Mohawk's new triple

[Greg]

Pics here: http://www.mohawkmtn.com/CMX/?page_id=140

 

[bvibert]

I forgot they were getting a new lift. This one replaced the double to the top, with the lattice towers??

 

[Greg]

http://news.alpinezone.com/36771/

 

[WoodCore]

More pictures here.......http://www.snowjournal.com/page.php?cid=topic13573

 

[bvibert]

More pictures here.......http://www.snowjournal.com/page.php?cid=topic13573

Thanks for the additional pictures and info. I thought it looked like the top terminal was the drive, but it was hard to tell from Mohawk's pictures. It seems funny to have what appears to be a full CTEC drive terminal down on the bottom just to do the tensioning. It certainly looks like an interesting creation. I'll have to head over there at least once this season to check it out.

 

[Telemechanic]

I'm certain Mohawk's lift is top drive, Woodcore's pictures on Snowjournal include shots of the gear box and motors inside the wood framed gantry. Most of the structure in those old CTEC terminals, the two 'A' frames and two horizontal members, are there for the tensioning carriage. The only element necessary for driving the lift is the engine house and its contents. It does seem like a rare set up for this kind of lift.

 

[bvibert]

I'm certain Mohawk's lift is top drive, Woodcore's pictures on Snowjournal include shots of the gear box and motors inside the wood framed gantry. Most of the structure in those old CTEC terminals, the two 'A' frames and two horizontal members, are there for the tensioning carriage. The only element necessary for driving the lift is the engine house and its contents. It does seem like a rare set up for this kind of lift.

Yes, Woodcore's pictures cleared it up for me, what I meant was that the pictures from Mohawk that Greg linked too weren't clear. I also understand that the two A-frame structure is where the tensioning carriage rides, my point was that usually you have the drive terminal on that and a simple return wheel on the top. It's just kind of strange is all.

We have a CTEC triple at Sundown that was installed in '87 which has a very similar looking tensioning terminal that also houses the Primary Mover and APU, not to mention a bunch of electronics to control the safety circuits, in a steel structure on the tensioning carriage. The PM and Bullwheel look very similar to the ones in Woodcore's pictures from Mohawk.

 

[Telemechanic]

Yes, Woodcore's pictures cleared it up for me, what I meant was that the pictures from Mohawk that Greg linked too weren't clear. I also understand that the two A-frame structure is where the tensioning carriage rides, my point was that usually you have the drive terminal on that and a simple return wheel on the top. It's just kind of strange is all.

We have a CTEC triple at Sundown that was installed in '87 which has a very similar looking tensioning terminal that also houses the Primary Mover and APU, not to mention a bunch of electronics to control the safety circuits, in a steel structure on the tensioning carriage. The PM and Bullwheel look very similar to the ones in Woodcore's pictures from Mohawk.

I think its an unusual set up too. I work on two CTECs with this kind of tension / drive terminal at Loon where I'm a mechanic.

 

[bvibert]

Is there any advantage to putting the drive terminal at the top, on a stationary terminal? To me it seems better to have the drive terminal where it's easiest to get to in case of a problem, in most cases that's at the bottom.

IIRC the lift that this one replaces had the drive terminal on the bottom and a tensioning return terminal at top.

 

[WJenness]

Is there any advantage to putting the drive terminal at the top, on a stationary terminal? To me it seems better to have the drive terminal where it's easiest to get to in case of a problem, in most cases that's at the bottom.

IIRC the lift that this one replaces had the drive terminal on the bottom and a tensioning return terminal at top.

Drive terminals at the top are more efficient.

More efficient to "pull" the load up the hill vs. "pushing" it up.

-w

 

[Telemechanic]

Is there any advantage to putting the drive terminal at the top, on a stationary terminal? To me it seems better to have the drive terminal where it's easiest to get to in case of a problem, in most cases that's at the bottom.

IIRC the lift that this one replaces had the drive terminal on the bottom and a tensioning return terminal at top.

A top drive will require less horse power to drive a lift than a bottom drive so an operator can save money making a lift top driven. Other costs have to be weighed such as getting high voltage to the top of a lift versus the bottom. I believe it also requires less pulling force to put the tension unit at the bottom of a lift versus the top. In the case of detachables it is helpful to have the drive and tension at opposite terminals simply to make the terminals less crowded with machinery and easier to work on.

 

[WoodCore]

As a side note, The new triple will be Mohawk's third top station drive lift. The only two remaining bottom drive lifts are the Boulder Triple (1978 Hall) and the Nutmeg beginner chair (196? - Carlevaro-Savio w/ Partek Chairs).

 

[bvibert]

As a side note, The new triple will be Mohawk's third top station drive lift. The only two remaining bottom drive lifts are the Boulder Triple (1978 Hall) and the Nutmeg beginner chair (196? - Carlevaro-Savio w/ Partek Chairs).

Interesting, I did not know that. Thanks.

 

[WoodCore]

Update: 2008-10-05

Stopped by Mohawk today to check on the progress of the "nused" lift installation. Things are looking good! All of the towers, tower heads and sheaves have been installed since my last visit as well as the majority of infrastructure at both the base and summit terminals. Looks like their just about ready to string the cable.

On an interesting side note: The majority of the towers and sheaves appear to be of Thiokol descent but, the tower heads have been modified to resemble those on the 1977 Hall triple chair on the opposite side of the area. The remaining towers, especially on the upper 1000' of the lift have what appears to be brand new CTEC towers and tower heads??? Definitely one strange lift!!

Here's some pictures:

Enjoy!

 

[Glenn]

Very cool pics!

 

[bvibert]

Thanks for the updated pics!

 

[Greg]

Handome looking lift shacks.

 

[bvibert]

Handome looking lift shacks.

Yes they are cool looking, handsome even (if that's your cup of tea). I like the shack they built around the drive on the top the best.