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Lesson # 1 Compute the Mechanical Advantage of pulleys with 1, 2 or 4 parts of line  Lesson # 2 Use the formula to find the Center of Gravity for an off-centered load  Lesson # 3 Decide on a value for RM/OTM and compute the counter weight and its distance from the fulcrum  Lesson # 4 For a given load and boom angle, compute the Tension in the boom line using the Sine function  Lesson # 5 Determine the best sling angle for a given load  Lesson # 6 Use trig to find the overturning moment (Clockwise CW) and righting moment (Counter-clockwise CCW)  |