Vitesse des avions de chasse : Performances et records - Surplus militaire

Fighter jet speed: Performance and records

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    Why is speed crucial for fighter jets?

    Speed ​​plays a strategic role in military aviation. It allows for rapid access to sensitive areas, evasion of threats, and precise strikes. Compared to other criteria such as maneuverability or stealth, it remains a determining factor in air missions.

    The different speed measurements

    Definitions of speed types

    • Cruising speed : Approximately Mach 0.8 to Mach 1.2, used for extended flights.
    • Maximum speed : Mach 1.5 to Mach 3.2 depending on the model.
    • Ascent rate : Measured in feet/minutes.

    How is speed calculated?

    Speed ​​is measured using a dynamic pressure anemometer , which calculates the pressure difference between the incoming air and the ambient air. The standard unit of measurement is Mach number , where Mach 1 is equivalent to 1225 km/h.

    The fastest fighter jets in the world

    Top 5 fastest planes

    1. MiG-31 Foxhound : Mach 2.83 (3330 km/h).
    2. F-15 Eagle : Mach 2.5 (3000 km/h).
    3. Su-27 Flanker : Mach 2.35 (2800 km/h).
    4. Dassault Rafale : Mach 1.8 (1912 km/h).
    5. Mirage 2000 : Mach 2.2 (2336 km/h).

    Each model is distinguished by its cutting-edge technology , high-performance engines and aerodynamic design.

    Factors influencing speed

    • Aerodynamic design : An optimized shape reduces drag.
    • Engine power : Modern engines, such as the AL-31F of the Su-27, offer exceptional performance.
    • Environmental conditions : Altitude and temperature influence achievable speeds.

    Speed ​​record: Experimental aircraft

    Some experimental aircraft have set impressive records:

    • North American X-15 : Mach 6.72 (7274 km/h).
    • Lockheed SR-71 Blackbird : Mach 3.3 (3540 km/h).

    A closer look at the Rafale: speed and performance

    The Dassault Rafale , an emblem of French aviation, reaches a maximum speed of Mach 1.8 . Its performance makes it a multirole aircraft appreciated in complex missions.

    The future of fighter jets

    Emerging technologies, such as hypersonic aircraft or the NGF, promise even higher speeds while incorporating sustainable materials.

    FAQ: Frequently Asked Questions

    What is the average speed of a fighter jet?
    The average speed is between Mach 1.5 and Mach 2, or approximately 1800 to 2400 km/h.
    Which fighter jet is the fastest in the world?
    The MiG-31 Foxhound holds the record with a speed of Mach 2.83.

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