[TowerTalk] HF winch

[Mike Reublin NF4L]

Boy was I off on this one!

Mike NF4L

On Feb 3, 2014, at 9:19 AM, Mike Reublin NF4L <nf4l at comcast.net> wrote:

> Hi John,
> 
> I'm not an engineer, nor have I stayed at a Holiday Inn Express lately... ;-o} but I have seen one on TV.
> 
> The pull will at worst be at about a 45 degree angle, and using double pulleys effectively halves the load to about 600 lbs. I don't think the pull could be more than the weight, unless it were horizontal, then you'd have to account for friction or the fact that the load is pinned in place by the base bolts.
> 
> I don't know if that would actually cut the draw to something the PS could handle, but the 55 amps is for a 1000 lb. pull. The power leads are 10 ga. stranded.
> 
> Maybe we can get an engineer to chime in.
> 
> Mike NF4L
> 
> 
> On Feb 3, 2014, at 8:53 AM, john at kk9a.com wrote:
> 
>> I am not a mechanical engineer, wouldn't the pull on the cable be
>> significantly more than the weight of the tower when tilting it?  Then you
>> plan on running a 55 amp motor with a 20 amp power supply?
>> 
>> John KK9A