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The X-56A is based on Lockheed's earlier UAV work, showing influence from the Polecat, Sentinel and DarkStar UAVs. The program calls for the construction of two 7.5 feet (2.3 m)-long fuselages and a wingspan of 27.5 ft, [ 3 ] with four sets of wings being constructed for flight testing.
Lockheed Martin X-56, modular unmanned aerial vehicle designed to explore High-Altitude Long Endurance flight technologies Topics referred to by the same term This disambiguation page lists articles associated with the same title formed as a letter–number combination.
Major Pete Knight flew the X-15A-2 to a Mach 6.70, making it the fastest piloted flight of the X-plane program. X-16: Bell USAF 1954 High-altitude reconnaissance [26] "X-16" designation used to hide true purpose. [27] Canceled and never flew. X-17: Lockheed USAF, USN 1956 High Mach number reentry. [28] X-18: Hiller: USAF, USN 1959
YouTube Rewind 2018 is the single most disliked video on YouTube, receiving over 19 million dislikes since its upload on December 6, 2018. [1] This list of most-disliked YouTube videos contains the top 42 videos with the most dislikes of all time, as derived from the American video platform, YouTube's, charts. [2]
Lockheed Martin released a video showing an assembled X-59 rolling out of a hangar on August 4, 2023. [21] The corporation unveiled the X-59 on January 12, 2024. [22] [23] In November 2024, the X-59's engine was tested for the first time, with plans for the aircraft's first flight to take place in 2025. [24]
In April 2023, YouTube began offering some videos in an enhanced bitrate "1080p Premium" option for YouTube Premium subscribers on iOS. [56] In August 2023, the feature became available to subscribers on desktop platforms.
Since Lady Gaga's "Bad Romance" in 2009, every video that has reached the top of the "most-viewed YouTube videos" list has been a music video. In November 2005, a Nike advertisement featuring Brazilian football player Ronaldinho became the first video to reach 1,000,000 views. [ 1 ]
YouTube offers different features based on user verification, such as standard or basic features like uploading videos, creating playlists, and using YouTube Music, with limits based on daily activity (verification via phone number or channel history increases feature availability and daily usage limits); intermediate or additional features ...