cable transportation











That first jump off the branch

A perfectly human experience



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The time it takes a pulley to roll down a cable in seconds = T.



formula

ELEVATION CHANGE
CABLE LENGTH
AVERAGE SPEED
TRAVEL TIME
33 METERS
1 KILOMETER
46 KM/HR
79 SEC
60 METERS
2 KILOMETERS
62 KM/HR
116 SEC
160 METERS
5 KILOMETERS
101 KM/HR
178 SEC


Acceleration due to gravity is constant and does not depend on the mass. The formula does not consider friction, wind resistance, or cable sag. 

Technical information regarding wire rope may be found at
Loos & Company.





"A stiff 1 x 19 Cable made of type 316 Stainless Steel would be your best
bet. It has excellent corrosion resistance, very good abrasion resistance
and stretches very little compared to let's say a 7x19 cable.
It's the same cable that is used in sailboat rigging. This cable is also
used on telecom towers for the workers to hook onto while they are doing
work as part of the fall arrest system. It should last many. many years.
Quite a bit of sag can be removed if the end terminations are adjustable.
Threaded studs would be a good choice because they can be tightened up as
time goes by."

                                                                                
                                                    -   Michael Wallace     V.P. Sales
                                                         Loos & Co., Inc.                                                     











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