KitHelix™ N scale, 1 track, 21.0"/2.10%, 2 turns radius20-0

KitHelix™ N scale, 1 track, 21.0"/2.10%, 2 turns radius20-0This helix rises 2 3 4" per turn and has a maximum rise of 5 1 2". Available exit points in the top loop of this helix are at the following vertical rises: 1 1 8 turns: 3 1 8", 1 1 4 turns: 3 1 2", 1 3 8 turns: 3 3 4", 1 1 2 turns: 4 1 8", 1 5 8 turns: 4 1 2", 1 3 4 turns: 4 7 8", 1 7 8 turns: 5 1 4", 2 turns: 5 1 2" Our Design: Our construction system uses alignment jigs (included in your kit), making the build faster, easier and more accurate.

5 1/4 turns: 18 5/8"

4 3/8 turns: 15 "

the parts simply glue together

5 1/2 turns: 14 5/8"

This helix rises 2 13/16" per turn and has a maximum rise of 22 3/8"

5 1/4 turns: 16 3/4"

This helix rises 2 9/16" per turn and has a maximum rise of 20 3/4"

3 1/2 turns: 13 3/8"

3 3/4 turns: 13 7/8"

3 3/8 turns: 11 5/8"

7 1/4 turns: 18 3/4"

6 7/8 turns: 18 3/8"