KitHelix™ N scale, 2 track, 17.0"/2.70%, 19.0"/2.42%, 7 turns Helix upgrade spiral direction:CounterClockwise is upgrade

KitHelix™ N scale, 2 track, 17.0"/2.70%, 19.0"/2.42%, 7 turns Helix upgrade spiral direction:CounterClockwise is upgradeThis helix rises 2 7 8" per turn and has a maximum rise of 20 1 4". Available exit points in the top loop of this helix are at the following vertical rises: 6 1 8 turns: 17 5 8", 6 1 4 turns: 18 ", 6 3 8 turns: 18 3 8", 6 1 2 turns: 18 3 4", 6 5 8 turns: 19 1 8", 6 3 4 turns: 19 1 2", 6 7 8 turns: 19 7 8", 7 turns: 20 1 4" 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 "

1 1/2 turns: 4 5/8"

4 7/8 turns: 17 1/2"

6 1/2 turns: 19 7/8"

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

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

This helix rises 2 9/16" per turn and has a maximum rise of 12 7/8"

3 1/4 turns: 10 5/8"

6 3/4 turns: 22 3/4"

4 3/8 turns: 16 3/4"

6 5/8 turns: 17 1/4"

1 7/8 turns: 5 5/8"