KitHelix™ N scale, 2 track, 19.5"/2.10%, 21.5"/1.90%, 8 turns Helix upgrade spiral direction:CounterClockwise is upgrade

KitHelix™ N scale, 2 track, 19.5"/2.10%, 21.5"/1.90%, 8 turns Helix upgrade spiral direction:CounterClockwise is upgradeThis helix rises 2 9 16" per turn and has a maximum rise of 20 5 8". Available exit points in the top loop of this helix are at the following vertical rises: 7 1 8 turns: 18 3 8", 7 1 4 turns: 18 5 8", 7 3 8 turns: 19 ", 7 1 2 turns: 19 1 4", 7 5 8 turns: 19 5 8", 7 3 4 turns: 20 ", 7 7 8 turns: 20 1 4", 8 turns: 20 5 8" Our Design: Our construction system uses alignment jigs (included in your kit), making the build faster, easier and more accurate.

6 3/4 turns: 23 1/8"

Available exit points in the top loop of this helix are at the following vertical rises: 4 1/8 turns: 15 1/8"

Available exit points in the top loop of this helix are at the following vertical rises: 7 1/8 turns: 19 1/2"

This helix rises 3 11/16" per turn and has a maximum rise of 22 1/8"

6 5/8 turns: 17 7/8"

6 1/2 turns: 22 1/2"

4 1/2 turns: 11 1/2"

3 1/2 turns: 10 7/8"

7 7/8 turns: 22 5/8"

This helix rises 3 7/16" per turn and has a maximum rise of 10 1/4"

8 turns: 21 "

4 7/8 turns: 16 7/8"