KitHelix™ N scale, 1 track, 18.5"/3.00%, 4 turns Helix upgrade spiral direction:Clockwise is upgrade

KitHelix™ N scale, 1 track, 18.5"/3.00%, 4 turns Helix upgrade spiral direction:Clockwise is upgradeThis helix rises 3 1 2" per turn and has a maximum rise of 14". Available exit points in the top loop of this helix are at the following vertical rises: 3 1 8 turns: 10 7 8", 3 1 4 turns: 11 3 8", 3 3 8 turns: 11 3 4", 3 1 2 turns: 12 1 4", 3 5 8 turns: 12 5 8", 3 3 4 turns: 13 1 8", 3 7 8 turns: 13 1 2", 4 turns: 14 " Our Design: Our construction system uses alignment jigs (included in your kit), making the build faster, easier and more accurate.

8 7/8 turns: 24 5/8"

4 3/8 turns: 13 "

5 3/8 turns: 16 1/2"

Custom cut spacer blocks based on specific grade of your helix

8 3/8 turns: 22 "

Available exit points in the top loop of this helix are at the following vertical rises: 4 1/8 turns: 11 7/8"

NMRA Standard side clearance of 1”

6 turns: 16 7/8"

5 3/8 turns: 17 3/8"

Available exit points in the top loop of this helix are at the following vertical rises: 7 1/8 turns: 21 1/4"

Available exit points in the top loop of this helix are at the following vertical rises: 3 1/8 turns: 9 5/8"

7 3/8 turns: 20 7/8"