KitHelix™ N scale, 2 track, 20.0"/2.80%, 22.0"/2.55%, 3 turns radius18-0

KitHelix™ N scale, 2 track, 20.0"/2.80%, 22.0"/2.55%, 3 turns radius18-0This helix rises 3 1 2" per turn and has a maximum rise of 10 1 2". Available exit points in the top loop of this helix are at the following vertical rises: 2 1 8 turns: 7 1 2", 2 1 4 turns: 7 7 8", 2 3 8 turns: 8 3 8", 2 1 2 turns: 8 3 4", 2 5 8 turns: 9 1 4", 2 3 4 turns: 9 5 8", 2 7 8 turns: 10 1 8", 3 turns: 10 1 2" Our Design: Our construction system uses alignment jigs (included in your kit), making the build faster, easier and more accurate.

4 3/4 turns: 15 "

5 5/8 turns: 22 1/4"

This helix rises 2 13/16" per turn and has a maximum rise of 19 3/4"

making the build faster

8 7/8 turns: 25 3/8"

7 turns: 21 1/2"

2 5/8 turns: 9 5/8"

9 5/8 turns: 24 3/4"

6 3/4 turns: 21 "

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

8 7/8 turns: 24 1/8"

6 5/8 turns: 17 3/8"