KitHelix™ N scale, 1 track, 20.0"/2.10%, 9 turns Helix upgrade spiral direction:Clockwise is upgrade

KitHelix™ N scale, 1 track, 20.0"/2.10%, 9 turns Helix upgrade spiral direction:Clockwise is upgradeThis helix rises 2 5 8" per turn and has a maximum rise of 23 3 4". Available exit points in the top loop of this helix are at the following vertical rises: 8 1 8 turns: 21 1 2", 8 1 4 turns: 21 3 4", 8 3 8 turns: 22 1 8", 8 1 2 turns: 22 3 8", 8 5 8 turns: 22 3 4", 8 3 4 turns: 23 1 8", 8 7 8 turns: 23 3 8", 9 turns: 23 3 4" Our Design: Our construction system uses alignment jigs (included in your kit), making the build faster, easier and more

This helix rises 3 " per turn and has a maximum rise of 15"

7 1/4 turns: 20 3/8"

6 turns: 15 5/8"

5 1/2 turns: 18 7/8"

7 5/8 turns: 22 5/8"

Custom cut spacer blocks based on specific grade of your helix

3 5/8 turns: 11 1/8"

3 7/8 turns: 12 3/4"

This helix rises 2 9/16" per turn and has a maximum rise of 12 3/4"

5 1/2 turns: 15 5/8"

2 5/8 turns: 6 7/8"

8 3/4 turns: 22 3/8"