1/17/2024 0 Comments H.tv2 installpack![]() The flight was launched the following day, on 11 August 2011. In mid-November, DARPA stated that the first test flight ended when the computer autopilot "commanded flight termination" after the vehicle began to roll violently.Ī second flight was initially scheduled to be launched on August 10, 2011, but bad weather forced a delay. Contact was lost with the vehicle at nine minutes into the 30-minute mission, and the glider's skin disintegrated. The flight plan called for the craft to separate from the launch vehicle, level out and glide above the Pacific at Mach 20. The HTV-2 was boosted by a Minotaur IV Lite rocket launched from Vandenberg Air Force Base, California the glider was carried inside the nose of the Minotaur IV Lite rocket into outer space with a launch altitude of 100 miles (160 km). The HTV-2 glider was to fly 4,800 miles (7,700 km) across the Pacific to Kwajalein at Mach 20. The HTV-2's first flight was launched on 22 April 2010. The surface temperature of the HTV-2 was expected to reach 1,930 ☌ (3,500 ☏) or more in flight steel melts at 1,370 ☌ (2,500 ☏).įlight testing Launch of HTV-2a on a Minotaur IV Lite rocket Falcon HTV-2 baseline flight test trajectoriesīoth flights reached Mach 20 ( high-hypersonic speed) and lost telemetry at 9 minutes of a planned 30-minute mission. The craft could cover 17,000 kilometres (11,000 mi), the distance between London and Sydney, in 49 minutes.īuilt by Lockheed Martin, the HTV-2 is made of carbon composite material the durability of such material was needed to prevent important internal components from being destroyed because they are a few inches from its surface. The various departments involved in designing the vehicle included aerothermodynamics, materials science, hypersonic navigation, guidance and control systems, endo- and exo-atmospheric flight dynamics, telemetry and range safety analysis. The HCV would have required a lift-to-drag ratio of 6-7 at Mach 10 and 130,000 ft (40,000m).ĭesign DARPA's Falcon Hypersonic Technology Vehicle-2 is arrowhead-shaped.ĭevelopment of protection structures that are tough and lightweight an aerodynamic shape that has a high lift to drag ratio automatic navigation control systems were among the initial technical challenges facing the designers. HTV-2 was to lead to the development of an HTV-3X vehicle, known as Blackswift, which would have formed the basis for deployment around 2025 of a reusable Hypersonic Cruise Vehicle, an unmanned aircraft capable of taking off from a conventional runway with a 5,400 kg (12,000 lb) payload to strike targets 16,650 km away in under 2 hours. The actual lift-to-drag ratio of HTV-2 was estimated to be 2.6. ![]() Under the original plan, HTV-1 was to feature a hypersonic lift-to-drag ratio of 2.5, increasing to 3.5-4 for the HTV-2 and 4-5 for the HTV-3. Both these missions are funded by the US Defense Advanced Research Projects Agency ( DARPA) to help develop hypersonic technologies and to demonstrate its effectiveness. The mission ended within nine minutes from launch. The Falcon HTV-1 program, which preceded the Falcon HTV-2 program, was conducted in April, 2010. It is a test bed for technologies to provide the United States with the capability to reach any target in the world within one hour ( Prompt Global Strike) using an unmanned hypersonic bomber aircraft. Hypersonic Technology Vehicle 2 (HTV-2) is an experimental hypersonic glide vehicle developed as part of the DARPA Falcon Project designed to fly in the Mach 20 range. Experimental hypersonic glide vehicle Hypersonic Technology Vehicle HTV-2 reentry (artist's impression)
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