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Author Topic: Weight that an a Gauge loco can/should pull  (Read 798 times)

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Offline austinbob

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Re: Weight that an a Gauge loco can/should pull
« Reply #15 on: July 08, 2017, 05:25:27 pm »
Some very good points (excuse pun!!) PLD.
We tend to forget our N gauge models are just that - models. They aren't scaled down prototypes.
I haven't really had much of a problem with pulling power except for the smaller Models. In that instance I just use a shorter train, which can still be prototypical if that's what rings your bell.
More important things to worry about I think.. (Enough beer in the fridge, what's for dinner, how am I gonna pay for that must have loco. etc.)
 :beers:
Size matters - especially if you don't have a lot of space - and N gauge is the answer!

Bob Austin

Offline Dorsetmike

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Re: Weight that an a Gauge loco can/should pull
« Reply #16 on: July 08, 2017, 05:37:13 pm »
Recent purchases of Farish SR N class 2-6-0 and Dapol Schools both manage a dozen bogies on the ara group layout so no complaints there, many of my other locos are white metal kits or Union Mills which don't have many problems.
Cheers MIKE


How many roads must a man walk down ... ... ... ... ... before he knows he's lost!

Online njee20

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Re: Weight that an a Gauge loco can/should pull
« Reply #17 on: July 08, 2017, 06:33:29 pm »
To be clear I'm not complaining, simply pointing out that "haulage isn't a problem" (I'm paraphrasing) isn't true.

I've just replaced my Dapol 66s with Farish ones on longer trains.

Online broadsword

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Re: Weight that an a Gauge loco can/should pull
« Reply #18 on: July 08, 2017, 06:41:34 pm »
It's rather like asking how fast should a human be able to run?
Are you Usain Bolt or a couch potato ?

Offline austinbob

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Re: Weight that an a Gauge loco can/should pull
« Reply #19 on: July 08, 2017, 06:44:42 pm »
Everyone has different priorities ngee. If haulage is an issue for you then I hope you find a solution.
How do your Farish 66's perform compared to the Dapol by the way.
I've got a Dapol collectors club class 66 'Evening Star' beautiful loco. Not in my era but had to have it.
 :beers:
Size matters - especially if you don't have a lot of space - and N gauge is the answer!

Bob Austin

Online njee20

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Re: Weight that an a Gauge loco can/should pull
« Reply #20 on: July 08, 2017, 06:58:21 pm »
Vastly better, they weigh a significant amount more, so it's no surprise.

The 66 is a particularly weak link for Dapol in this respect. The HST, 86 and 56 are significantly better. Never really taxed a 67.

Edit: worth saying that some Farish models are pretty weak too. I converted a 350 to a dummy and one powered car wouldn't even move 8 coaches. The Voyager isn't strong either.
« Last Edit: July 08, 2017, 07:12:59 pm by njee20 »

Offline Rabbitaway

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Re: Weight that an a Gauge loco can/should pull
« Reply #21 on: July 08, 2017, 07:48:04 pm »
I have noted before there are two different versions of the DCC Dapol 66

The first release with course wheels that has reasonable haulage and the second release with fine wheels which is less capable. Therefore haulage is not only down to weigh but wheel profile as well

Noticeable difference when tested back to back on an incline with a load

This point relates to DCC versions not the earlier non-DCC releases


Online njee20

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Re: Weight that an a Gauge loco can/should pull
« Reply #22 on: July 08, 2017, 07:58:33 pm »
Agreed, my findings are the same. They changed how the lights work too - sprung pickups on the older ones, wired on the newer ones. The older ones are more robust.

There's little going for the newest ones frankly!

Offline newportnobby

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Re: Weight that an a Gauge loco can/should pull
« Reply #23 on: July 08, 2017, 09:12:06 pm »
It also needs to be borne in mind our model locos are hand built by humans so no two will be the same i.e. Fred's class 66 is different to Joe's class 66 which is different to Ethel's class 66 so no comparison can really be made between them. OK -  differences may be very small but could be important to the end user.

Offline austinbob

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Re: Weight that an a Gauge loco can/should pull
« Reply #24 on: July 08, 2017, 09:15:00 pm »
So this Fred, Joe and Ethel.. Are they Forum members??
 :doh:
Size matters - especially if you don't have a lot of space - and N gauge is the answer!

Bob Austin

Offline newportnobby

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Re: Weight that an a Gauge loco can/should pull
« Reply #25 on: July 08, 2017, 09:16:45 pm »
So this Fred, Joe and Ethel.. Are they Forum members??
 :doh:

I see dead people

Online njee20

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Re: Weight that an a Gauge loco can/should pull
« Reply #26 on: July 08, 2017, 09:39:38 pm »
You're definitely right Nobby, even things like how tight the gears are will start to make a difference on otherwise identical models.

Offline martyn

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Re: Weight that an a Gauge loco can/should pull
« Reply #27 on: July 08, 2017, 09:54:13 pm »
Another thought-most of the models have a much greater power/weight ratio than the prototype due to having a relatively powerful motor in a relatively light chassis. The problem is getting this power to the wheel/rail interface; thus cast loco metal bodies with a greater mass (but usually less detail) have an advantage over a more detailed but lighter plastic body; think Union Mills.......or use traction tyres, which may or may not have their own problems (wear, incorrect milling of the wheel depth rendering the tyre not actually touching the track, amongst others).

I would think-I haven't tried it-that most model diesels have a similar pulling power which does not relate to the prototype; eg a model cl 20 will pull as much as a model cl47 or 66, which I don't think the real ones would.

I had my Poole era 40s and also some steam loco chassis professionally fitted with traction tyres, which vastly improved their hauling power.

Martyn
« Last Edit: July 08, 2017, 09:58:40 pm by martyn, Reason: another thought »

Offline newportnobby

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Re: Weight that an a Gauge loco can/should pull
« Reply #28 on: July 08, 2017, 10:18:41 pm »

I might do this with my locos and publish the results.

As has been said though, Chris, unless someone's track layout, cleanliness and every other variance is the same as you then it can only be your experience and not generally accepted as fact.

Offline newportnobby

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Re: Weight that an a Gauge loco can/should pull
« Reply #29 on: July 08, 2017, 11:27:36 pm »
Don't ask me why but I always think an odd number of coaches looks better than an even number :hmmm:
Off topic a little but I am testing all my locos through Kato #4 points (don't ask why) and will be publishing the results on the forum but will insist it is only a guide and should not be taken as gospel. So far, only 70% of my kettles have successfully traversed those points :(

 

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