VisionLine Niagara

I think the engine has the new style drawbar which elongates around curves. Make sure it is functioning properly.

Does the drawbar have more than one position in which it can be connected? (I don't think so, but...) Does this problem occur turning both left and right or just in one direction? If so, examine the cab grab irons and adjust slightly. The footplate also looks like it could affect turn performance.

MELGAR

MELGAR posted:

Does the drawbar have more than one position in which it can be connected? (I don't think so, but...) Does this problem occur turning both left and right or just in one direction? If so, examine the cab grab irons and adjust slightly.

MELGAR

I haven’t tried a different direction.   I will.    I will check to see if the draw bar is adjustable.    Regarding the Cab Grab Iron it seems pretty secure.    

That cab/tender platform may be playing a role. Is your track superelevated ("banked"), just not well-layed, or on a soft surface in that curve? This will change the geometry of movement. A large loco like this may need some "compromise adjustments" on tight curves. The handrail is brass and could easily be nudged into a shape giving more clearance to the tender steps without looking odd, if the interference is of the just-barely variety. 

Ok, so I am getting closer.    It seems it’s the Tender that is not happy.   It details on its own.    I am open to suggestions.    It’s Ross Track screwed in firmly.  Thoughts??????

It would "appear" from your video that you MAY have a tight kink at the rail joint you're going over when the tender derails. remember, this centipede tender has a five wheel rigid wheelbase that will be "picky' about what curves it may like. The track joint may be somewhat less than 0-54 causing your issue. Is this the only area where the tender derails, or do you have other areas as well?

One other thought if you have a micrometer is to check the wheel-back to wheel-back gauge; you may have a wheel set that is "wide" on gauge.

I only have 0-72 as a minimum curve on my layout, so haven't had any issues with this on my Niagara.

D&H 65 posted:

It would "appear" from your video that you MAY have a tight kink at the rail joint you're going over when the tender derails. remember, this centipede tender has a five wheel rigid wheelbase that will be "picky' about what curves it may like. The track joint may be somewhat less than 0-54 causing your issue. Is this the only area where the tender derails, or do you have other areas as well?

One other thought if you have a micrometer is to check the wheel-back to wheel-back gauge; you may have a wheel set that is "wide" on gauge.

I only have 0-72 as a minimum curve on my layout, so haven't had any issues with this on my Niagara.

YES.....  I think it is my track.      Although my VisionLine Hudson runs well on the section, it seems any imperfections in my track laying skills is revealed with the Niagara.      Thank you sir!!!!!!

Thank you for all your help.     It was my poor track laying skills.      All is good again.      Again, thanks