KitHelix™ N scale, 1 track, 19.5"/2.20%, 4 turns Helix upgrade spiral direction:CounterClockwise is upgrade

KitHelix™ N scale, 1 track, 19.5"/2.20%, 4 turns Helix upgrade spiral direction:CounterClockwise is upgradeThis helix rises 2 11 16" per turn and has a maximum rise of 10 3 4". Available exit points in the top loop of this helix are at the following vertical rises: 3 1 8 turns: 8 3 8", 3 1 4 turns: 8 3 4", 3 3 8 turns: 9 1 8", 3 1 2 turns: 9 3 8", 3 5 8 turns: 9 3 4", 3 3 4 turns: 10 1 8", 3 7 8 turns: 10 1 2", 4 turns: 10 3 4" Our Design: Our construction system uses alignment jigs (included in your kit), making the build faster, easier and more accurate.

Precision cut parts from birch plywood

4 1/4 turns: 13 7/8"

7 turns: 20 "

5 5/8 turns: 15 7/8"

3 5/8 turns: 13 3/8"

3 3/4 turns: 12 "

8 7/8 turns: 23 3/4"

6 7/8 turns: 23 5/8"

5 3/8 turns: 18 "

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

This helix rises 2 7/8" per turn and has a maximum rise of 22 7/8"

7 7/8 turns: 23 5/8"