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2. AOL Mail

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   Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

3. List of X-planes - Wikipedia

   en.wikipedia.org/wiki/List_of_X-planes

   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

4. McDonnell Douglas X-36 - Wikipedia

   en.wikipedia.org/wiki/McDonnell_Douglas_X-36

   The X-36 was unstable in both pitch and yaw axes, so an advanced digital fly-by-wire control system was used to provide stability. First flown on 17 May 1997, it made 31 successful research flights. It handled very well, and the program is reported to have met or exceeded all project goals.

5. Lockheed Martin X-44 MANTA - Wikipedia

   en.wikipedia.org/wiki/Lockheed_Martin_X-44_MANTA

   The X-44 was designed by Lockheed Martin to demonstrate the feasibility of an aircraft controlled by vectored thrust alone. The X-44 design had a reduced radar signature (due to lack of tail and vertical stabilizers) and was made more efficient by eliminating the tail and rudder surfaces, and instead using thrust vectors to provide yaw, pitch ...

6. North American X-15 - Wikipedia

   en.wikipedia.org/wiki/North_American_X-15

   X-15 attached to its B-52 mother ship with a T-38 flying nearby. The X-15 had a thick wedge tail to enable it to fly in a steady manner at hypersonic speeds. [16] This produced a significant amount of base drag at lower speeds; [16] the blunt end at the rear of the X-15 could produce as much drag as an entire F-104 Starfighter. [16]

7. Martin Marietta X-24 - Wikipedia

   en.wikipedia.org/wiki/Martin_Marietta_X-24

   The X-24 (Model SV-5P) was built by Martin Marietta and flown from Edwards AFB, California. The X-24A was the fourth lifting body design to fly; it followed the NASA M2-F1 in 1964, the Northrop HL-10 in (1966), the Northrop M2-F2 in 1966 and preceded the Northrop M2-F3 (1970). The X-24A was a fat, short teardrop shape with vertical fins for ...