for 20 ton winch about $33k
for same rated hoist half that.
460 volts 3 phase power,
basically, dirt cheap to run electrically. say, approximately .01 MW at
maximum power.
didn 't check prices on marine units as I suspect they'd be a bit higher in
a far more corrosive environment than space.
hydraulic and pneumatic systems i didn't check either as they would be
subject to vacuum and absolute cold on a regular basis. both would freeze in
space 8-)
On Tue, Jun 1, 2010 at 2:23 PM, Tim O'Reilly <
> wrote:
>
>
> google search page:
>
>
>
http://www.google.com/search?sourceid=navclient&ie=UTF-8&rlz=1T4TSNA_en___US376&q=towing+winch+18+ton
> Possible site to check on industrial strength winches
>
http://www.ec21.com/kp-towing-winch/(Caution Norton Utilities ID'd PC
> hazards associated with this site)
> A maritime take on the issue (PDF) document
>
http://www.mtvassociation.com/files/EscortWinchLoadControl.pdf
> Regards,
> Tim
>
> --- On *Tue, 6/1/10,
<
>* wrote:
>
>
> From:
<
>
> Subject: [Traveller_TNE] a few questions
> To:
> Date: Tuesday, June 1, 2010, 9:46 AM
>
>
>
> Almost finished my re-working of the Hector-Class miner. A few questions
> remain:
>
> 1) Can anyone provide stats for the jump nets? (I think someone said they
> were from MT?)
>
> 2) My original design used the stats for a fuel bladder to represent the
> space needed to store a jump net large enough for my needs, but the fuel
> bladder stats don't include mass. Does anyone know what mass fuel
> bladders should have? (I assume not much, but 300m3 has got to weigh
> something.)
>
> 3) Does anyone have an idea how large/heavy/pricey three winches, capable
> of towing 18,000 kg, would be?
>
>
>
>
--
The scientists of today think deeply instead of clearly. One must be sane to
think clearly, but one can think deeply and be quite insane.
Nikola Tesla