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| Why do pre-war traction motors growl when starting? (1287058) | |
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| (1287058) | |
Why do pre-war traction motors growl when starting? |
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Posted by seabeachexpress on Wed Apr 23 09:18:32 2014 I noticed that starting with the R10 cars in 1948 that wonderful sound was absent. |
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| (1287063) | |
Re: Why do pre-war traction motors growl when starting? |
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Posted by WillD on Wed Apr 23 09:38:49 2014, in response to Why do pre-war traction motors growl when starting?, posted by seabeachexpress on Wed Apr 23 09:18:32 2014. The Arnines and other early cars used Spur cut gears as opposed to the helical cut gears used on later cars. |
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| (1287102) | |
Re: Why do pre-war traction motors growl when starting? |
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Posted by chud1 on Wed Apr 23 14:44:52 2014, in response to Re: Why do pre-war traction motors growl when starting?, posted by WillD on Wed Apr 23 09:38:49 2014. very interesting.chud1. :).... |
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| (1287109) | |
Re: Why do pre-war traction motors growl when starting? |
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Posted by jan k. lorenzen on Wed Apr 23 15:03:18 2014, in response to Re: Why do pre-war traction motors growl when starting?, posted by chud1 on Wed Apr 23 14:44:52 2014. Miss that sound? There's some yootoobish with old Berlin S-bahn trains on the cars that were in service through the 90's. Wood bench seats, straight cut spur gear and air door sounds. Rode them in 1989 when I went to Berlin. Swore I was riding in a BMT Standard that I last rode in service 25 years earlier. There's more than one Berlin altimer S-bahn video available for your view and listening pleasure.Play 'em Loud! |
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| (1287151) | |
Re: Why do pre-war traction motors growl when starting? |
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Posted by Express Rider on Wed Apr 23 17:49:28 2014, in response to Re: Why do pre-war traction motors growl when starting?, posted by WillD on Wed Apr 23 09:38:49 2014. Thanks for the explanation. To second chud1, very interesting.I have been told that the HI-V's had a deeper growl/hum when they started up: I was on a northbound Lex local with my Dad in maybe summer 1956 or '57. We'd get on at 59th. St. coming upstairs from the BMT, and get off at 86th St. close to where his office was. I remember when the train started up, the hum was very much louder than the R9's and ramped up in pitch immediately - it seemed to do this in almost seconds. When we stopped, the entire train shook, clanged, and felt as though it would fall apart. Can anyone who rode Hi-V's in local service, confirm that this is what they sounded like? Or could it have just been a poorly maintained Lo-V? If the latter, this would have been the one time I rode Hi-V's. Thanks! |
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| (1287153) | |
Re: Why do pre-war traction motors growl when starting? |
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Posted by SelkirkTMO on Wed Apr 23 17:58:57 2014, in response to Re: Why do pre-war traction motors growl when starting?, posted by Express Rider on Wed Apr 23 17:49:28 2014. Yep ... they had bigger gears both on the motor and the axles. |
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| (1287175) | |
Re: Why do pre-war traction motors growl when starting? |
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Posted by Express Rider on Wed Apr 23 19:41:03 2014, in response to Re: Why do pre-war traction motors growl when starting?, posted by SelkirkTMO on Wed Apr 23 17:58:57 2014. Thanks. Didn't know this.Did you actually get to see this motor assembly on either of the preserved Hi-V's, or did you see this material (such as descriptions / drawings of the motors) elsewhere? |
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| (1287176) | |
Re: Why do pre-war traction motors growl when starting? |
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Posted by SelkirkTMO on Wed Apr 23 19:53:02 2014, in response to Re: Why do pre-war traction motors growl when starting?, posted by Express Rider on Wed Apr 23 19:41:03 2014. Took a look under 3662 at Branford years ago. Worked arnines back in 1970 and 71 so knew what to look for and saw that the Hi-V gearing was bigger. |
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| (1287182) | |
Re: Why do pre-war traction motors growl when starting? |
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Posted by Fisk Ave Jim on Wed Apr 23 20:41:16 2014, in response to Why do pre-war traction motors growl when starting?, posted by seabeachexpress on Wed Apr 23 09:18:32 2014. Behold, the growl lives! On Metro-North GE P32ac engines, a noticeable growl can be heard upon acceleration, especially noticeable in electric mode, in the Park Ave tunnel & on the viaduct. Sit in the car behind the engine, it'll be loud & clear. To me, It sounds like an R-9.I guess the bull cut gearing is alive & well. |
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| (1287183) | |
Re: Why do pre-war traction motors growl when starting? |
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Posted by CJ on Wed Apr 23 20:41:24 2014, in response to Re: Why do pre-war traction motors growl when starting?, posted by jan k. lorenzen on Wed Apr 23 15:03:18 2014. This is one of the videos of those trains from the S-Bahn. Taken by Youtube user, Yolticat.This trains in this video are known as BR 275 (ET 165). Built between 1927-1932, they would be reclassified as BR 475 around the early 1990s. They lasted until December 21st, 1997. |
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| (1287191) | |
Re: Why do pre-war traction motors growl when starting? |
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Posted by Lou From Middletown NY on Wed Apr 23 22:18:18 2014, in response to Re: Why do pre-war traction motors growl when starting?, posted by CJ on Wed Apr 23 20:41:24 2014. Now THAT'S mooing! |
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| (1287220) | |
Re: Why do pre-war traction motors growl when starting? |
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Posted by Fulton Frank on Thu Apr 24 07:14:08 2014, in response to Re: Why do pre-war traction motors growl when starting?, posted by Fisk Ave Jim on Wed Apr 23 20:41:16 2014. When I ride the cab of our WCRL GP9 and even our Alco 424, I think, I hear a faint gear growl. |
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| (1287372) | |
Re: Why do pre-war traction motors growl when starting? |
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Posted by Express Rider on Thu Apr 24 23:32:21 2014, in response to Re: Why do pre-war traction motors growl when starting?, posted by SelkirkTMO on Wed Apr 23 19:53:02 2014. Cool!Thanks! |
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| (1287383) | |
Re: Why do pre-war traction motors growl when starting? |
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Posted by CJ on Fri Apr 25 02:34:20 2014, in response to Re: Why do pre-war traction motors growl when starting?, posted by Lou From Middletown NY on Wed Apr 23 22:18:18 2014. Those GBM-700 motors make all the right sounds. |
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| (1287415) | |
Re: Why do pre-war traction motors growl when starting? |
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Posted by R32_3672 on Fri Apr 25 09:11:43 2014, in response to Re: Why do pre-war traction motors growl when starting?, posted by CJ on Wed Apr 23 20:41:24 2014. 10 out of 10 |
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| (1287416) | |
Re: Why do pre-war traction motors growl when starting? |
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Posted by seabeachexpress on Fri Apr 25 09:16:56 2014, in response to Re: Why do pre-war traction motors growl when starting?, posted by CJ on Wed Apr 23 20:41:24 2014. Wow!!!!!!! Double WOW! Thanks. now I have to clean the drool off my keyboard! |
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| (1287488) | |
Re: Why do pre-war traction motors growl when starting? |
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Posted by CJ on Fri Apr 25 15:37:20 2014, in response to Re: Why do pre-war traction motors growl when starting?, posted by seabeachexpress on Fri Apr 25 09:16:56 2014. LOL! The same user also has a 51 minute recording of those cars taken in 1988. He also has a recording of the 1938 tube stock in 1987 running on the Northern Line. |
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| (1287682) | |
Re: Why do pre-war traction motors growl when starting? |
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Posted by Steve B-8AVEXP on Sat Apr 26 16:15:16 2014, in response to Re: Why do pre-war traction motors growl when starting?, posted by SelkirkTMO on Wed Apr 23 19:53:02 2014. Were the gear ratios different for the Hi-Vs vs the R-1/9s? |
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| (1287683) | |
Re: Why do pre-war traction motors growl when starting? |
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Posted by Steve B-8AVEXP on Sat Apr 26 16:16:49 2014, in response to Re: Why do pre-war traction motors growl when starting?, posted by Fisk Ave Jim on Wed Apr 23 20:41:16 2014. Spur-cur gears are less expensive to make, but they're noisy (music to my ears). Helical-cut gears are more costly to produce, but are much quieter. |
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| (1287702) | |
Re: Why do pre-war traction motors growl when starting? |
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Posted by SelkirkTMO on Sat Apr 26 17:56:06 2014, in response to Re: Why do pre-war traction motors growl when starting?, posted by Steve B-8AVEXP on Sat Apr 26 16:15:16 2014. That, I dunno. |
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| (1287722) | |
Re: Why do pre-war traction motors growl when starting? |
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Posted by Wado MP73 on Sat Apr 26 21:23:04 2014, in response to Re: Why do pre-war traction motors growl when starting?, posted by CJ on Fri Apr 25 15:37:20 2014. He also has a recording of the 1938 tube stock in 1987 running on the Northern Line.Thank you, thank you! He also has a video of the last in service run of the RATP Z stock on the Sceaux line (RER B) in Paris. |
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| (1287724) | |
Re: Why do pre-war traction motors growl when starting? |
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Posted by CJ on Sat Apr 26 21:38:53 2014, in response to Re: Why do pre-war traction motors growl when starting?, posted by Wado MP73 on Sat Apr 26 21:23:04 2014. He also has a 54 minute recording of the Z stock, taken in 1985. |
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| (1287725) | |
Re: Why do pre-war traction motors growl when starting? |
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Posted by Fisk Ave Jim on Sat Apr 26 22:03:32 2014, in response to Re: Why do pre-war traction motors growl when starting?, posted by CJ on Wed Apr 23 20:41:24 2014. Great find! Thanks for posting. To me they sound like BMT standards. |
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| (1287743) | |
Re: Why do pre-war traction motors growl when starting? |
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Posted by Edwards! on Sun Apr 27 01:54:16 2014, in response to Re: Why do pre-war traction motors growl when starting?, posted by CJ on Wed Apr 23 20:41:24 2014. wow..took me back to my early days riding the R9's on the Jamaica lines. |
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| (1287748) | |
Re: Why do pre-war traction motors growl when starting? |
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Posted by salaamallah@hotmail.com on Sun Apr 27 03:40:02 2014, in response to Re: Why do pre-war traction motors growl when starting?, posted by CJ on Wed Apr 23 20:41:24 2014. sounds just like a r 1-9 |
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| (1287752) | |
Re: Why do pre-war traction motors growl when starting? |
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Posted by chud1 on Sun Apr 27 05:00:09 2014, in response to Re: Why do pre-war traction motors growl when starting?, posted by Wado MP73 on Sat Apr 26 21:23:04 2014. EXCELLENT!chud1. :).... |
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| (1287836) | |
Re: Why do pre-war traction motors growl when starting? |
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Posted by CJ on Sun Apr 27 18:52:52 2014, in response to Re: Why do pre-war traction motors growl when starting?, posted by salaamallah@hotmail.com on Sun Apr 27 03:40:02 2014. Yep. Only thing different is that those cars have four motors instead of two like on the R9s. |
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| (1287837) | |
Re: Why do pre-war traction motors growl when starting? |
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Posted by Wado MP73 on Sun Apr 27 18:55:55 2014, in response to Re: Why do pre-war traction motors growl when starting?, posted by CJ on Sat Apr 26 21:38:53 2014. My last ride on them was in 1981, Denfert to St. Rémy. They were already modified for OPTO, with door controls in the half cab. The driver let me stay at the RFW for the whole trip. I don't think it would be allowed now. |
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| (1287839) | |
Re: Why do pre-war traction motors growl when starting? |
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Posted by CJ on Sun Apr 27 19:10:53 2014, in response to Re: Why do pre-war traction motors growl when starting?, posted by Wado MP73 on Sun Apr 27 18:55:55 2014. They did a lot of refurbishments on them. Some of the BR275s were built into BR276s, which ran up until 2000 (as BR 476).The BR277/477s were the last of the old cars to retire in 2003. The average age of the S-Bahn cars up until the new trains arrived was around 55 years old. |
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| (1287875) | |
Re: Why do pre-war traction motors growl when starting? |
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Posted by 3-9 on Mon Apr 28 06:05:28 2014, in response to Re: Why do pre-war traction motors growl when starting?, posted by CJ on Sun Apr 27 19:10:53 2014. How come their cars lasted for 65-70 years? That's incredible considering that 50 years here would be ancient. |
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