North American XB-70 Valkyrie Publisher: Virtavia Review Author: Ray Andersen Suggested Price: $25.00 Intro The XB-70 is a delta winged, high altitude, six engine, supersonic strategic bomber and research aircraft prototype for the proposed B-70, capable of flying Mach 3+ and with a service ceiling at an altitude of 70,000+ feet. The XB-70 was designed in the 1950s by North American and later built in the 1960s even though the B-70 program was cancelled. In total only two aircraft were built and they received the nickname Valkyrie. One of the most characteristic features that the Valkyrie had, was that the outer portions of the wings were hinged and could be pivoted downward by up to 65 degrees which increased the directional stability during supersonic flight, but this feature also shifted the center of lift to a more favorable position and strengthened the compression lift effect because the wings now further trapped the shock wave created under the wings. Sorry, but the canards on the XB-70 had active control surfaces, as they're in the Eurofighter and the Rafale that you mention. There are many pictures of the canards in the XB-70 on take off moment showing that they have control surfaces. Yo can see them here Yes and No, The Canards on both 62-0001 and 62-0207 (A/V-2) both were simply geared to the Elevons for trimmed stable horizontal flight purposes only, not 'Active' as on the Eurofighter in anyway shape or form. Free Fs2004 Aircraft DownloadsThe picture you reference is simply showing canard flaps in down position. I have several hours of flight video, pilot interviews and official publications to back that up. Here is one resource you might enjoy. Flight Simulator 2004Product Information Publisher: Description: Experimental Mach 3 Bomber Prototype Download Size: 13.5Mb Format: Download with Auto Installer Simulation Type: FSX (SP1/SP2/Acceleration) Reviewed by: - AVSIM Staff Reviewer - January 8, 2009 Introduction The XB-70 was a prototype for the proposed B-70 bomber designed to penetrate Soviet air defenses and drop a nuclear payload on behalf of the Strategic Air Command. The XB-70 can trace its roots all the way back to “General Operation Requirement #38” that proposed a new bomber that embraced the best traits of the B-52 (Primarily Range) and the B-58 (Speed). The proposed aircraft would have to be capable of speeds between Mach 3.0 and Mach 3.2 with a ceiling at or above 70,000 feet and a range of over 10,000 miles. North American won the contract in late 1957 and the number B-70 (XB-70 for this experimental version) was assigned to the project, with the popular nickname Valkyrie being assigned through a competition. Soviet technological advances in the surface to air missile department caused many problems for the proposed B-70, and led to the program’s cancellation in 1961. The two partially built prototypes were both finished and made the type’s first flight in 1964. They were used for research and study of supersonic flight, specifically large supersonic aircraft, propulsion systems and aerodynamics. The XB-70s provided invaluable data that was used in the design of the B-1A and B-1B Lancer. The second XB-70 (XB-70A-2 S/N 62-0207) was tragically lost in a mid air collision with an F-104 during a photo shoot mission to advertise the GE engines that all aircraft in the formation used. The XB-70’s crew ejected, but the F-104’s pilot perished in the accident. After the accident the first XB-70 (XB-70A-1 S/N 62-0001) continued flying research missions (33 more flights) before being transferred to NASA in 1967 where it flew on until its retirement in 1969. The first XB-70 is now on display at the National Museum of the United States Air Force at Wright-Patterson Air Force Base in Dayton, Ohio. Citizen promaster d203 manual muscle car. WingsWare is a newcomer to the FS Addon market. The XB-70 is their first release with numerous other high performance aircraft in development. Their design philosophy is to provide a detailed and accurate representation for both the interior and exterior of the aircraft while preserving frame rates.
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