KitHelix™ HO scale, 1 track, 26.0"/2.90%, 5 turns outergrade2-68

KitHelix™ HO scale, 1 track, 26.0"/2.90%, 5 turns outergrade2-68This helix rises 4 3 4" per turn and has a maximum rise of 23 3 4". Available exit points in the top loop of this helix are at the following vertical rises: 4 1 8 turns: 19 1 2", 4 1 4 turns: 20 1 8", 4 3 8 turns: 20 3 4", 4 1 2 turns: 21 3 8", 4 5 8 turns: 21 7 8", 4 3 4 turns: 22 1 2", 4 7 8 turns: 23 1 8", 5 turns: 23 3 4" Our Design: Our construction system uses alignment jigs (included in your kit), making the build faster, easier and more

3 7/8 turns: 13 1/8"

8 7/8 turns: 24 7/8"

6 3/8 turns: 22 3/8"

Available exit points in the top loop of this helix are at the following vertical rises: 4 1/8 turns: 18 3/4"

5 1/2 turns: 17 1/2"

6 1/4 turns: 19 5/8"

The DoubleHelix™ comes in two variations

3 5/8 turns: 11 "

4 turns: 10 7/8"

8 3/4 turns: 25 "

3 1/4 turns: 8 1/4"

4 5/8 turns: 17 3/8"