MR engine reviews


You can run DCC with any brand of switch, even handlaid ones, like mine, built ten years before DCC.< You CAN use any switches and in most cases have not problems at all. DCC friendly means the frog is isolated from the other rails and the points, depending on the rail, are at the same polarity. Then when the extremely sloppy standards allow the back of the wheels to short between the point and rail there will be no short.
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On Thu, 17 Aug 2006 22:35:53 -0700, "Roger T."

http://www.wiringfordcc.com/switches.htm
http://www.wiringfordcc.com/switches_walthers_old.htm
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Mountain Goat wrote:

Since this thread has morphed way off-topic, here is another one:
Mountain Goat: I don't have a problem with your signature's political statements. But I think it is silly to have a signature which is longer than your acual posts. :-P
Peteski
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There's a variety that I use, some are longer, some shorter, they change randomly.
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On Wed, 16 Aug 2006 18:50:59 GMT, "Dan Merkel"

Since you asked.
On the top level of the layout, relatively level with some .5% and one short 1.0% grade, 36 inch minimum radius curves:
Bachman USRA light 2-10-2 Bachman 28 step DCC no sound - 21 cars (20 loaded Athearn twin hoppers and a caboose) stalled often on a reverse curve leading to a bridge, gauge is right on the NMRA standard here, possibly should be slightly widened as other members say their 10 coupled engines have problems here
Sunset GN Q-2 2-10-2 TCS T-1 decoder, no sound - 21 cars (20 loaded Athearn twin hoppers and a caboose) on that reverse curve leading to a bridge, would spin drivers but not stall (no blind driver)
Broadway USRA light 2-8-2 QSI sound decoder - 26 cars (25 loaded Athearn twin hoppers and a caboose) Never stalled or spun drivers, just ran and ran for three hours till I took it off and ran diesels for the rest of the day.
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On Mon, 21 Aug 2006 06:21:14 GMT, Mountain Goat wrote:

How tight a reverse? Any straight in the middle of the esses, and if so how long?
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On Mon, 21 Aug 2006 08:38:06 -0700, Steve Caple

About two foot straight between the two curves, both curves are > 36", I believe they were done by eye, just to avoid the 'bowling alley' effect of having the track parallel to the aisle. The 36" curve is at the end of the aisle. Track is Shinohara code 83 flex but hand laid over the bridge. When the engine is on the easement going into the 36" curve the train is on the reverse curve and the tangent between the curves.
Eight coupled steam (and smaller) and B-B or C-C diesels have no problem here.
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On Tue, 22 Aug 2006 03:53:54 GMT, Mountain Goat wrote:

And that leads to binding, while the 2-10-2 can negotiate a simple 36" radius without binding up? Difficult to see why, given a 24" length of straight between the curves - are all the tangents easemented?
I understand that the engine has a long rigid wheelbase, but blind center drivers help some. Does the 2-10-2 get through the initial part of ess OK?
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On Mon, 21 Aug 2006 22:25:18 -0700, Steve Caple wrote:

Or - <derrrrr, giving self dope slap> - is it a matter of the motor stalling against the increased drag of the train through the ess?
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On Mon, 21 Aug 2006 22:25:18 -0700, Steve Caple

yes
Yes it does, now the train is going to increase in resistance as it is in the S curve, and short tangent compared to the same train on straight track. I'm not sure here but in my opinion the engine is too light.
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Mountain Goat wrote:

Just a thought--- Have you looked at the 'level' of the track? I.E. is there possibly a twist, while going from one 'superelevated' curve to the next 'superelevated' curve? That could be enough to cut the applied 'tractive effort'. JMWAG
Chuck D.
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On Tue, 22 Aug 2006 10:10:04 -0400, Charles Davis

Good question, I'll look tonight. The curve on the bridge is super elevated but I don't think the S curve is.
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Dan Merkel wrote:

I think MR reviews have been very spotty over the years. Back when PFM was in buisiness, (and a major advertiser) they actually compared brass drivetrains. I don't know if it was much of a selling point, I think that people bought brass because they could get a model of a favorite prototype.
One thing that hasn't been mentioned with regard to locomotives is their running environment. Take say ......an Athearn GP9 and a consist of 10 assorted cars. If those cars are built straight from the box, with only Kadee couplers added, you could probably run the train on the flat without too many problems... Provided the trackwork is well executed. Throw the NMRA suggested weight into those cars though, and that same engine would be working much harder. Add grades into the mix like what is seen on countless home layouts. That same single engine is going to stall on the grade. Like the prototype, we are gonna have to add enough ponies into the train to hold onto the schedule. I've run a 35 car train over a club layout that demanded 4x 4 axle diesels on the point. Those locos all have added weight for traction. They still struggled up the almost 2% grade.
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