Wherever we design new rigging equipment and rigging systems for heavy lift helicopter operations or performer flying the final step is to validate the claims made by OEM suppliers and our own calculated load limits.
We achieve this by destruction testing and proof load testing. What's the difference? Simply explained, destruction testing involves applying forces and measuring the observed yield point or point at which failure of the equipment occurs.
Proof Load Testing is a non destructive testing (NDT) method that is used to validate the data gained from destructive testing and the forces can be applied anywhere in the range of 100% of the rated value to twice the work load limit as defined by local standards and or codes of practice.
In the examples below, the rated work load limit or safe work load limit (SWL, WLL) is a percentage of the failure point or ultimate breaking load (UBL). This percentage is know as the safety factor (SF) and is applied to the UBL. In the case of the 85 tonne bow shackle and chain assembly the safety factor was 4:1 as claimed by the manufacture and was within the 4:1 SF, the point of failure was 4 times the rated WLL (greater than 300 Tonne).
Not all rigging equipment has an included SF and it is up to the professional rigger to apply one. Carabiners for example have a rated load limit stamped on them to identify the SWL/ WLL this is actually the UBL the point it which the carabiner will fail, and we apply a SF of 10:1 for human loads.
So you can see how important it is to know not only the correct gear selection but also what SF if any have been applied to a rigging system and equipment.
Aerial Rigging Designs
Our approach to aerial rigging designs is mindful. There are artistic, safety and financial aspects that all combine to produce the effect.
Our clients and projects over the years have included the 2000 Sydney Olympic Games Opening and Closing ceremonies, Legs on the Wall, Erth, Belvoir Street Theatre, Sydney Theatre Company, Sydney City of Sydney, Sydney Opera House are top name but a few. Here we'll give you a look at our scope of artistic works and give you some insight in to the production of art on a large scale and high risk.
Conditions on the coast were perfect for shooting a helicopter winch rescue scene for a television commercial.
Overcast skies, rough sea state, high winds and relentless rain all in the middle of a Sydney winter made it interesting for the film crew, stunt crew and cast.
Research suggest that the earliest aerial circus apparatus was in fact Bamboo poles. Designing the poles for Integral Aerial Arts Group first involved the selection process of the correct bamboo species and the suitable selection of individual blades or poles of bamboo, then the cutting, drying and curing process can be begin.
Developing methods to connect the rigging point of attachment to the bamboo evolved to a seized and whipped soft rigging system that allowed the pole to be attached at the top and have the base pivot freely on the ground unattached, this system is known as a flying pole and was a lot of fun to train and choreograph.
Designing the rigging system for the Vivid Sydney Festival began with production meetings, CAD drafting parties and lots of coffee!
In collaboration with Electric Canvas, Erth Physical and Visual and Q Motion we developed the system to enable the members of the public to operate the automated winch system that flew the dinosaurs, elements of audio, lighting and projection immersed the space at the Chatswood interchange with a dynamic artistic and interactive installation.
Aero Motion Australia Pty Ltd has built our product range based on daily use of custom made equipment for specific purposes. Everything from Helicopter construction and precision placement of steel and equipment. Aerial Rigging designs and equipment for use in Film, Television, Theatre, Circus and Stunts. See our gallery below.
After extensive operational use in the filed, Aeromotion Australia has designed a purpose built Helicopter Helmet.