his luggage, where agents found "multiple notebooks with writings describing how to operate an aircraft, including take-off,...
by Gabriel
Sat Mar 09, 2024 8:15 pm
Forum: Off Topic Forum
Topic: Railroad Thread
Replies: 493
Views: 199610

Re: Railroad Thread

Unrelated but possibly interesting: I wonder if I went out on the highway, got my car up to exactly 60 MPH, then put it in neutral and let off the gas without touching the brake pedal, would it stop in under a mile? Fixed. Leaving the shift in D will cause it to decelerate faster yet in the beginni...
by Gabriel
Sat Mar 09, 2024 8:04 pm
Forum: Off Topic Forum
Topic: Railroad Thread
Replies: 493
Views: 199610

Re: Railroad Thread

Gabriel’s wonder at the crappy braking is at least somewhat fueled by “this is how it is”.
Maybe my very first sentence on this topic gave that up?
I have been always amazed about how bad trains brake, and I don't understand why.
by Gabriel
Sat Mar 09, 2024 6:00 am
Forum: Off Topic Forum
Topic: Railroad Thread
Replies: 493
Views: 199610

Re: Math….

I'll take crack
You do you.

Both of you are right, elaw and ChatGPT.
by Gabriel
Sat Mar 09, 2024 1:34 am
Forum: Off Topic Forum
Topic: Railroad Thread
Replies: 493
Views: 199610

Re: Math….

Ass-uming constant deceleration, what is the deceleration rate of a train that takes a mile to go 60 to zero.

Don’t tell me, I’m going to ask ChatGPT
Ok!
by Gabriel
Sat Mar 09, 2024 12:41 am
Forum: Off Topic Forum
Topic: Railroad Thread
Replies: 493
Views: 199610

Re: Railroad Thread

While I go grab some popcorn, I'll leave this here: https://www.law.cornell.edu/cfr/text/49/232.103 Great!!! There are the train brake performance specs!!!! Except as otherwise provided in this part, all equipment used in freight or other non-passenger trains must, at a minimum, meet the Associatio...
by Gabriel
Sat Mar 09, 2024 12:27 am
Forum: Off Topic Forum
Topic: Railroad Thread
Replies: 493
Views: 199610

Re: Railroad Thread

While I go grab some popcorn, I'll leave this here: https://www.law.cornell.edu/cfr/text/49/232.103 For what it's worth (approximately zero), around 1,000 years ago when I worked as a mechanic I used to do the annual automotive inspections required by my state. The law required, and we possessed, w...
by Gabriel
Fri Mar 08, 2024 10:53 pm
Forum: Off Topic Forum
Topic: Railroad Thread
Replies: 493
Views: 199610

Re: Brake summary

In the derailment + collision, I am betting that the brakes on both trains performed within approved ranges, thus no need for the “further analysis” you’d like to see. If not_you doesn't do the analysis, how does not_you know that they performed within approved ranges? The analysis can be as short ...
by Gabriel
Fri Mar 08, 2024 10:02 pm
Forum: Off Topic Forum
Topic: Railroad Thread
Replies: 493
Views: 199610

Re: Railroad Thread

It's a pity that the NTSB did not analyze why these trains' braking was so poor.
by Gabriel
Fri Mar 08, 2024 6:16 pm
Forum: Off Topic Forum
Topic: Railroad Thread
Replies: 493
Views: 199610

Re: Brake summary

Anyway, dynamic braking or not, non-locomotive cars are surely still fitted with brakes, right? RIGHT? The general discussion is braking & effectiveness. That may be YOUR general discussion. Not mine. The whole train brakes in emergency is fairly effective by my adjectives- What are your adject...
by Gabriel
Fri Mar 08, 2024 6:12 pm
Forum: Off Topic Forum
Topic: Railroad Thread
Replies: 493
Views: 199610

Re: Railroad Thread

Something I thought of re braking... take a look at this (what I think is typical for the USA) attachment of a railroad rail to a tie: https://upload.wikimedia.org/wikipedia/commons/0/07/Dogspike-on-wooden.jpg The rail is restrained vertically by lying on the tie (downward) and the spike (upward, i...
by Gabriel
Fri Mar 08, 2024 5:15 pm
Forum: Aviation Safety Discussion Forum
Topic: 737 Max troubles;:The latest news...
Replies: 181
Views: 43872

Re: 737 Max troubles;:The latest news...

It is interesting / depressing (but kind of understandable) how anything that happens in a Boeing plane these days become newsworthy. At the same time, it is not surprising since the media is so crazy to make aviation catastrophe news where there are none. Like: A mother of two from Indiana , Stefan...
by Gabriel
Fri Mar 08, 2024 5:03 pm
Forum: Aviation Safety Discussion Forum
Topic: 737 Max troubles;:The latest news...
Replies: 181
Views: 43872

Re: It's not a good day to be a 737...

https://www.aviation24.be/airlines/united-airlines/boeing-737-max-8-suffers-left-main-gear-collapse-during-landing-houston-airport/ Meh. https://www.koin.com/news/alaska-airlines-safety-concerns-cargo-door-pictures-portland/ :o :o :o :shock: :shock: :shock: Most likely not Boeing's fault. This door...
by Gabriel
Fri Mar 08, 2024 2:04 pm
Forum: Off Topic Forum
Topic: Railroad Thread
Replies: 493
Views: 199610

Re: Railroad Thread

There was a classic runaway train Swiss cheese automation fueled derailment in CA. First, the dispatcher didn’t know what he was doing, fudged on car weights and maybe even sent the train without enough locomotives. The train had front and rear locomotives- not_electronically linked, but crews and ...

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