KitHelix™ N scale, 2 track, 18.5"/3.00%, 20.5"/2.71%, 3 turns Helix upgrade spiral direction:CounterClockwise is upgrade

KitHelix™ N scale, 2 track, 18.5"/3.00%, 20.5"/2.71%, 3 turns Helix upgrade spiral direction:CounterClockwise is upgradeThis helix rises 3 1 2" per turn and has a maximum rise of 10 1 2". Available exit points in the top loop of this helix are at the following vertical rises: 2 1 8 turns: 7 3 8", 2 1 4 turns: 7 7 8", 2 3 8 turns: 8 1 4", 2 1 2 turns: 8 3 4", 2 5 8 turns: 9 1 8", 2 3 4 turns: 9 5 8", 2 7 8 turns: 10 ", 3 turns: 10 1 2" Our Design: Our construction system uses alignment jigs (included in your kit), making the build faster, easier and more accurate.

5 7/8 turns: 16 1/4"

9 1/2 turns: 24 3/4"

1 3/4 turns: 6 5/8"

8 1/2 turns: 23 1/2"

9 1/2 turns: 24 1/2"

5 turns: 17 "

4 1/2 turns: 12 1/2"

3 7/8 turns: 12 3/4"

This helix rises 2 13/16" per turn and has a maximum rise of 25 1/2"

This helix rises 2 11/16" per turn and has a maximum rise of 16 1/4"

4 turns: 15 1/2"

Available exit points in the top loop of this helix are at the following vertical rises: 6 1/8 turns: 17 1/2"