h b d 5 50 37 4.5 5.438 6.3 63 40 4.8 6.634 6.5* 65 40 4.8 6.709 8 80 43 5 8.045 10 100 48 5.3 10.007 12* 120 53 5.5 12.059 12.6 126 53 5.5 12.318 14a 140 58 6 14.535 14b 140 60 8 16.733 16a 160 63 6.5 17.24 16 160 65 8.5 19.752 18a 180 68 7 20.174 18 180 70 9 23 20a 200 73 7 22.637 20 200 75 9 25.777 22a 220 77 7 24.999 22 220 79 9 28.453 24a* 240 78 7 26.86 24b* 240 80 9 30.628 24c* 240 82 11 34