Rich, take a ball attach it to the line and time the time it takes to travel the distance. Measure the distance then we can figure out feet/sec The reason being that resistance and motor windings will make a difference. Remember there are a few different motors out there.
And the new McCann winches at the Nats have a 2" drum.


RBurnoski wrote:
 Please read all the factors below before responding
For you math guys. Lets take the NATS/ LSF winches as an example. OK, first , line diameter may not be needed for this calculation but drum diameter would be . Im not sure of that exact drum diameter,,,,,,, ???? 3" ? If using a three inch diameter , lets keep it constant. I know the drum gets bigger when the line is stacked. But, you can figure it both ways if your having a slow day. The question is: What is the maximum miles per hour that the winch will go pulling a 4 lb to a 6 lb model ? One other factor Im giving you. Im not talking about launching using the normal arc up over the turnaround. Im talking about a parrallel to the ground, from winch toward the turnaround scenerio. Thanks in advanced, Richard Burnoski

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Jeff Steifel

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