KitHelix™ N scale, 2 track, 19.0"/2.80%, 21.0"/2.53%, 3 turns innerradius18-5

KitHelix™ N scale, 2 track, 19.0"/2.80%, 21.0"/2.53%, 3 turns innerradius18-5This helix rises 3 5 16" per turn and has a maximum rise of 10". Available exit points in the top loop of this helix are at the following vertical rises: 2 1 8 turns: 7 1 8", 2 1 4 turns: 7 1 2", 2 3 8 turns: 8 ", 2 1 2 turns: 8 3 8", 2 5 8 turns: 8 3 4", 2 3 4 turns: 9 1 4", 2 7 8 turns: 9 5 8", 3 turns: 10 " Our Design: Our construction system uses alignment jigs (included in your kit), making the build faster, easier and more accurate. Precision

6 3/4 turns: 22 5/8"

3 3/4 turns: 12 1/8"

6 1/4 turns: 17 1/2"

4 7/8 turns: 15 1/8"

9 3/4 turns: 25 1/4"

This helix rises 2 15/16" per turn and has a maximum rise of 17 5/8"

1 3/4 turns: 5 3/8"

This helix rises 3 5/16" per turn and has a maximum rise of 19 7/8"

This helix rises 3 15/16" per turn and has a maximum rise of 19 3/4"

3 7/8 turns: 10 "

5 1/4 turns: 15 7/8"

2 7/8 turns: 10 3/8"