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Discussion Boards => N => Topic started by: Bloks on November 11, 2015, 09:52:57 AM

Title: GP7 locomotive - most silent?
Post by: Bloks on November 11, 2015, 09:52:57 AM
Really GP7 locomotive is most silent? Or switcher NW2 are quieter? Maybe another locomotive are better in this case? Maybe somewhat is GP7 owner an can tell real situation?
Title: Re: GP7 locomotive - most silent?
Post by: brokemoto on November 11, 2015, 10:10:06 AM
If you mean the B-mann GP-7, it is quite the quiet locomotive.   It makes less  noise than most.  It does make less noise than does the Kato NW-2, or, the Atlas GP-7, for that matter.
Title: Re: GP7 locomotive - most silent?
Post by: Bloks on November 11, 2015, 10:40:45 AM
But Bachmann NW2 have coreless motor, GP7 only can motor (from item descriptions in Bacmann WebShop) - how you can explain - coreless motor are more noisy?
Title: Re: GP7 locomotive - most silent?
Post by: gatrhumpy on November 11, 2015, 03:05:50 PM
Being quiet is a matter of perception. Coreless motors generally are quieter, but like I said, if you have one that does not run well, it will be louder than a 5 pole motor that isn't tuned right.
Title: Re: GP7 locomotive - most silent?
Post by: Bloks on November 11, 2015, 04:37:15 PM
"matter of perception" - can i hear wheel sounds un track sticks - its can be criteria?
Title: Re: GP7 locomotive - most silent?
Post by: brokemoto on November 11, 2015, 08:58:39 PM
Quote from: Bloks on November 11, 2015, 10:40:45 AMBut Bachmann NW2 have coreless motor

I forgot about the B-mann NW-2.   I have one, but have not run it in some time.
Title: Re: GP7 locomotive - most silent?
Post by: Bloks on November 12, 2015, 06:41:48 AM
Can You test them (Bachmann NV-2) for me? Maybe You can make some little video? (If this locomotive can run - not defective)
Title: Re: GP7 locomotive - most silent?
Post by: gatrhumpy on November 12, 2015, 07:38:05 AM
Quote from: Bloks on November 11, 2015, 04:37:15 PM
"matter of perception" - can i hear wheel sounds un track sticks - its can be criteria?

Generally you don't hear wheel sounds from the wheels unless you have uneven track or the locomotive is going over a switch. The Bachmann GP7 I have also have an MRC 1955 DCC Sound decoder in it, so I can add the sound of rail clack from the speaker if I want to.
Title: Re: GP7 locomotive - most silent?
Post by: Bloks on November 12, 2015, 10:28:49 AM
I want push platform with camera before locomotive - any possible noise need suspend (not add noise).
Some time ago i try build silent pusher from Kato passenger car (with illumination). I mount little motor with propeller (from old Silverlit helicopter). This construction run without noise (wheels noise are higher). But force is low - even few degrees up track  and all stopped ...

(http://readme.lv/bildes/2015-11-12-forum-bachmanntrains-com-1.jpg)
Its coreless motor

(http://readme.lv/bildes/2015-11-12-forum-bachmanntrains-com-2.jpg)
.
(http://readme.lv/bildes/2015-11-12-forum-bachmanntrains-com-3.jpg)
Title: Re: GP7 locomotive - most silent?
Post by: gatrhumpy on November 12, 2015, 02:43:09 PM
You're going to have some noise with locomotives. No way to avoid it. Not sure what you're asking in the last post, but the Bachmann GP7 is very quiet.
Title: Re: GP7 locomotive - most silent?
Post by: Bloks on November 12, 2015, 05:01:47 PM
Yes, true.
I have some (Kato) locomotives. All have some noise. Best is Kato EMD SD-40. Others are louder.
I dreaming about most silent n scale locomotive.

https://www.youtube.com/watch?v=80xrDDIwG5U (https://www.youtube.com/watch?v=80xrDDIwG5U)
something like this - can hear rails and wheels, talking people around, but not hear engines and gears.
Title: Re: GP7 locomotive - most silent?
Post by: gatrhumpy on November 12, 2015, 05:23:37 PM
Bachmann GP7 is very quiet.
Title: Re: GP7 locomotive - most silent?
Post by: spookshow on November 13, 2015, 07:27:06 AM
Whether it's a Bachmann GP7, S-4, NW2, or F7, you really can't go wrong. They're all very quiet.

The only Bachmann diesel of recent vintage that I found to be a bit noisy is their RS-3.

Cheers,
-Mark
Title: Re: GP7 locomotive - most silent?
Post by: Bloks on December 04, 2015, 08:07:59 PM
I received GP7 today. Yes, forward run its quieter than my best Kato locomotive (backward - bit louder). Not silent like freight car, but very good!
I like Bachmann DC/DCC decoder - i can use this loco on my analog (DC) layout without any modifications! Out-of-box run great!
(http://readme.lv/bildes/2015-12-05-forum-bachmanntrains-com-1.jpg)

(http://readme.lv/bildes/2015-12-05-forum-bachmanntrains-com-2.jpg)