|The High Speed Quad
|Here is a short explanation of how a high-speed detachable
ski lift works.
The lift pictured below is the Thunderhead Express in
It was built by:
|This page is a flow chart of how a high-speed quad terminal
works. Follow down and click pictures for larger views.
|The chair rounds the station.
|A chair going down the line to the
|Here are the black wheels talked about
earlier. They provide the motion for the
chair when it isn't on the cable. Notice
the derailer is in the down position.
|The chair enters the derailer. Notice
how the black arm stabilizes the chair.
|The black metal strip derails the chair
while the black wheels slow down the
chair until the unloading speed is
|Sensors ensure that the grip is properly
attached on the cable.
|A chair in the base terminal slowed
down to the loading speed.
|Here are brittle bars or sensors that
would stop the lift in the event of a
|If a chair needs to be repaired it can be
removed here and left on this rail.
|And off goes the chair!
|Doppelmayr chairs consist of two
major parts connected where the chair
number is located above.
|Doppelmayr high-speed lift
|High-speed lifts are sometimes built with rails (shown in the picture to the top right) so
the chairs can be removed in the summer or for maintenance.
|Here is a quad chair with covers.
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|The chair begins to accelerate to leave