KitHelix™ N scale, 2 track, 20.5"/2.50%, 22.5"/2.28%, 6 turns Helix upgrade spiral direction:CounterClockwise is upgrade

KitHelix™ N scale, 2 track, 20.5"/2.50%, 22.5"/2.28%, 6 turns Helix upgrade spiral direction:CounterClockwise is upgradeThis helix rises 3 1 4" per turn and has a maximum rise of 19 3 8". Available exit points in the top loop of this helix are at the following vertical rises: 5 1 8 turns: 16 1 2", 5 1 4 turns: 16 7 8", 5 3 8 turns: 17 1 4", 5 1 2 turns: 17 3 4", 5 5 8 turns: 18 1 8", 5 3 4 turns: 18 1 2", 5 7 8 turns: 18 7 8", 6 turns: 19 3 8" Our Design: Our construction system uses alignment jigs (included in your kit), making the build faster, easier and more

7 1/4 turns: 23 1/8"

Available exit points in the top loop of this helix are at the following vertical rises: 4 1/8 turns: 18 1/4"

5 3/4 turns: 18 7/8"

Available exit points in the top loop of this helix are at the following vertical rises: 4 1/8 turns: 14 7/8"

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

5 1/2 turns: 15 3/4"

7 turns: 19 1/8"

7 1/4 turns: 23 3/8"

Available exit points in the top loop of this helix are at the following vertical rises: 6 1/8 turns: 15 5/8"

6 7/8 turns: 20 3/4"

This helix rises 2 3/4" per turn and has a maximum rise of 10 7/8"

This helix rises 3 7/8" per turn and has a maximum rise of 15 1/2"