From Janes website, an interesting tidbit about BAMS (1) …
Navy (USN) is revisiting the sense-and-avoid (SAA) capability of the Northrop Grumman MQ-4C Triton high-altitude long-endurance (HALE) unmanned aerial vehicle (UAV) after previous efforts have failed to produce a system that works to the service's satisfaction. US
The navy's efforts to develop and field an SAA system for the MQ-4C have proven to be more challenging than was first anticipated.
This issue has proven to be so problematic that the navy issued a stop-work order to Exelis, which was developing the SAA sensors under contract to Northrop Grumman, while it evaluates alternatives.”
There’s nothing special about this. Developmental challenges are to be expected but it does remind us that even the seemingly mundane features can prove difficult and that should give us pause as we leap into our assumptions about the ease of development of rail guns, lasers, anti-gravity, and telepathic networks.
For all you fanboys of [fill in the blank], remember ComNavOps rule of thumb: a program will be fortunate to achieve half its claimed capabilities at twice the cost.
(1) IHS Jane's Defence Weekly , “US Navy seeks new sense-and-avoid solution for Triton UAV”, Gareth Jennings,
5 November 2014,