KitHelix™ N scale, 2 track, 21.0"/2.70%, 23.0"/2.47%, 4 turns innergrade2-20

KitHelix™ N scale, 2 track, 21.0"/2.70%, 23.0"/2.47%, 4 turns innergrade2-20This helix rises 3 9 16" per turn and has a maximum rise of 14 1 4". Available exit points in the top loop of this helix are at the following vertical rises: 3 1 8 turns: 11 1 8", 3 1 4 turns: 11 5 8", 3 3 8 turns: 12 ", 3 1 2 turns: 12 1 2", 3 5 8 turns: 12 7 8", 3 3 4 turns: 13 3 8", 3 7 8 turns: 13 3 4", 4 turns: 14 1 4" Our Design: Our construction system uses alignment jigs (included in your kit), making the build faster, easier and more

6 7/8 turns: 25 3/8"

4 3/8 turns: 14 7/8"

This helix rises 3 3/16" per turn and has a maximum rise of 25 3/8"

Available exit points in the top loop of this helix are at the following vertical rises: 8 1/8 turns: 20 5/8"

5 5/8 turns: 17 "

1 7/8 turns: 7 "

6 3/4 turns: 19 5/8"

This helix rises 2 15/16" per turn and has a maximum rise of 17 3/4"

Available exit points in the top loop of this helix are at the following vertical rises: 2 1/8 turns: 8 "

3 3/8 turns: 12 5/8"

7 turns: 18 3/4"

1 1/4 turns: 6 5/8"