KitHelix™ N scale, 2 track, 17.0"/2.40%, 19.0"/2.15%, 8 turns outergrade2-68

KitHelix™ N scale, 2 track, 17.0"/2.40%, 19.0"/2.15%, 8 turns outergrade2-68This helix rises 2 9 16" per turn and has a maximum rise of 20 1 2". Available exit points in the top loop of this helix are at the following vertical rises: 7 1 8 turns: 18 1 4", 7 1 4 turns: 18 5 8", 7 3 8 turns: 18 7 8", 7 1 2 turns: 19 1 4", 7 5 8 turns: 19 1 2", 7 3 4 turns: 19 7 8", 7 7 8 turns: 20 1 4", 8 turns: 20 1 2" Our Design: Our construction system uses alignment jigs (included in your kit), making the build faster, easier and more

¼” birch plywood is strong yet light-weight for easy transport and storage

3 5/8 turns: 9 1/4"

Available exit points in the top loop of this helix are at the following vertical rises: 3 1/8 turns: 10 3/4"

4 3/4 turns: 13 1/4"

7 3/4 turns: 21 3/8"

5 1/4 turns: 17 7/8"

5 turns: 17 5/8"

7 turns: 19 1/2"

7 1/4 turns: 21 1/2"

Available exit points in the top loop of this helix are at the following vertical rises: 5 1/8 turns: 17 5/8"

3 5/8 turns: 11 3/4"

4 7/8 turns: 15 3/8"