DARPA Manta Ray UUV prototype built by Northrop Grumman completes in-water testing

Evidence notes

• DARPA said the Manta Ray uncrewed underwater vehicle prototype built by Northrop Grumman completed full-scale in-water testing.
• Testing demonstrated submerged operations using buoyancy, propellers and control surfaces after modular shipment and field assembly.
• The milestone validates Northrop Grumman's extra-large UUV work for persistent undersea autonomy.