KitHelix™ N scale, 2 track, 18.0"/2.50%, 20.0"/2.25%, 4 turns Helix upgrade spiral direction:Clockwise is upgrade

KitHelix™ N scale, 2 track, 18.0"/2.50%, 20.0"/2.25%, 4 turns Helix upgrade spiral direction:Clockwise is upgradeThis helix rises 2 13 16" per turn and has a maximum rise of 11 1 4". Available exit points in the top loop of this helix are at the following vertical rises: 3 1 8 turns: 8 7 8", 3 1 4 turns: 9 1 4", 3 3 8 turns: 9 1 2", 3 1 2 turns: 9 7 8", 3 5 8 turns: 10 1 4", 3 3 4 turns: 10 5 8", 3 7 8 turns: 11 ", 4 turns: 11 1 4" Our Design: Our construction system uses alignment jigs (included in your kit), making the build faster, easier and more accurate.

6 7/8 turns: 25 3/8"

5 5/8 turns: 21 1/4"

3 7/8 turns: 12 3/8"

4 1/4 turns: 15 "

This helix rises 3 7/16" per turn and has a maximum rise of 20 3/4"

5 7/8 turns: 22 1/8"

5 3/4 turns: 16 1/8"

4 1/2 turns: 13 1/4"

Helix tiles are designed to only connect in one orientation which simplifies helix construction

4 top panels that secure together to create the sub-roadbed

4 3/4 turns: 14 1/2"

3 1/4 turns: 10 1/4"