Table 3: HTPB baseline: optimization procedure. Comparison between the two different techniques implemented to obtain the experimental mean regression rate.

Test number Overall TOT regression rate (9),Integral time-average regression rate (10),Percent variation 𝑟 𝑓 T O T 𝑟 𝑓
𝑟 𝑓 T O T , (mm/s) 𝑟 𝑓 , (mm/s)% 𝑟 𝑓 T O T

1 0.715 0.747 4.4
2 0.659 0.656 0.4
3 0.682 0.690 1 . 0
4 0.616 0.632 2 . 6
5 0.662 0.676 2 . 1
6 0.737 0.760 3 . 0