The Container is the second key component of a Rig. While the Container is a single construction with the Harness, its role is to house the Main and Reserve Canopies whereas the Harness is designed to fit the wearer.
Many thanks to Tom Hill for writing this article and for taking the pics.
The Container is designed to fit a specific range and type of Canopies. Always refer to the container manufacturer to confirm which sizes will fit into it. The size of the Canopy can be measured in Square Feet and Pack Volume. A Canopy (or set of canopies as mentioned in Compatibility) that is too tight for the Container may not deploy at all whereas a Canopy that is too small could deploy prematurely as it does not apply enough pressure on the closing pin.
Tuck Tab Riser Covers
The standard option on most modern sports skydiving equipment. This system uses tuck tabs to secure the Riser Covers and ensure they remain secure until the Main Canopy is deployed. Older equipment uses Velcro which wears out over time and can damage the Harness and Container through abrasion.
Figure 15: Tuck Tab Riser Covers (left) and Magnetic Riser Covers (right) prior to closing. Note the 2 discs in the photo on the right which are the magnets.
Magnetic Riser Covers
An optional extra. The magnets secure the Riser Cover better than standard Tuck Tabs meaning the Riser Cover is less likely to come open in free fall. Some Speed Skydiving Coaches list them as a mandatory piece of equipment if you are doing Speed Skydiving and require 3 magnets.
Internal Riser Covers
An optional extra that protects the Riser and Brakes within the Container.
Dynamic Corners/Cut Out Corners
A specialist option designed for Wingsuit Skydiving. The corners of the Main Deployment Tray are not joined in a box shape to allow an easier lateral extraction of the Main Deployment Bag and Canopy.
Figure 16: The bottom of a rig with Dynamic Corners, note it is not sewn in a box shape. © David Fullstone.
Pin Stripes, Tie Dye, Binding Tape Colour
These are cosmetic options that do not affect the performance of the equipment. On new equipment, you can customise to your liking however customisations are often not included in the base price.
Skydiving Containers are generally made from Cordura® Nylon however, other materials are now available for example Ballistic Nylon. The material properties vary so do confirm them with the manufacturer. Generally, Cordura ® is more abrasion resistant whereas Ballistic Nylon is more tear resistant. In any case, a well maintained container will last for 1000’s of jumps.
Figure 17: Weave of Ballistic Nylon. © David Fullstone.