Reversing Travel

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Reversing Travel - BR 221 runs backwards, i.e. #1 on cab is backwards on CS 2

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Crocodile		#1 Posted : 17 August 2014 16:42:25(UTC) Retweet
Joined: 22/01/2013(UTC) Posts: 15 Location: Wichita Falls, Texas		How can the directional travel be changed so that #1 on cab is forward. Have same issue with my 103. Both loco's are MFX. Thanks


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RayF		#2 Posted : 17 August 2014 18:00:29(UTC) Retweet
Joined: 14/03/2005(UTC) Posts: 15,839 Location: Gibraltar, Europe		There is a cv which sets the direction of travel. Can't remember which it is at the moment, sorry.
		Ray Mostly Marklin.Selection of different eras and European railways Small C track layout, control by MS2, 100+ trains but run 4-5 at a time.


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Goofy		#3 Posted : 17 August 2014 19:46:15(UTC) Retweet
Joined: 12/08/2006(UTC) Posts: 9,012		There is CV29 you can set direction. But it´s for DCC protocol. I´m not sure if it does work with mfx decoder.
		H0 DCC = Digital Command Control


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H0		#4 Posted : 17 August 2014 20:34:39(UTC) Retweet
Joined: 16/02/2004(UTC) Posts: 15,262 Location: DE-NW		Originally Posted by: Crocodile How can the directional travel be changed so that #1 on cab is forward. Have same issue with my 103. Both loco's are MFX. Märklin made the vast majority of BR 103 models so that cab #2 will be the default direction. You get the best tractive effort with slider forward. So why change it? With some decoders you can change the default direction, with some you cannot. We'd need more information.
		Regards Tom --- "In all of the gauges, we particularly emphasize a high level of quality, the best possible fidelity to the prototype, and absolute precision. You will see that in all of our products." (from Märklin New Items Brochure 2015, page 1) ROFLBTCUTS

1 user liked this useful post by H0		grnwtrs
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Dimi194		#5 Posted : 17 August 2014 23:56:19(UTC) Retweet
Joined: 21/02/2011(UTC) Posts: 382		Originally Posted by: H0 You get the best tractive effort with slider forward. So why change it? Really? Why is that? (Thanks for the heads up, didn't know this!)
		Author of the gritty sci-fi novel 'Stories of Earth: WWIII' (featuring an awesome train chase) Avid YouTuber (XtremeTrainz and TrainzXtreme) and train person!
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H0		#6 Posted : 18 August 2014 08:07:05(UTC) Retweet
Joined: 16/02/2004(UTC) Posts: 15,262 Location: DE-NW		Originally Posted by: Dimi194 Why is that? The pivot points of the trucks are above rail level and the coupler is also above rail level. That's why the leading axle of each truck gets lifted, that's why the leading truck gets lifted. For Märklin's E 17, MIBA measured a tractive effort of 181 gr with cab 1 forward - and 330 gr with cab 2 forward. E 17, E 18 and E 19 are other locos that usually have the slider under cab 2. In 1:1 gauge they use special mechanisms (Tiefanlenkung in German, weight transfer linkage (?) in English) to compensate this.
		Regards Tom --- "In all of the gauges, we particularly emphasize a high level of quality, the best possible fidelity to the prototype, and absolute precision. You will see that in all of our products." (from Märklin New Items Brochure 2015, page 1) ROFLBTCUTS

3 users liked this useful post by H0		RayF, biedmatt, Dimi194
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RayF		#7 Posted : 18 August 2014 09:16:34(UTC) Retweet
Joined: 14/03/2005(UTC) Posts: 15,839 Location: Gibraltar, Europe		Good explanation, Tom. I always think of the comparison with front wheel drive and rear wheel drive in cars. Rear wheel drive cars are less likely to break traction on acceleration than front wheel drive cars.
		Ray Mostly Marklin.Selection of different eras and European railways Small C track layout, control by MS2, 100+ trains but run 4-5 at a time.

1 user liked this useful post by RayF		Dimi194
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