# Recent content by Delbert

1. ### Rigging Math ?

This is a center of gravity of a three-dimentional load problem. I would start by finding the COG of the truss and use that to calculate the load on each of the two suspension points. Then do the same for the lighting instruments. The higher lineset/point will be holding the most weight because...
2. ### UNLV's EED Program -- Reviewers Needed!

Mike- Call me. Shoot me a PM for my phone number. Delbert Hall
3. ### Tying knots in aircraft cable.

I am working on an article that describes, step-by-step, how to tie several knots and quick splices in cable. I have done destructive testing to verify the holding capacity of each knot/splice.
4. ### Tying knots in aircraft cable.

This is my photo and people have correctly identified it as a circus hitch. It will hold 60% of the BS of the cable. It is one of several knots that can be tied in small diameter 7x19 GAC. I am tested the efficiency of several other knots in wire rope. Some can hold up to 100% of the BS of...
5. ### Rope locks/cleats/"bunny ears" for pick-lines at the grid: Who has a good design?

Dave's Rabbit ears look great and I see no problem using 3/4" ply instead of 2x6s. We ones I saw were used in TX were made of 2x6s so that is how I make mine. The plywood needs to be cabinet makers 7 layer plywood, not just crappy construction plywood. One nice thing about the 2x6s is that it...
6. ### How can I make an actor climb up a wall?

We can rig this effect for you. Email me at [email protected] All of our flying directors are certified riggers and we have many years of experience (almost 29 for me) flying all types of performers in all manner of ways. We can rig your performer to climb the wall like a Spiderman would...
7. ### D2 Flying Effects based out of Tennessee

Thank you. Nice to be here. The rigging part of flying performers, is not that difficult (although some of the equipment can be expensive). It is the ART of flying performers that is difficult. Plus, you are responsible for what you rig. When you hire a professional flying effects company...