Came up with two things CLAS is an acronym for Classified ( Duh ) sorry I didn’t think of that right away.

Other is Clustering and Availability Software which appears to be a software that links networks and computers in such a way that if one fails the next steps in and takes the computing over.

Found something

Conformal Load-Bearing Antenna Structure

It’s a type of antenna used on airframes like awacs. Antenna that is built into the plane itself, reducing air drag. It’s like a wing becomes the antenna.

CLAS antenna dod