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Local article on the Snowbird Tram cable replacement this spring


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#21 liftmech

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Posted 08 May 2016 - 03:31 PM

Of course the weather's crappy, you're doing a major outdoor project ;). Be safe out there.
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#22 teachme

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Posted 09 May 2016 - 08:32 AM

Two questions;

1) I had always assumed track cables were quite stiff. How stiff compared to a haul rope are they?

2) How much does a track cable cost compared to a haul rope? (assuming similar diameter and total length)

Thanks

#23 monkey

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Posted 11 May 2016 - 07:38 PM

Yes, track ropes are quite rigid when compared to a haul rope of the same diameter. Then again they are two different animals.
The cost for these four rope with freight was 1.5 million that excludes installation. One of the ropes does contain fiber optics so this added some to the cost, but not much in the grand scheme. I am unsure of a cost comparison for 8 miles of 54mm 6x27 sorry. I would imagine one could get a whole lot of haul rope for that price though.
On a side note this has been a rough couple of days for us at the bird. The accident involving one of our lifties leaves a big hole in our hearts. This accident was unrelated to this project. Pepper was a good kid a constant source of humor.

#24 JSteigs

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Posted 12 May 2016 - 04:51 PM

Does the fiber optic act as a comm ine for the lift? (would code even allow that?). I realize there is probably current in the track, haul, or rescue rope for stops, but haven't heard of Fiber optic in a track rope before.

#25 JSteigs

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Posted 12 May 2016 - 05:06 PM

Does the fiber optic act as a comm ine for the lift? (would code even allow that?). I realize there is probably current in the track, haul, or rescue rope for stops, but haven't heard of Fiber optic in a track rope before.

#26 teachme

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Posted 13 May 2016 - 09:24 AM

Thanks Monkey (that sound so bad!),

I'm also interested in the question of current in the track and the role of the fiber?

My question about stiffness of the track cable made me also wonder how easy it is to spool it up on the spindles. It must be a large spool diameter to prevent damage to the cable?

Thanks and thoughts to your group on the loss...

TME

#27 monkey

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Posted 14 May 2016 - 08:26 PM

Currently the control signals are sent through the haul rope. The fiber will used for resort communications. The diameter of the drum on the spools is 2 meters, the diameter of the bollards and excess reals is 4 meters.
Spooling the rope onto the excess real is pretty smooth. Using a Hit Track with a rope wrapped around the real makes for an easy job. The real work is getting four wraps of rope off the excess real and on to the bollard. Talk about wrestling an anaconda with ten of your friends!

#28 monkey

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Posted 18 May 2016 - 06:16 PM

Almost to the halfway point! Today we rode cabin 1 on detensioned new ropes with no slack carriers, mind you no faster than 1.9 m/s. Tomorrow we will install slack carriers on cabin 1 side and release the counter weight. Then remove the slack carriers on cabin 2 side and move all the rigging to rope 3. The light at the end of the tunnel is visible!

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#29 monkey

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Posted 05 June 2016 - 05:42 PM

Nothing but clean up left! All ropes are strung all rigging removed and the Tram is up and running! We could not be more pleased, no more 80 hour work weeks. A week ahead of schedule and no accidents or mishaps, just some really sore and tired Guy's. This whole project was led by Red from Doppelmayr USA and his assistant Jordan, with help from George, Reto, Peter, and Anton of Rigging Specialities; and the Snowbird Tram Shop. This was an incredible learning experience for all involved and the young guy's that stepped it up, took some abuse "MacDougal!!" but did there jobs. Way to go! The watchers watched and the do'ers did.

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This post has been edited by monkey: 05 June 2016 - 05:45 PM


#30 CH3skier

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Posted 06 June 2016 - 06:13 AM

View Postmonkey, on 05 June 2016 - 05:42 PM, said:

Nothing but clean up left! All ropes are strung all rigging removed and the Tram is up and running! We could not be more pleased, no more 80 hour work weeks. A week ahead of schedule and no accidents or mishaps, just some really sore and tired Guy's. This whole project was led by Red from Doppelmayr USA and his assistant Jordan, with help from George, Reto, Peter, and Anton of Rigging Specialities; and the Snowbird Tram Shop. This was an incredible learning experience for all involved and the young guy's that stepped it up, took some abuse "MacDougal!!" but did there jobs. Way to go! The watchers watched and the do'ers did.

Thanks for sharing your pics!!

#31 RibStaThiok

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Posted 06 June 2016 - 08:43 AM

Ditto, thank you for all the great info and updates. I am very pleased that things went well for you folks and it is always a bonus when you come out ahead of schedule. I hope you all get to enjoy a bit more R&R as a result. Again our thoughts and prayers are with you and the Snowbird family over the loss of your colleague awhile back.
Ryan

#32 liftmech

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Posted 07 June 2016 - 06:00 PM

Strong work, guys. That's an impressive project.
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