How do I determine lifting force

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To determine the lifting force of a motor through a gear reduction to a block and tackle assembly, first calculate the drum's rotational force using the motor's torque and gear reduction ratio. The torque of 16,000 N-M divided by the gear reduction of 7.51 gives the effective torque at the drum. With a drum diameter of 1 meter, the circumference can be used to find the linear force exerted by the rope. Finally, considering the 10 lines in the block and tackle assembly, the total lifting force can be calculated by multiplying the effective force by the number of lines, yielding the maximum weight the system can lift.
wzrdstrm
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Gentlemen please.
I am trying to find out how much a motor can lift through a gear reduction to a drum connected a block and tackle assembly.
The motor can develop 16K N-M of torque, through a gear reduction of 7.51, turning a drum having a diameter of 1 meter, using 0.0508 meter rope. there are 10 lines in the block and tackle assembly ( 5 stationery upper sheaves and 5 lower moving sheaves).
How do I calculate how much wieght this will lift?
 
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Assuming no losses due to efficiency :)
 

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