Gondola cable snaps

[The AD]

Also, while it isn’t advisable, isn’t standing right at the fail point of a cable under tension, theoretically and relatively, a safe place to be?

That's what I would think. It would certainly be terrifying, but you've got to think someone who would do this is a little cuckoo to begin with.

[Timberridge]

Has anyone suggested a military jet yet?

There's precedent.

So far, we have:
1) Tannerite in a clay flower pot
2) Porcupine
3) Squirrel
4) Dewalt angle grinder
5) Fat Americans
6) Fat Americans + Wind
7) Canadian engineering
8) Russian lasers
9) Some combination of 1-8

[The AD]

10) Dogmen
11) Aliens

[anotherVTskibum]

For sure - and once it starts to really fail, you just duck and cover your head like a turtle and listen for the chaos to happen. We also can't assume whoever did such a thing is also smart enough to weigh the risks and take safety seriously.

I hope they figure out who did this, such crazy story.

Many people who are sufficienciently committed to a various ideologies throughout history have demonstrated a willingness to sacrifices themselves in the name of the greater good. I wouldn't discount too far the possibility that whomever was responsible decided to accept the risk.

I think it's also worth considering the possibility that the saboteur chose not to sever the cable, assuming that weakening it substantially would cause the next full loading or weather event to trigger a failure. I hope that's not the case, because it's even more terrifying, leaving in play the possibility that the saboteur was hoping to cause injuries or death, but if we're throwing out wild conjecture, I'd add that possibility to the list.

[Timberridge]

What about Australians?
You can't have nice things around those people.

[SB]

[AK47bp]

10) Dogmen
11) Aliens

12 )Didn’t someone mention it may have been shot with a gun?

I’d also like to add Squatch vandalism. This is Prime Squatch country and those guys are known to not like people in their territory. Hopefully authorities are looking into this too.


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[pureantigravity]

PG, just curious, but, why the boner over this? Perhaps we should just wait a day or two for more info to be released..

A day or two, you say?
How long do you think it will be before more details are available?
What's your best guesstimation?

[Norseman]

Has anyone suggested a military jet yet?

There's precedent.

So far, we have:
1) Tannerite in a clay flower pot
2) Porcupine
3) Squirrel
4) Dewalt angle grinder
5) Fat Americans
6) Fat Americans + Wind
7) Canadian engineering
8) Russian lasers
9) Some combination of 1-8

10) Dogmen
11) Aliens

Dogmen = Jaws from Bond? Or another type?

What about Australians?
You can't have nice things around those people.

12 )Didn’t someone mention it may have been shot with a gun?

I’d also like to add Squatch vandalism. This is Prime Squatch country and those guys are known to not like people in their territory. Hopefully authorities are looking into this too.


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best add puregravity to the list, guy seems nervous

[Timberridge]

best add puregravity to the list, guy seems nervous

Is he Australian?

[pureantigravity]

Dogmen = Jaws from Bond? Or another type?best add puregravity to the list, guy seems nervous

Just wait till I start posting AFTER my morning coffee

The video of the 76 mm breakage test is pretty interesting. Here is one of a 2" in a test break - closer to the 55 mm one used by the gondola. Seems more sudden.

"Max Load that this wire held was 482523 lbs."

[El Chupacabra]

Is he Australian?

He could be Australien

[pureantigravity]

Incidentally, here is data on a 2" steel rope:

https://www.engineeringtoolbox.com/w...th-d_1518.html

[SumJongGuy]

Dogmen = Jaws from Bond? Or another type?best add puregravity to the list, guy seems nervous

Yep

[AK47bp]

Boeing may have a hand in this.




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[east or bust]

A day or two, you say?
How long do you think it will be before more details are available?
What's your best guesstimation?

To be honest man I really couldn’t care less. As others have stated it shouldn’t be difficult for someone to look at the cable and determine what the mode of failure was. So yea, maybe a few more days until we get an official press release?

I didn’t cut the cable, but if I did... cutting it at the lift tower between the guide wheels would be far and away the safest place, as it can theoretically only go out and up. I’d start with a 1/2-3/4” cut on top of the cable, still leaving enough of the cable intact to support the load while taking the most critical strands out. Then finish it with a cut from the bottom up. And my guess would be you’d have enough time from the moment it’d start to go to get at least a few feet away if not completely down the tower with a bit of hustle.

[Timberridge]

He could be Australien

Or autistic. They tend to have myopic focus. Dinosaurs, steel rope, etc.

[Rock Knocker]

.......but if I did... cutting it at the lift tower between the guide wheels would be far and away the safest place, as it can theoretically only go out and up. I’d start with a 1/2-3/4” cut on top of the cable, still leaving enough of the cable intact to support the load while taking the most critical strands out. Then finish it with a cut from the bottom up. And my guess would be you’d have enough time from the moment it’d start to go to get at least a few feet away if not completely down the tower with a bit of hustle.

When a wire rope breaks, the final partings can be on either side of the initial parting, within a lay or two of that spot.

[pfluffenmeister]

https://youtu.be/LRKN8DCYyrE

Crazy video of aircraft carrier wire breaking.

Fuck. Airman jumps over the broken cable not once, but twice.

[pureantigravity]

Or autistic. They tend to have myopic focus. Dinosaurs, steel rope, etc.

what an asshole comment.

[pureantigravity]

They estimated that they would have 200,000 to 300,00 rides per year.

http://www.vancouversun.com/health/G...801/story.html

Immediately after opening, in summer 2014, they say they exceeded that by 40%.
So ... about 350,000 rides per year.

Assuming that they all pay the window price of $49.95 (today's ticket prices), that's
$17,482,500 per year revenue.

plus concession sales, event fees, etc etc.
plus No costs for patrol staff, grooming equipment, snow-making.
plus Can do it with minimal parking since a lot of tourism buses deliver patrons.

It doesn't matter what the cause, even if they have to rebuild the entire thing
- they are printing money.

$17M per year.

I'd wager that based on current traffic, they probably exceeded it by 100%
So conservative figures.

[k2skier112]

what an asshole comment.

This is what I thought of most your posts so far, careful, meth is a mighty powerful drug

[pureantigravity]

This is what I thought of most your posts so far, careful, meth is a mighty powerful drug

Care to elaborate?
I'd like to see the ones you claim to have such an opinion of.
Please.
Can't remember ever making fun of, or stereotyping, autistic people.
I'd hate to say that others make asshole comments when I do the same.
Not that I'm incapable of such.

[pureantigravity]

https://nationalpost.com/news/canada...extreme-danger

The cable, he said, is roughly 52 millimetres in diameter and made up of a solid plastic core surrounded by six strands, each consisting of 25 twisted steel wires.

Spichtig said the perpetrator probably just needed to make a partial cut — perhaps using a cutting torch or mechanized cutting wheel — before physics took over and separated the rest of the cable.

“Probably cut two-thirds and it’ll snap,” he said.

~Franz Spichtig, owner of Rigging Specialties of Canmore, Alta.

So much for 8 times over strength.
More like 3 times.

In as much as it is rare to have a cable break, it is just as rare to have one vandalised.
Of the known ropeway incidents world-wide, covering also very popular ropeway tourism venues, it is just as rare to have someone choose to cut the cable.

I thought the Sea To Sky gondola was very well received and liked. I'm actually surprised that people think someone dislikes it *that* much. Globally, there has to be similar installations, in areas with poor policing, in areas with much more zealous opponents, that still have never had such an incident to a cable system.

Reaching for the malice conclusion isn't going to pan-out probabilitywise any more likely than the chance that a bonafide cable/system issue occurred.

This does echo of Boeing tho. Everyone was like, "that is just a freak and never happens. Don't you know how safe they make these things. The engineers know what they are doing .." Economic interests tend to trump engineering sense.

[The AD]

https://nationalpost.com/news/canada...extreme-danger


~Franz Spichtig, owner of Rigging Specialties of Canmore, Alta.

So much for 8 times over strength.
More like 3 times.

This is in conflict with the table you posted earlier. 2/3 of 2" is 4/3", so only 2/3" remaining wire. Your table says this will snap around 40 kips as opposed to 320 for the 2" rope.