Joined: 12/08/2006(UTC)
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This was test by of Märklinist with different Märklin locomotives. You can see that even 4 traction tyres does not help to impress tractive power to pull more wagons! www.youtube.com/watch?v=ggZexsw0uA4 |
H0
DCC = Digital Command Control
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 4 users liked this useful post by Goofy
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Joined: 12/08/2006(UTC)
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There is another video test with diesel locomotive by same Märklinist. |
H0
DCC = Digital Command Control
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 Joined: 10/02/2021(UTC) Posts: 3,904 Location: Michigan, Troy
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Both are interesting. Of course the heavier Locs suffer less wheel slip, and the Compact C sine and older motors had better torque. In the second, I was surprised to see the br 260 derail at such slow speed, but it is fairly light. Of course uneven tracks pose more of a problem for longer cars and locs.-consists. Speed also plays a role. Marklin steam Locos. with several drivers usually have articulated sets to negotiate curves better. Keeping tracks as flat and level as possible is best.
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1 user liked this useful post by marklinist5999
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Joined: 23/04/2019(UTC)
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Location: Copenhagen, Denmark
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Originally Posted by: Goofy  This was test by of Märklinist with different Märklin locomotives. You can see that even 4 traction tyres does not help to impress tractive power to pull more wagons! www.youtube.com/watch?v=ggZexsw0uA4 You're talking BS again. The two locos with with the most pulling power were a BR 120 with 320 grams pulling power and a BR 182 with 340 grams and they both have 4 traction tyres. The best loco with 2 tyres was a BR E10 with 310 grams. Besides if you wanted a scientific test you would have to test each locomotive with both 2 and 4 traction tyres and also take into consideration other construction details (like motor and gearing etc).
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 Joined: 18/02/2008(UTC) Posts: 1,334
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The configuration of the decoders take also its percentage on the results...
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Best regards,
Miguel
Mostly Märklin H0.
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 Joined: 13/01/2013(UTC) Posts: 35 Location: copenhagen
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I only see some lokomotive with some text |
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Poul M Hansen |
1 user liked this useful post by poulmh
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Joined: 12/08/2006(UTC)
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Originally Posted by: Copenhagen Originally Posted by: Goofy This was test by of Märklinist with different Märklin locomotives. You can see that even 4 traction tyres does not help to impress tractive power to pull more wagons! www.youtube.com/watch?v=ggZexsw0uA4 You're talking BS again. The two locos with with the most pulling power were a BR 120 with 320 grams pulling power and a BR 182 with 340 grams and they both have 4 traction tyres. The best loco with 2 tyres was a BR E10 with 310 grams. Besides if you wanted a scientific test you would have to test each locomotive with both 2 and 4 traction tyres and also take into consideration other construction details (like motor and gearing etc). That was total pointless comment! In fact does video show test result of different locomotives. What it matter are low point of gravity that impress tractive pull power, whatever 2 or 4 traction tires. The video are fair test so your comment are total waste.  |
H0
DCC = Digital Command Control
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1 user liked this useful post by Goofy
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 Joined: 22/01/2009(UTC) Posts: 14,875 Location: On 1965 Märklin Boulevard just around from Roco Square
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I can't see the value in having tests done on locos you've bought because you like them or you bought them for a specific reason believing they have a good pulling power., such tests are inconclusive as other matters have a bearing on a locos pulling power, clean tracks, new rubber tyres, etc etc., it may give you an approximate result, on the other hand one should find out why these locos have a different pulling power and what are the resons behind it, unless you'll find the reason the tests are for what purpose ?
John |
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3 users liked this useful post by river6109
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Joined: 23/04/2019(UTC)
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Location: Copenhagen, Denmark
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Originally Posted by: Goofy Originally Posted by: Copenhagen Originally Posted by: Goofy This was test by of Märklinist with different Märklin locomotives. You can see that even 4 traction tyres does not help to impress tractive power to pull more wagons! www.youtube.com/watch?v=ggZexsw0uA4 You're talking BS again. The two locos with with the most pulling power were a BR 120 with 320 grams pulling power and a BR 182 with 340 grams and they both have 4 traction tyres. The best loco with 2 tyres was a BR E10 with 310 grams. Besides if you wanted a scientific test you would have to test each locomotive with both 2 and 4 traction tyres and also take into consideration other construction details (like motor and gearing etc). That was total pointless comment! In fact does video show test result of different locomotives. What it matter are low point of gravity that impress tractive pull power, whatever 2 or 4 traction tires. The video are fair test so your comment are total waste. The video shows that the two locos with the most pulling power have 4 traction tyres. That's indisputable!! (Though you often dispute facts). Many of the locos with 4 tyres have relatively low pulling power. But what would their pulling power be if they had only 2? Lower or higher? If it would be lower it's a proof that 4 is better than 2.
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2 users liked this useful post by Copenhagen
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Joined: 16/02/2004(UTC)
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Originally Posted by: Goofy You can see that even 4 traction tyres does not help to impress tractive power to pull more wagons! Can I see that? Not really. The test shows that four powered axles with four traction tyres are better than two powered axles with four traction tyres. What a surprise. Four powered axles with two traction tyres sometimes pull about as good as two powered axles with four traction tyres. What a surprise. Oh, and loco weight matters. What a surprise. |
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
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Joined: 10/02/2021(UTC) Posts: 3,904 Location: Michigan, Troy
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I think everyones points have some validity. Depending on the weight of the Loco., many heavier 2 axle powered ones have the best tractive effort with 4 tires, unless one with two tires has each firmly set into just the right curve. Then I don't think it matters how many powerd axles. Are any CoCo Marklin's 6 axle powered, like a br 103, An SJ my series, or an SBB ae 6/6?
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 Joined: 04/02/2011(UTC) Posts: 3,563 Location: Paris, France
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Hi
Thanks for the interesting video
The pulling power as you know depends on multiple factors:
- the wheel tires how new they are, how clean they are (a tire contaminated with oil is good for replacement)
- the weight (vertical force) applied to wheels with tires.
- the rail cleanliness and upper surface (flat, round, oily, etc)
- the rubber tire position on the loco (e.g.: an old BR 01 with tires on the rear axle, will pull much more when forwards compared with reverse)
- the rail type: straight or curved, the more curved, the less pulling power, on many track pieces (DSS, points, crossings) the pulling power reduces sharply due to tire offload.
Cheers
Jean |
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Joined: 23/04/2019(UTC)
Posts: 497
Location: Copenhagen, Denmark
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When I watched the video I took notes:
Here is the pulling power in grams for locos with 4 tyres:
250, 214, 270, 140, 140, 320, 185, 215, 340, 210, 195.
For the locos with 2 tyres:
65, 120, 310.
(I only watched the video once, so I haven't checked if I've gotten anything wrong).
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Joined: 26/07/2021(UTC) Posts: 635 Location: Sydney
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Just need to repeat it all in Z gauge where there are real issues. Traction tyres on 3rd axle works best as this one gets pushed down on the rails, 2nd and 4th axles lift due to the drive gears. The 3rd axle is more to the centre of the loco to benefit from weight along the loco.  
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Joined: 08/11/2005(UTC) Posts: 3,528 Location: Mullerup, 4200 Slagelse
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If you can dream it, you can do it! I, the copyright holder of this work, hereby release it into the public domain. This applies worldwide. In case this is not legally possible: I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.  |
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Joined: 10/02/2021(UTC) Posts: 3,904 Location: Michigan, Troy
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They may aanyhow once the human sized drones hit the market! Pick me up, fly me to point B, etc. No more gas or insurance to buy either!
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