KitHelix™ N scale, 2 track, 19.5"/2.90%, 21.5"/2.63%, 3 turns Helix upgrade spiral direction:CounterClockwise is upgrade

KitHelix™ N scale, 2 track, 19.5"/2.90%, 21.5"/2.63%, 3 turns Helix upgrade spiral direction:CounterClockwise is upgradeThis helix rises 3 9 16" per turn and has a maximum rise of 10 5 8". Available exit points in the top loop of this helix are at the following vertical rises: 2 1 8 turns: 7 1 2", 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 5 8" Our Design: Our construction system uses alignment jigs (included in your kit), making the build faster, easier and more accurate.

3 3/4 turns: 10 1/4"

9 turns: 23 1/8"

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

7 7/8 turns: 24 3/8"

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

This helix rises 2 13/16" per turn and has a maximum rise of 17"

7 1/2 turns: 24 "

2 1/2 turns: 7 7/8"

4 1/2 turns: 13 "

This helix rises 3 3/16" per turn and has a maximum rise of 22 3/8"

6 turns: 20 3/4"

This helix rises 2 13/16" per turn and has a maximum rise of 19 1/2"