dear mohandes,

How about a traversing cable winch?

Have a nice day

Teus ■

Please have a look at

http://www.heylpatterson.com/railbargemovers.aspx

Reinhard Wohlbier

Administrator

https://who.bulk-online.com/discussi...-wohlbier.html ■

Dear mohandes,

Looking at the link, which Mr Wohlbier gave, it is well possible to move a train by wire rope.

http://www.heylpatterson.com/railbargemovers.aspx

But, if we estimate the required force as follows:

Train = 7200 tons

Wheel friction = 0.02, giving 0.02*7200 = 144 tons pulling force.

If the wheel/rail friction factor is 0.2, then a locomotive mass of 144/0.2= 720 tons is required (or 2 locomotives of 360 tons)

A steel wire should have a safety factor of approx. 5 against breaking.

For a working force of 144 tons, the minimum breaking force is then 5*144 = 720 tons

When one sheave is applied, then the minimum breaking strength is approx. 360 tons.

This should result in a steel wire of approx. 3”.

It is worthwhile to contact Heyl & Patterson

Take care

Teus

I remember that we installed a winch at the end of a track to move 40 grain railway wagons for loading.

There was a wire running over the railway sleepers, connected to the train and pulling the train forth and back.

One of the first remote radio controls was installed to have the train moving.

In the port of Rotterdam, there were also a lot of cranes and other equipment changing to radio remote controls and then it could happen that our train started to move, because the coal and ore terminal next to our terminal decided to hoist a grab.

Result: a lot of swearing and meetings. ■