KitHelix™ N scale, 2 track, 19.0"/2.40%, 21.0"/2.17%, 9 turns 6turn

KitHelix™ N scale, 2 track, 19.0"/2.40%, 21.0"/2.17%, 9 turns 6turnThis helix rises 2 7 8" per turn and has a maximum rise of 25 3 4". Available exit points in the top loop of this helix are at the following vertical rises: 8 1 8 turns: 23 1 4", 8 1 4 turns: 23 5 8", 8 3 8 turns: 24 ", 8 1 2 turns: 24 3 8", 8 5 8 turns: 24 3 4", 8 3 4 turns: 25 1 8", 8 7 8 turns: 25 3 8", 9 turns: 25 3 4" Our Design: Our construction system uses alignment jigs (included in your kit), making the build faster, easier and more accurate.

6 1/2 turns: 17 3/4"

4 1/2 turns: 12 1/4"

1 5/8 turns: 4 5/8"

8 turns: 23 7/8"

The DoubleHelix™ for set-track and flex-track

5 7/8 turns: 16 3/8"

7 5/8 turns: 19 3/4"

5 3/4 turns: 20 1/2"

6 5/8 turns: 17 1/4"

This helix rises 3 7/16" per turn and has a maximum rise of 17 1/8"

3 3/8 turns: 11 5/8"

5 3/8 turns: 14 3/4"