BM1 SWE Flashcards
A working or service anchor should have the holding power equal to approx. _____ of the boat’s displacement.
6%
A storm anchor should be at least ______ as effective as the service anchor.
150-200%
Parts of an anchor:
Shank, Flukes, Crown, Stock
Anchor scope (regular and hwx)
Regular between 5-7:1 ; heavy wx use 10:1
Four rules of risk management
Integrate risk management into planning & execution
Accept no unnecessary risks
Make risk decisions at appropriate level
Accept risks if benefits outweigh the costs, eliminating unnecessary risk leaves risk that is either acceptable or unacceptable for mission accomplishment.
ORM Model
1.) Define the mission
2.) Identify hazards
3.) Assess the risk
4.) Identify options
5.) Accept risk
6.) Outome
7.) Monitor situation
How many tucks for natural 3 strand splicing?
3
How many tucks for sythetic 3 strand splicing?
4
What is “x” when splicing DBN?
Core extraction
What is mark 1 when splicing DBN?
On the core when it comes out of the cover
What is mark 2 when splicing DBN?
Short fid length, down core into cover
Small stuff is ______
1.5” or less in circumference
Line is _______
1.5” - 5” in circumference
Hawser is _______
5” + in circumference
% of BS lost in square knot
46%
% of BS lost in bowline
37%
% of BS lost on two bowlines (eye to eye)
43%
% of BS lost in single and double becket bend
41%
% of BS lost in round turn
30-35%
% of BS lost in timber hitch
30-35%
% of BS lost in clove hitch
40%
% of BS lost in eye splice
5-10%
% of BS lost in short splice
15%
Channel 16
International hailing & distress 2182 khz;156.8 mhz