Here's a Wikipedia link to the U.S. Department of Defense Aerospace Vehicle Designations. The designations are broken down into several categories: Aerospace Vehicle Designations
Unmanned aircraft like the Global Hawk and improved satellites may be responsible for the rumored cancellation of the Aurora project. Check out the mission paintings on the fuselage: Wikipedia - Global Hawk Also, check out these unmanned aircraft from Northrop Grumman. The X-47B fits...
It wasn’t that long ago when the F-117A Nighthawk Stealth Fighter and the B-2 Spirit Stealth Bomber were classified aircraft. Mysterious night time sightings were reported as UFOs. Now they fly in broad daylight over the Super Bowl. Will we eventually have Aurora (aka SR-91) flyovers at...