KitHelix™ N scale, 2 track, 21.0"/2.20%, 23.0"/2.01%, 5 turns Helix upgrade spiral direction:Clockwise is upgrade

KitHelix™ N scale, 2 track, 21.0"/2.20%, 23.0"/2.01%, 5 turns Helix upgrade spiral direction:Clockwise is upgradeThis helix rises 2 7 8" per turn and has a maximum rise of 14 1 2". Available exit points in the top loop of this helix are at the following vertical rises: 4 1 8 turns: 12 ", 4 1 4 turns: 12 3 8", 4 3 8 turns: 12 3 4", 4 1 2 turns: 13 1 8", 4 5 8 turns: 13 3 8", 4 3 4 turns: 13 3 4", 4 7 8 turns: 14 1 8", 5 turns: 14 1 2" Our Design: Our construction system uses alignment jigs (included in your kit), making the build faster, easier and more accurate.

This helix rises 2 3/4" per turn and has a maximum rise of 19 1/2"

5 7/8 turns: 15 3/8"

2 1/2 turns: 12 3/8"

6 3/4 turns: 18 "

7 turns: 21 3/4"

Available exit points in the top loop of this helix are at the following vertical rises: 4 1/8 turns: 15 3/4"

3 5/8 turns: 12 1/4"

5 3/8 turns: 16 1/4"

1 1/2 turns: 4 1/4"

Available exit points in the top loop of this helix are at the following vertical rises: 5 1/8 turns: 16 5/8"

This helix rises 4 1/4" per turn and has a maximum rise of 8 1/2"

7 3/4 turns: 22 5/8"