Because it is a flying pile of Poo! There are so many issues but the ABM community has been abused for so long they jumped at the first girl without a mustache who paid attention to them. Wedgetail is 20 year old technology mounted on a 49 year old design. The 737 has been engineered to the max extent of its potential thus Wedgetail will have a 20 year old radar flying in the mid 30's. Epically dump for SOOO many reasons. Boeing underbid to get the sole-source, within 12 months they announced they were $400M over and needed help from the govt. The Boeing 737 line has a 10 year backlog and even using National Defense priority, they can't retool fast enough to make Wedgetails fast...our Allies are SCREWED...they are at the end of the line, even behind purchases by other airlines. South Korea is divesting their Wedgetails which should tell you something...you should see their performance on a hot summer day. I can talk about it now...my previous company submitted the same time as Boeing with a proposal to put a brand new radar on a Bombardier that would start at FL47 and step climb to FL51, 12+ hours of endurance (unrefueled), the same number of crew stations as Wedgetail...the detection physics alone moving from FL33 to FL47 are staggering. We submitted an 800 page package with 400 pages of engineering documentation from tests and other work we had done on the Bombardier platform. We received a reply ONE HOUR LATER - not technically viable, they sole-sourced to Boeing the following day. I'm sure they reviewed in depth our input. The system is not screwed, it is corrupt and broken and the ABM community is going to get EXACTLY what they deserve...warm poo.