KitHelix™ N scale, 2 track, 18.0"/2.30%, 20.0"/2.07%, 10 turns Helix upgrade spiral direction:Clockwise is upgrade

KitHelix™ N scale, 2 track, 18.0"/2.30%, 20.0"/2.07%, 10 turns Helix upgrade spiral direction:Clockwise is upgradeThis helix rises 2 5 8" per turn and has a maximum rise of 26". Available exit points in the top loop of this helix are at the following vertical rises: 9 1 8 turns: 23 3 4", 9 1 4 turns: 24 ", 9 3 8 turns: 24 3 8", 9 1 2 turns: 24 3 4", 9 5 8 turns: 25 ", 9 3 4 turns: 25 3 8", 9 7 8 turns: 25 5 8", 10 turns: 26 " Our Design: Our construction system uses alignment jigs (included in your kit), making the build faster, easier and more accurate.

This helix rises 2 3/4" per turn and has a maximum rise of 19 1/2"

This helix rises 2 3/4" per turn and has a maximum rise of 5 1/2"

4 1/4 turns: 11 3/8"

7 1/2 turns: 21 1/8"

Build the helix in comfort on a workspace then integrate to the layout

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

5 3/8 turns: 17 1/4"

6 1/2 turns: 24 "

7 1/2 turns: 20 7/8"

Helix tiles (minimum 8 per loop) with engraved track centerlines for easy laying of subroadbed and track

6 1/2 turns: 18 1/4"

This helix rises 2 11/16" per turn and has a maximum rise of 24 1/4"