Information about Desire2Learn courses at the University of Arizona. Learn how to access the program, whats new, how to handle a problem with the system and policies.

Originally known by the Lockheed designation Q-12, the drone was intended for reconnaissance deep into enemy airspace. The D-21 was designed to carry a single high-resolution photographic camera over a preprogrammed path, then release the camera module into the air for retrieval, after which the drone would self-destruct. [1] .

The Lockheed D-21 was a highly-advanced, remotely piloted aircraft (RPA) designed to carry out high-speed, high-altitude strategic reconnaissance missions over hostile territory. Developed by the famed Lockheed "Skunk Works” in the 1960s, the D-21 used technology from the A-12/YF-12/SR-71 “Blackbird” family of high-speed manned aircraft.

Dedicated 2 Building You 1 Better. Enter your email address to sign up for our newsletter. Subscribe

Launched from airborne carrier aircraft, the D-21's Marquardt ramjet engine propelled it at speeds over 2,000 mph (3,200 km/h). The Lockheed M-21 Blackbird "mothership" was designated …

3 天之前 · The Lockheed D-21 wasn’t just fast—it was untouchable. Designed to fly at Mach 3 over enemy territory without a pilot onboard, this Cold War-era drone pushed the limits of stealth and speed.

2019年3月20日 · In short, the Tagboard program exemplified some of the best features of the then-newly established National Reconnaissance Office (NRO): 1) the drone’s planned mission addressed the pressing need for deep penetration of denied areas to obtain timely imagery without risking pilot shoot-down and capture; 2) its design and construction pushed tech...

2022年1月25日 · The D-21 was a reconnaissance drone (Unmanned Aerial Vehicle) offshoot of the Blackbird family, designed to overfly enemy territory by being launched from international airspace. Following launch it flew a preprogrammed course, which concluded by D-21’s return into international airspace.

2016年3月6日 · Fifty years ago, on March 5, 1966, unmanned aircraft made supersonic history when a Lockheed D-21 drone launched off of the back of an M-21 Blackbird traveling Mach 3. The US always wanted...

2025年3月12日 · District 21 consists of 13 schools providing learning spaces for students in grades PK to 8th. We serve more than 6,000 students from Wheeling, Buffalo Grove, Arlington …