The first delivery of the Helios Stackable Rack System occurred in late November, 2018. This system consists of 6U and 14U modules that can stack 2-high in any order. The system can be longitudinal or transverse-mounted, and can fit in many aircraft types.
Pictured below is a stack of (2) 14U modules being test fit in the aft cargo area of a DeHavilland Dash 8. Each 14U module, in this configuration, can be loaded with 200 lbs. of payload. Both modules are weight-optimized, have integral carrying handles, and replaceable mounting rails.
The picture below shows a 14U+6U stack, mounted in a King Air 200. This configuration uses the top 6U module to house pullout monitors and other operator-facing equipment.
