TWA 6 8 10 12 14 16 20 52 5.2 6.4 7.2 7.7 8.0 8.2 8.4 60 5.7 6.9 7.8 8.2 8.4 8.5 8.7 75 6.2 7.5 8.1 8.5 8.8 9.0 9.2 90 6.5 7.8 8.4 8.7 8.9 9.1 9.4 110 6.4 7.7 8.4 8.8 9.1 9.4 9.9 120 6.0 7.4 8.2 8.7 9.1 9.4 10.0 135 5.1 6.4 7.6 8.2 8.7 9.0 9.7 150 4.2 5.3 6.3 7.2 7.9 8.4 9.1