h

b

d

t

h

b

d

t

10

100

55

4.5

7.2

12.0

9.46

18

180

90

5.1

8.1

23.4

18.4

12

120

64

4.8

7.3

14.7

11.5

18a

180

100

5.1

8.3

25.4

19.9

14

140

73

4.9

7.5

17.4

13.7

20

200

100

5.2

8.4

26.8

21.0

16

160

81

5.0

7.8

20.2

15

20a

200

110

5.2

8.6

28.9

22.7

22

220

110

5.4

8.7

30.6

24.0

40

400

155

8.0

13.0

71.4

56.1

22a

220

120

5.4

8.9

32.8

25.8

45

450

160

8.6

14.2

83.0

65.2

24

240

115

5.6

9.5

34.8

27.3

50

500

170

9.5

15.2

97.8

76.8

24a

240

125

5.6

9.8

37.5

29.4

55

550

180

10.3

16.5

114

89.8

27

270

125

6.0

9.8

40.2

31.5

60

600

190

11.1

17.8

132

104

27a

270

135

6.0

10.2

43.2

33.9

65

650

200

12

19.2

153

120

30

300

135

6.5

10.2

46.5

36.5

70

700

210

13

20.8

176

138

30a

300

145

6.5

10.7

49.9

39.2

70a

700

210

15

24.0

202

158

33

330

140

7.0

11.2

53.8

42.2

70b

700

210

17.5

28.2

234

184

36

360

145

7.5

12.3

61.9

48.6