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GTD-21 Drone
GTD-21 Drone

GTD-21 Drone

GTD-21 Drone company "Lockheed" for a long time was an unknown UAV, at least until the end of the year 1976 when multiple copies were found in the parking lot utilization and storage of the Air Force Center at the air base Davis-Monthan.

The first official mention of the bespilotnike refer to the end of October 1977, when AW & ST magazine wrote an article about it. The new aircraft was conceived as a small-sized prototype for the original flight test engineering features which formed the basis of A-11. Between 64 67-till-Year manufactured 38 units of such equipment, which are temporarily engaged in intelligence activities before the SR-71. But according to other sources, more likely to develop a new UAV has been associated with damage to the Scout U-2 Soviet missile over Sverdlovsk. The president personally appealed to the leadership of the CIA with a request not to carry out manned reconnaissance operations on the territory of the USSR. Experts from the "Lockheed" was offered to use the "Starfighter" in QF-104 type. But after some considerations, the proposal was rejected.

The CIA has given the task to create a new UAV for Tagboard program (October 10 1962 years), which should be designated as Q-12. But after some time the name was changed to D-21 «Daughter," which is designed by the same team. On the basic engineering characteristics of the "daughter" - is derived from the A-12. Unmanned aircraft built almost all of titanium. Unlike its predecessor, he could at an altitude of more than 30 km reach speeds equal to M = 3,6 with a range of 2000 km. D-21 had much better characteristics aerodynamic shapes, so its effective area dispersion was reduced, leading to a high aerodynamic quality.

The new UAV was to perform high-altitude razdevatelnye action in hostile airspace. At the end of the assignment was to drop the BA film with the data, and the self-destruct. D-21 designed as a one-time drone, so his recovery and re-use is not planned. The last phase of the job meant reset 192-pound container. With this device placed engineers front wing bending line in the lower part of the fuselage. Aircraft Painting was black, like the SR-71. Thus radar visibility decreased and increased heat dissipation from the surface of the fuselage.

In experimental flying machines equipped with PRVD tested, which confirmed the suspicion about the designers the possibility of rejection of Turbojet J-58. The basis of the engine took RJ43-MA-11, which is widely used in the SAM Bomarc IM-99B. In order to apply this type of engine in the UAV based on the low-pressure and high temperature has been increased engine altitude and cruise speed.

In December, the first model D-62 was performed 21-year. He was immediately transferred to the landfill to determine the EPR. For the implementation of the future launch of the new UAV was designed and built by two carriers. They are designated as M-21 and called "Mother Goose." UAV mounted above the rear part of the vehicle. Directly in flight before disconnecting from the M-21 nozzle of the engine and the air intake D-21A were covered with fairings. Code carrier aircraft reached a speed of M = 3,2, which meant pryamotochnika optimal operation, carried out drone detachment. BA Office is the second member of the crew.

For the first time in the air M-21 climbed the first of April 64-year, and he rose with the D-22A December 21. Then the drone flew 278 km. 4-th launch of the "Daughters" was unsuccessful because of asthma was under the shock wave of the carrier and collided with him. Test pilot catapulted and the operator. Due to the accident the second carrier is no longer used and is now in the museum. This design is not over. A short time later he was released D-21V rocket booster.

GTD-21 Drone. Characteristics:

Modification D-21
Wingspan, m 5.87
Aircraft Length m 12.33
Height, m 2.19
Weight, kg 4990
engine's type 1 ramjet Marquardt RJ43-MA-11
Thrust, kgf X 1 680
The maximum speed M 3.30
Practical range, km 4830
Practical ceiling, m 29000


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