Number of stages

4

Lower limit on R_s

0.95

Upper limit on cost

400

Upper limit on weight

500

Upper limit on volume

250

Operating time

1000 hours

Stage

10⁵ α_i

β_i

v_i

w_i

1

1.0

1.5

1

6

2

2.3

1.5

2

6

3

0.3

1.5

3

8

4

2.3

1.5

2

7