Track Spacing and Fast Track Crossovers

[kbkchooch]

Originally Posted by fcwilt

Understood but the NMRA documents lists different classes of gear and they say this in regards to class Ia:

"Includes the largest steam locomotives with four-wheel trailing trucks, articulated locomotives, those with rigid wheelbases in excess of 20 feet, full length passenger cars and other long rolling stock"

Well it's too late to make drastic changes now - I will just have to adjust the schedules to avoid conflicts.

The NMRA standards are guidelines, but not the law. Manufacturers still are strapped to the almighty bottom line, so if that demands fudging a measurement here, or changing a truck pivot there, they are going to do it. Read the product reviews in the NMRA Magazine (formerly Scale Rails). I amazed that once in a while, a conformance warrant gets issued.

Back to the issue at hand, I suspect you may only need less that 1/4 inch here or there to make it work, just a little wiggle really, that should be attainable!

[irocinblue89]

C'mon! I have my whole layout designed with 2 1/2" spacing! If I have to make it 3 1/2" for my big boy's or my H8 to run I will be very bummed. The next day off it looks like I have some testing to do...

[kbkchooch]

Originally Posted by irocinblue89

C'mon! I have my whole layout designed with 2 1/2" spacing! If I have to make it 3 1/2" for my big boy's or my H8 to run I will be very bummed. The next day off it looks like I have some testing to do...

Not nearly as bummed as you would be if you built it on 2 1/2 inch centers and 2 engines hit each other!!

What was that,,measure twice, cut once?

[fcwilt]

Originally Posted by kbkchooch

The NMRA standards are guidelines

Then I am a victim of my own ignorance - I thought the standards were also for modelers as to how they should build their layouts.

You live and learn.