Subject:
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Re: PF train motor / train speed and pulling power
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Newsgroups:
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lugnet.trains
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Date:
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Sat, 4 Apr 2009 13:24:52 GMT
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Viewed:
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19919 times
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In lugnet.trains, Reinhard "Ben" Beneke wrote:
> In lugnet.trains, Dave Sterling wrote:
> > I just noticed the new PF Lithium Polymer Battery Box output is 7.4V. Am I
> > missing something here? Did they drop it from 9V since most people only run
> > their train controllers at the 4th or 5th 'hash mark' equating to about 7.4V
> > maximum? Is this going to pose an issue with longer/heavier trains?
> >
> > Just thinking...
> >
> > -Dave
> > ToT-LUG
>
> Hi Dave,
>
> I was lucky to receive an Emerald train as kind of beta tester.
> It got motorized with a XL-PF-motor as intended in the building instruction, but
> I have used an old 9V battery box (equipped with 6 pc. of 1.2V NiMH rechargable
> batteries). This offers 6x1.2V = 7.2V in total and so it will be comparable to
> the new Lithium Polymer battery box.
>
> With this equipment the Emerald is slower than 9V trains, but it is obviously
> the most powerful train since set 112 (which had just unbelievable pulling
> power!).
>
> I am convinced that this drive will be much stronger than the clutching power of
> the magnet couplings. So with different gearing you will be able to make up
> faster (but less powerful) trains.
>
> If you are interested in the speed of the train, please check out this short
> video of my train running at full speed with 7.4V:
> http://www.youtube.com/watch?v=dp4lnQvVYqs
>
> With Kind Regards,
>
> Ben
Ben:
Wow. Thanks for the video link! It looks pretty cool running there, and the
speed seems to be reasonable. I don't necessarily run my trains very fast, I
just usually have 5-7 pieces of rolling stock hooked on back of the freight
trains. I wanted to make sure I could still pull my trains with minimal effort.
Sounds like that answer is yes. :-)
One other question though, the Emerald Night sounds incredibly noisy compared to
previous 9V trains. As I have never built a steam train, maybe this is normal.
But it just seems like there is a lot of 'gear whine' when running. Did you
notice this as well or is it just an artifact of the acoustics of the room you
shot the video in? Instead of motorizing the Emerald night, does it make more
sense to built it without the gear drive and motorize a coach with a 9V or PF
train motor (effectively pushing the Emerald Night?
Thanks again for the info. This is why I love LUGNET so much! You guys rock.
:-)
Best Regards,
Dave
ToT-LUG
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Message has 1 Reply:
Message is in Reply To:
 | | Re: PF train motor / train speed and pulling power
|
| (...) Hi Dave, I was lucky to receive an Emerald train as kind of beta tester. It got motorized with a XL-PF-motor as intended in the building instruction, but I have used an old 9V battery box (equipped with 6 pc. of 1.2V NiMH rechargable (...) (16 years ago, 4-Apr-09, to lugnet.trains)
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