By Dennis R Jenkins, Tony Landis, Jay Miller
For it slow, it appeared the sequence of experimental airplane subsidized by way of the U.S. executive had run its direction. among the overdue Forties and the past due Nineteen Seventies, virtually thirty designations were allotted to airplane 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- Nineteen Nineties, and as we input the fourth 12 months of the hot millennia, the designations are as much as X-50.
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Extra info for American X-Vehicles: An Inventory-X-1 to X-50
NASA then awarded a contract to Northrop to build a metal version called the M2-F2, powered by a Reaction Motors XLR11 rocket engine left over from the X-15 program. After a serious crash on 10 May 1967 the airframe was rebuilt as the M2-F3 with a central vertical stabilizer that largely cured an earlier stability problem. The HL-10 was a totally different shape, but shared many common systems with the M2-F2/3 and was also powered by an XLR11. Its first flight was on 22 December 1966, and the HL-10 would ultimately become the fastest and high est flying of the manned lifting bodies.
DoD would select one or both contractors for the second phase to complete the development and demon stration of critical UCAV-N system technologies. The UCAV-N program takes advantage of the work carried out under the DARPA/USAF UCAV program. However, the naval program adds surveillance to the mission set, and will include a significant focus on issues of naval shipboard integration. Initially, the program will emphasize a vehi cle that can be launched from existing aircraft carriers using the standard catapult, and recovered using the existing arresting system.
The X-24A decisively demonstrated that lifting-bodies could consistently make pre cision landings onto a hard runway, proving the concept for the future Space Shuttle. Only a single X-24A was manufactured, but two extremely similar jet-powered SV-5Js were also built. The SV-5Js were to be powered by a single J60 turbojet engine and used as trainers to introduce pilots to the low-speed handling characteristics of lifting-bodies, but in the end neither aircraft ever flew. One of the SV-5Js is on display at the Air Force Academy near Colorado Springs, Colorado, while the other has been superficially modified into an X-24A and is on display at the Air Force Museum.
American X-Vehicles: An Inventory-X-1 to X-50 by Dennis R Jenkins, Tony Landis, Jay Miller