Recent content by ted potts

I've attached the PDF which is slightly clearer than the image

Hi I'm working on a project out in the North Sea on an oil rig, we need to remove a hydraulic cylinder from a crane, I have attached a drawing the red cylinder B needs to be removed. To do this we will move the crane boom to the position shown by the orange lines and rest the end down on the...

Hi, yes that is correct, especially in a scenario where the anchor points are at equal heights and the load is in the middle horizontally, as a rule of thumb we say 90^ chain angle = 70% load on each anchor, and 120^ = 100% load on each anchor, however when anchors are at different heights the...

Hi, Thanks everyone for taking the time out to help me with this, however I'm still rather stuck, I think it may be the letters in the equation that are throwing me off, I have a casio fx-85gt plus calculator, could anyone write this out in single calculations? with the answers in kilograms...

Hi folks, I'm a construction worker helping to destruct an oil platform out in the north sea, I often have to work out weights applied on lifting slings during cross hauling scenarios like the one drawn here, I know 2 ways of working this out already; 1 using a calculation of all the triangles...