MOMENT [KNm]

Position of boom

→ + 

Moment(boom side)

- →

Moment(Counter weight)

↔

Deduction moment

I

in pipe-line

→

2,080 kNm

←

1,205 kNm

→

875 kNm

II

in pipe-line

 →

1,165 kNm

← 

1,205 kNm

←

40 kNm

MOMENT [KNm]

In operation : 33,400 Kg

 MOMENT [KNm]

Position of boom

Wind-exposed area 

Center of gravity distance

remark

I

II

--

30.5 M² / boom-side

29.7 M² / boom-side

6.3 M² / Counter weight-side

Xs I = 14.9 m

Xs II = 10.2 m

Xs B = 7.5 m

Wind surface perpendicular 

to frontal wind

I/II 

3.3 M²

Ys = 1.6 m 

Exposed area in 

frontal wind

Absolute altitude [m]

0-8

80-20

20-100

100 over

W [kNm2]

800

1280

1760

2080