KitHelix™ N scale, 2 track, 21.0"/2.70%, 23.0"/2.47%, 3 turns Helix upgrade spiral direction:CounterClockwise is upgrade

KitHelix™ N scale, 2 track, 21.0"/2.70%, 23.0"/2.47%, 3 turns Helix upgrade spiral direction:CounterClockwise is upgradeThis helix rises 3 9 16" per turn and has a maximum rise of 10 3 4". Available exit points in the top loop of this helix are at the following vertical rises: 2 1 8 turns: 7 5 8", 2 1 4 turns: 8 ", 2 3 8 turns: 8 1 2", 2 1 2 turns: 8 7 8", 2 5 8 turns: 9 3 8", 2 3 4 turns: 9 3 4", 2 7 8 turns: 10 1 4", 3 turns: 10 3 4" Our Design: Our construction system uses alignment jigs (included in your kit), making the build faster, easier and more accurate.

This helix rises 3 5/8" per turn and has a maximum rise of 14 5/8"

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

3 3/8 turns: 10 3/8"

4 3/8 turns: 13 "

This helix rises 2 13/16" per turn and has a maximum rise of 11 1/8"

5 3/8 turns: 18 1/8"

5 5/8 turns: 19 1/8"

4 3/4 turns: 23 3/8"

7 1/2 turns: 22 3/8"

7 7/8 turns: 22 "

6 5/8 turns: 17 3/4"

5 1/2 turns: 16 1/8"