Table 1.

Parametric radius and pitch fits of individual threads of the T = 1.82 fibre to ideal helices.

thread	radius (σee)	pitch (σee )
1	0.939 ± 0.005	32.8 ± 0.4
2	0.960 ± 0.004	30.2 ± 0.9
3	0.942 ± 0.009	31.6 ± 0.7
4	0.923 ± 0.009	33.5 ± 0.8
5	0.976 ± 0.005	30.5 ± 0.4
6	1.017 ± 0.003	31.7 ± 0.4
7	1.637 ± 0.008	32.1 ± 0.3
8	1.734 ± 0.003	31.0 ± 0.3
9	1.726 ± 0.004	31.8 ± 0.2
10	1.626 ± 0.007	33.1 ± 0.3
11	1.640 ± 0.006	31.5 ± 0.2
12	1.669 ± 0.006	31.8 ± 0.3
13	1.890 ± 0.007	31.8 ± 0.9
14	1.907 ± 0.007	32.3 ± 0.3
15	1.980 ± 0.001	31.5 ± 0.2
16	1.949 ± 0.004	32.0 ± 0.3
17	1.974 ± 0.005	31.8 ± 0.1
18	1.868 ± 0.013	33.3 ± 0.1
19	2.511 ± 0.003	32.7 ± 0.1
20	2.484 ± 0.006	33.8 ± 0.2
21	2.458 ± 0.003	30.4 ± 0.2