Runs	coded values				Fuel weight (kg)	$Y_{e f f}$ (%)	$Y_{e m}$ (kg/s)		Boiling time (s)
Runs	$X_{1}$	$X_{2}$	$X_{3}$	$X_{4}$	Fuel weight (kg)	$Y_{e f f}$ (%)	CO boiling	CO simmer	Boiling time (s)
1	−1	−1	−1	−1	0.73	27.5	74.5 × 10⁻⁶	38.8 × 10⁻⁶	2280
2	−1	1	−1	1	0.50	29.5	21.2 × 10⁻⁶	9.67 × 10⁻⁶	1080
3	1	−1	1	−1	1.00	21.1	40.7 × 10⁻⁶	28.8 × 10⁻⁶	3000
4	1	1	−1	−1	0.50	31.0	11.2 × 10⁻⁶	3.00 × 10⁻⁶	1740
5	−1	1	1	−1	0.73	22.4	5.67 × 10⁻⁶	0.83 × 10⁻⁶	2220
6	1	1	1	1	0.73	26.7	22.7 × 10⁻⁶	3.33 × 10⁻⁶	1260
7	−1	−1	1	1	1.00	21.9	34.5 × 10⁻⁶	16.8 × 10⁻⁶	1560
8	−1	1	−1	1	0.50	27.3	0.83 × 10⁻⁶	9.83 × 10⁻⁶	1020
9	−1	1	−1	1	0.50	29.2	19.0 × 10⁻⁶	8.33 × 10⁻⁶	1140
10	1	1	1	1	0.73	27.3	14.0 × 10⁻⁶	3.67 × 10⁻⁶	900
11	−1	−1	1	1	1.00	22.7	13.2 × 10⁻⁶	6.17 × 10⁻⁶	1800
12	1	−1	−1	1	0.73	24.4	14.5 × 10⁻⁶	7.50 × 10⁻⁶	1680
13	−1	−1	−1	−1	0.73	26.1	44.5 × 10⁻⁶	44.5 × 10⁻⁶	2400
14	−1	1	1	−1	0.73	20.9	34.2 × 10⁻⁶	6.67 × 10⁻⁶	1980
15	1	−1	1	−1	1.00	25.9	27.3 × 10⁻⁶	14.5 × 10⁻⁶	2580
16	−1	1	1	−1	0.73	26.0	46.8 × 10⁻⁶	8.83 × 10⁻⁶	1800
17	−1	−1	−1	−1	0.73	23.6	106.2 × 10⁻⁶	74.5 × 10⁻⁶	2940
18	1	−1	−1	1	0.73	23.6	16.8 × 10⁻⁶	10.7 × 10⁻⁶	1440
19	1	−1	1	−1	1.00	24.6	23.2 × 10⁻⁶	12.7 × 10⁻⁶	2880
20	1	1	−1	−1	0.50	29.5	8.33 × 10⁶	6.50 × 10⁻⁶	1860
21	1	1	1	1	0.73	29.0	11.0 × 10⁻⁶	0.83 × 10⁻⁶	840
22	−1	−1	1	1	1.00	24.4	73.3 × 10⁻⁶	22.7 × 10⁻⁶	1020
23	1	−1	−1	1	0.73	25.9	22.3 × 10⁻⁶	18.0 × 10⁻⁶	1860
24	1	1	−1	−1	0.50	29.8	20.5 × 10⁻⁶	13.7 × 10⁻⁶	2040