KitHelix™ N scale, 1 track, 20.5"/2.40%, 3 turns Helix upgrade spiral direction:CounterClockwise is upgrade

KitHelix™ N scale, 1 track, 20.5"/2.40%, 3 turns Helix upgrade spiral direction:CounterClockwise is upgradeThis helix rises 3 1 16" per turn and has a maximum rise of 9 1 4". Available exit points in the top loop of this helix are at the following vertical rises: 2 1 8 turns: 6 5 8", 2 1 4 turns: 7 ", 2 3 8 turns: 7 3 8", 2 1 2 turns: 7 3 4", 2 5 8 turns: 8 1 8", 2 3 4 turns: 8 1 2", 2 7 8 turns: 8 7 8", 3 turns: 9 1 4" Our Design: Our construction system uses alignment jigs (included in your kit), making the build faster, easier and more accurate.

This helix rises 2 7/8" per turn and has a maximum rise of 17 1/4"

6 7/8 turns: 19 1/4"

2 7/8 turns: 8 "

6 7/8 turns: 20 1/2"

1 5/8 turns: 5 7/8"

3 3/8 turns: 10 7/8"

This helix rises 2 3/4" per turn and has a maximum rise of 22 1/4"

5 3/8 turns: 14 3/8"

This helix rises 2 5/8" per turn and has a maximum rise of 21 1/8"

Spacer Block design includes designated spacer locations for strong support of every loop of the helix

7 turns: 19 5/8"

6 7/8 turns: 18 3/8"