Cable skiing...
Is a way to water ski (or wakeboard), in which the skier's rope and handle
are pulled by an electrically-driven cable, whereas traditionally a waterskier
is pulled by a motorboat. The mechanism consists of two cables running
parallel to one another with carriers between them every 80 metres. The
carriers are metal tubes that can hook up tow ropes with riders. Tow ropes
are detached and attached at the same time without slowing the system
down, which is a main reason for its high efficiency. With a main cable of
800 metres long, 10 riders can waterski or wakeboard at the same time.
The speed of the main cable can be up to 38 mph (61 km/h), and slalom
skiers can reach much higher speeds. The most common speed is 19 mph
(31 km/h), which suits wakeboarders best.
The cable is generally suspended 26–30 feet (8–9 metres) above the
water. This makes for a different feel than when riding behind a boat,
whether wakeboarding or water skiing.
The higher angle of pull makes bigger "air" and sharper turns possible.
Generally, on wakeboard-only cables, there are ramps and sliders for the
riders to use.
Another way for wakeboarders to get air on the cable is to "load the line."
Loading the line is putting tension on the rope and using the water as a
spring to fling oneself into the air. Though it is possible to do this behind a
boat, the higher angle of pull and the slight jerk on the corners allow good
riders to get much higher. Other important advantages of the cable
compared to the boat are environmental friendliness and the enormous
capacity. The electric motor of the cable is quiet, clean and energy-efficient.
A cableway with a main cable 800 metres long operated at 19 mph (31 km/
h) makes 38.8 rounds in one hour (456 miles per day if used round the
clock) and the users get 19 miles (31 km) of water skiing or wake boarding
in that hour.