Section 6 Shaft Brackets

601. Design loads and acceptable stress levels

1. The following load conditions are to be considered :

(1) Most unfavourable side forces in a turn at full speed.

(2) Maximum bending moments and forces arising at full power.

(3) Maximum bending moments and forces arising with one propeller blade tip outside 0.9

missing.

602. Twin arm brackets

1. Twin brackets are to have an angle between the legs of at least 50°

2. Minimum plate thickness of at least 1.5 times rule requirement for shell plating.

Pt 4 Hull Equipment

Ch 2 Hull Appendages Pt 4, Ch 2

603. Single arm brackets

Minimum plate thickness is to be at least 2 times the rule requirement for shell plating.