KitHelix™ N scale, 2 track, 19.0"/2.80%, 21.0"/2.53%, 7 turns outergrade2-71

KitHelix™ N scale, 2 track, 19.0"/2.80%, 21.0"/2.53%, 7 turns outergrade2-71This helix rises 3 5 16" per turn and has a maximum rise of 23 3 8". Available exit points in the top loop of this helix are at the following vertical rises: 6 1 8 turns: 20 1 2", 6 1 4 turns: 20 7 8", 6 3 8 turns: 21 1 4", 6 1 2 turns: 21 3 4", 6 5 8 turns: 22 1 8", 6 3 4 turns: 22 5 8", 6 7 8 turns: 23 ", 7 turns: 23 3 8" Our Design: Our construction system uses alignment jigs (included in your kit), making the build faster, easier and more

This helix rises 3 3/8" per turn and has a maximum rise of 6 3/4"

This helix rises 3 11/16" per turn and has a maximum rise of 11"

5 7/8 turns: 16 1/2"

2 3/8 turns: 7 3/8"

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

This helix rises 3 5/8" per turn and has a maximum rise of 18"

4 3/8 turns: 13 5/8"

7 7/8 turns: 21 5/8"

6 7/8 turns: 20 3/4"

3 5/8 turns: 11 7/8"

This helix rises 3 5/16" per turn and has a maximum rise of 13 3/8"

2 3/4 turns: 10 3/8"