KitHelix™ N scale, 2 track, 20.5"/2.10%, 22.5"/1.91%, 8 turns innerradius21-0

KitHelix™ N scale, 2 track, 20.5"/2.10%, 22.5"/1.91%, 8 turns innerradius21-0This helix rises 2 11 16" per turn and has a maximum rise of 21 5 8". Available exit points in the top loop of this helix are at the following vertical rises: 7 1 8 turns: 19 1 4", 7 1 4 turns: 19 5 8", 7 3 8 turns: 20 ", 7 1 2 turns: 20 1 4", 7 5 8 turns: 20 5 8", 7 3 4 turns: 21 ", 7 7 8 turns: 21 1 4", 8 turns: 21 5 8" Our Design: Our construction system uses alignment jigs (included in your kit), making the build faster, easier and more accurate.

5 1/4 turns: 14 "

Interlocking corners make stronger joints and keeps corners square

3 7/8 turns: 17 1/8"

7 3/4 turns: 24 7/8"

4 1/2 turns: 12 3/8"

4 1/2 turns: 11 1/2"

8 turns: 23 3/8"

This helix rises 3 1/16" per turn and has a maximum rise of 21 1/2"

1 1/4 turns: 3 3/8"

Minimum above railhead height clearance of 4 1/16”

5 7/8 turns: 15 "

3 3/8 turns: 9 "