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  2. Flight airspeed record - Wikipedia

    en.wikipedia.org/wiki/Flight_airspeed_record

    An air speed record is the highest airspeed attained by an aircraft of a particular class. The rules for all official aviation records are defined by Fédération Aéronautique Internationale (FAI), [ 1 ] which also ratifies any claims.

  3. Hypersonic speed - Wikipedia

    en.wikipedia.org/wiki/Hypersonic_speed

    In aerodynamics, a hypersonic speed is one that exceeds five times the speed of sound, often stated as starting at speeds of Mach 5 and above. [1] The precise Mach number at which a craft can be said to be flying at hypersonic speed varies, since individual physical changes in the airflow (like molecular dissociation and ionization) occur at different speeds; these effects collectively become ...

  4. NASA X-43 - Wikipedia

    en.wikipedia.org/wiki/NASA_X-43

    The X-43A aircraft was a small unpiloted test vehicle measuring just over 3.7 m (12 ft) in length. [4] The vehicle was a lifting body design, where the body of the aircraft provides a significant amount of lift for flight, rather than relying on wings. The aircraft weighed roughly 1,400 kg (3,000 lb). The X-43A was designed to be fully controllable in high-speed flight, even when gliding ...

  5. North American X-15 - Wikipedia

    en.wikipedia.org/wiki/North_American_X-15

    The North American X-15 is a hypersonic rocket-powered aircraft operated by the United States Air Force and the National Aeronautics and Space Administration (NASA) as part of the X-plane series of experimental aircraft. The X-15 set speed and altitude records in the 1960s, crossing the edge of outer space and returning with valuable data used in aircraft and spacecraft design. The X-15's ...

  6. Fastest propeller-driven aircraft - Wikipedia

    en.wikipedia.org/wiki/Fastest_propeller-driven...

    A number of aircraft have been claimed to be the fastest propeller-driven aircraft. This article presents the current record holders for several sub-classes of propeller-driven aircraft that hold recognized, documented speed records in level flight. Fédération Aéronautique Internationale (FAI) records are the basis for this article. [1] Other contenders and their claims are discussed, but ...

  7. Hypersonic flight - Wikipedia

    en.wikipedia.org/wiki/Hypersonic_flight

    Hypersonic flight is flight through the atmosphere below altitudes of about 90 km (56 mi) at speeds greater than Mach 5, a speed where dissociation of air begins to become significant and high heat loads exist. Speeds over Mach 25 have been achieved below the thermosphere as of 2020. [citation needed] Reentry vehicle (RV) after an 8,000 ...

  8. Boeing 747 - Wikipedia

    en.wikipedia.org/wiki/Boeing_747

    The Boeing 747 is a long-range wide-body airliner designed and manufactured by Boeing Commercial Airplanes in the United States between 1968 and 2023. After the introduction of the 707 in October 1958, Pan Am wanted a jet 2+1⁄2 times its size, to reduce its seat cost by 30%. In 1965, Joe Sutter left the 737 development program to design the 747.

  9. Indicated airspeed - Wikipedia

    en.wikipedia.org/wiki/Indicated_airspeed

    The IAS is an important value for the pilot because it is the indicated speeds which are specified in the aircraft flight manual for such important performance values as the stall speed. These speeds, in true airspeed terms, vary considerably depending upon density altitude.