KitHelix™ N scale, 1 track, 15.0"/2.90%, 4 turns Helix upgrade spiral direction:Clockwise is upgrade

KitHelix™ N scale, 1 track, 15.0"/2.90%, 4 turns Helix upgrade spiral direction:Clockwise is upgradeThis helix rises 2 3 4" per turn and has a maximum rise of 10 7 8". Available exit points in the top loop of this helix are at the following vertical rises: 3 1 8 turns: 8 1 2", 3 1 4 turns: 8 7 8", 3 3 8 turns: 9 1 4", 3 1 2 turns: 9 5 8", 3 5 8 turns: 9 7 8", 3 3 4 turns: 10 1 4", 3 7 8 turns: 10 5 8", 4 turns: 10 7 8" Our Design: Our construction system uses alignment jigs (included in your kit), making the build faster, easier and more accurate.

5 1/2 turns: 14 7/8"

easier and more accurate

8 3/4 turns: 22 1/4"

7 7/8 turns: 20 "

7 7/8 turns: 20 3/4"

It can grow as you are ready with the addition of other T-TRAK modules

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

8 1/2 turns: 23 1/8"

2 turns: 5 7/8"

5 3/8 turns: 15 5/8"

3 3/4 turns: 10 5/8"

3 3/4 turns: 10 1/8"