What does DRED stand for?

Daily Readiness - Testing (MCD)

Data Routing and Error Detecting (or Detector) (SAUS)

Deferred Requisitioning of Engineering Drawings (SAUS)

Detection RADAR Environmental Display - Air Force

Detection RADAR - Radio Detection and Ranging Environment Display - Military technology (DDF)

Directed Rocket Engine Demonstrator

Dredger (SAUS)

Dredging (SAUS)

Ducted Rocket Engine Development (MCD)