KitHelix™ N scale, 2 track, 21.0"/2.20%, 23.0"/2.01%, 7 turns Helix upgrade spiral direction:Clockwise is upgrade

KitHelix™ N scale, 2 track, 21.0"/2.20%, 23.0"/2.01%, 7 turns Helix upgrade spiral direction:Clockwise is upgradeThis helix rises 2 7 8" per turn and has a maximum rise of 20 3 8". Available exit points in the top loop of this helix are at the following vertical rises: 6 1 8 turns: 17 3 4", 6 1 4 turns: 18 1 8", 6 3 8 turns: 18 1 2", 6 1 2 turns: 18 7 8", 6 5 8 turns: 19 1 4", 6 3 4 turns: 19 5 8", 6 7 8 turns: 20 ", 7 turns: 20 3 8" Our Design: Our construction system uses alignment jigs (included in your kit), making the build faster, easier and more accurate.

5 7/8 turns: 17 7/8"

6 turns: 16 "

8 5/8 turns: 23 7/8"

8 side panels (6 width panels / 2 depth panels that you select)

6 3/4 turns: 22 3/8"

3 7/8 turns: 13 3/8"

3 3/4 turns: 12 "

5 turns: 21 7/8"

Available exit points in the top loop of this helix are at the following vertical rises: 6 1/8 turns: 16 7/8"

4 7/8 turns: 16 7/8"

7 3/8 turns: 18 7/8"

5 3/8 turns: 14 3/4"