eva_adams68•15d agoProlific Poster

Rant: guys, please stop eyeballing your boom angle on the lift plan

I was helping a friend review a lift plan for a bridge beam set in Portland, and he had the boom angle at 70 degrees just because it 'looked right' on the drawing. We ran the numbers with the crane's load chart and the actual radius, and at that angle we were sitting at 92% capacity before factoring in the rigging. That's way too close for comfort, especially with any wind. I've seen too many near misses start with a guess on the paperwork. How do you all double check your angles before the pick?

3 comments

3 Comments

white.blair15d ago

Remember my first solo lift plan, I totally did the same thing. Got a real quick lesson in trigonometry from a grumpy old hand when the crane showed up. Now I just use the app on my phone like everyone else, it's too easy not to.

riley_miller2515d ago

Which app do you use, the free one or the paid version?

williamm8214d ago

So which app are you talking about exactly? There's a few out there for rigging and lift planning. I tried a free one a while back but it was pretty basic, it wouldn't let me save my plans. The paid version of that same app had way more features, like adding custom equipment. Is that the kind of difference you're looking at?