By Dennis R Jenkins, Tony Landis, Jay Miller
For your time, it appeared the sequence of experimental airplane subsidized through the U.S. executive had run its direction. among the past due Nineteen Forties and the past due Seventies, nearly thirty designations were allotted to plane intended to discover new flight regimes or untried applied sciences. Then, mostly, it ended. yet there has been a resurgence within the mid- to past due- Nineties, and as we input the fourth yr of the recent millennia, the designations are as much as X-50.
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Extra resources for American X-Vehicles: An Inventory-X-1 to X-50
Total Flights (X-35A): 27 Total Flights (X-35B): 39 Total Flights (X-35C): 73 The first of the X-35 demonstrators. Despite being completely different, there is a strong family resemblance to the Lockheed F/A-22 Raptor. (Lockheed Martin via the Tony Landis Collection) The X-35 was the Lockheed Martin Joint Strike Fighter (JSF) demonstrator, competing with the Boeing X-32. In November 1996 Boeing and Lockheed Martin were awarded contracts to build two Concept Demonstrator Aircraft (CDA)—one Conventional Take-Off and Landing (CTOL) version and one Short Take-Off and Vertical Landing (STOVL) version—each.
Both completed airframes are in storage at the NASA Johnson Space Center in Houston. 48 American X-Vehicles: An Inventory X-1 to X-50 Air Force Research Laboratory X-39 First Flight: Pending Sponsors: USAF Last Flight: Not Applicable Fastest Flight: Not Applicable Total Flights: Not Applicable Highest Flight: Not Applicable Speculative artist concept of a possible unmanned aerial vehicle that could be similar to the X-39. S. Air Force via the Dennis R. Jenkins Collection) The X-39 designator was apparently reserved for use by the Air Force Research Laboratory for subscale unmanned demonstrators originally planned under the Future Aircraft Technology Enhancements (FATE) program.
76 (1,164 mph) Total Flights: 36 Highest Flight: 74,140 feet Underneath the sleek skin of the X-24B lurked the original X-24A. The streamlined shape was designed by the Air Force Flight Dynamics Laboratory as the FDL-7/FDL-8. (Martin Marietta via the Jay Miller Collection) Although the X-24A program successfully met all of its objectives, engineers and scientists at the Air Force Flight Dynamics Laboratory (FDL) wanted to conduct similar tests on an even more advanced lifting-body shape called the FDL-7/FDL-8.