UM-0203
Rev 1.1
20 | P a g e
3.11
Control of Lifting Assembly
The FROG-XT6-P is designed to stay firmly on the deck of the vessel whilst passengers are
entering or leaving the carrier. The Crane Operator must maintain slack in the line upon
landing to allow for the vessel movement.
Table 4 Control of lifting assembly
Parameter
Recommendation
Ideal Sling Length
The recommended limits in this section are based on the use
of the standard wire rope lifting assembly length of 30 ft
(9 m).
Table 5 Sling lengths
Sling Length
Recommended
Slack
Allowable Drift
Distance to the
Crane Hook
30 ft
10 ft
22.4 ft
20 ft
Figure 5 Lifting assembly slack