KitHelix™ N scale, 2 track, 15.0"/2.80%, 17.0"/2.47%, 8 turns outergrade2-63

KitHelix™ N scale, 2 track, 15.0"/2.80%, 17.0"/2.47%, 8 turns outergrade2-63This helix rises 2 5 8" per turn and has a maximum rise of 21 1 8". Available exit points in the top loop of this helix are at the following vertical rises: 7 1 8 turns: 18 3 4", 7 1 4 turns: 19 1 8", 7 3 8 turns: 19 1 2", 7 1 2 turns: 19 3 4", 7 5 8 turns: 20 1 8", 7 3 4 turns: 20 1 2", 7 7 8 turns: 20 3 4", 8 turns: 21 1 8" Our Design: Our construction system uses alignment jigs (included in your kit), making the build faster, easier and more

Not included:

6 turns: 16 1/4"

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

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

Available exit points in the top loop of this helix are at the following vertical rises: 6 1/8 turns: 21 3/4"

Available exit points in the top loop of this helix are at the following vertical rises: 8 1/8 turns: 21 7/8"

3 3/8 turns: 10 5/8"

2 7/8 turns: 7 7/8"

6 3/8 turns: 16 7/8"

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

5 5/8 turns: 20 1/4"

Available exit points in the top loop of this helix are at the following vertical rises: 3 1/8 turns: 10 "