NTRAK Modular Railroading Society, Inc

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The NTRAK Standard

Click here for a two-page PDF file that includes a sketch of the basic, standard 2'x4' straight N-Trak module, including position of required tracks, wiring, legs, etc. plus several detail sketches and accompanying notes.

Modules are joined in a layout by clamping with two "C" clamps and inserting 5" sections of Atlas "Snap Track". (Actual length, 4.910")


Remove the tie from one end so that the rail joiners (Atlas preferred) will slide fully on. Place joiners on other end, put in place, and then (with tweezers or similar implement) slide joiners into position.

For clamp clearance, top of rail to opening for "C" clamp is 4.5".

Here are some of the most important measurements for the NTRAK standards in both millimeters and inches. If there is something more you want to know, feel free to ask.

Track Measure From rear Height Min radius Max grade Cable color Notes
Main Line 1 mm
in.
508
20
0
0
610
24
0%
0%
Red R
Main Line 2 mm
in.
470
18.5
0
0
610
24
0%
0%
Yellow R
Branch Line 1 mm
in.
432
17
0
0
457
18
1.5%
1.5%
Blue B
Branch Line 2 mm
in.
254
10
0
0
457
18
1.5%
1.5%
Blue/Yellow B
Mountain
  Line
mm
in.
100
4
+80
+3.125
305
12
3%
3%
Green O
Set Up
  Track
mm
in.
-32
-1.25
0
0
?
?
?
?
Green/Yellow O
Passing
  Track
mm
in.
546
21.5
0
0
?
?
?
?
Orange O
Nn3 Front mm
in.
559
22
-50
-2
?
?
?
?
Red/Green N
Nn3 Middle mm
in.
394
15.5
0
0
?
?
?
?
Yellow/Green N
Nn3 Rear mm
in.
162
6
+64
+2.5
?
?
?
?
Blue/Green N
NCat Front mm
in.
381
15
0
0
254
10
?
?
Special C
NCat Rear mm
in.
50
2
0
0
250
10
?
?
Special C
12V - - - - - White
Floor mm
in.
- -1015
-40
- - - A
Module Sizes mm  Length 1220, 1830, or 2440 Depth 610
in. Length 4', 6', or 8' Depth 2'
Extensions mm
in.
152 to front and/or rear
6 to front and/or rear

Notes: R Required
B Required - either BL1, BL2, BL1/BL2 transition or BL2/BL1 transition.
O Optional
N Required for Nn3 standard
C Required for NCat standard
A Must be adjustable + / - 25mm or 1"

Possible extension
Up to to 6" may be added to both the front and rear of modules to make room for scenery or track plans. If extra is added at the rear, the skyboard should still come forward in some manner to match the standard position.
[The NTRAK "How-To" Book, p. 11]

You can order a basic 20-page NTRAK Module Manual containing the NTRAK standards.

You can also order the NTRAK Module 'How-to' Book, a large-format, spiral-bound book with over 100 pages including all of the material in the 16-page manual plus 50 module photos and track plans, chapters on carpentry, wiring and design of modules, for $12.00.

The Wiring and Connector standards are documented in 2011 Standards for Wiring and Connectors.You can download several PDF files discussing and detailing Powerpole Connectors in the document Wiring and Connectors Recommended Practice page.

 

Requirements for Use of Power Strips and Extension Cords with NTRAK Modules

Ncat
Live overhead wire standards and information:

http://www.teamsavage.com/ncat/ncat.html 
 


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