critical mach number sentence in Hindi
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- At speeds above the critical Mach number, the airflow begins to become transonic, with local airflow in some places causing small sonic shock waves to form.
- This results in a much weaker standing shock wave towards the rear of the upper wing surface and a corresponding " increase " in critical mach number.
- Early transonic military aircraft, such as the Hawker Hunter and F-86 Sabre, were designed to fly satisfactorily even at speeds greater than their critical Mach number.
- Wave drag is independent of viscous effects, and tends to present itself as a sudden and dramatic increase in drag as the vehicle increases speed to the Critical Mach number.
- The problem is most severe at the wing root, so increasing the sweep here can further delay the onset and achieve a constant critical Mach number across the whole span.
- As an aircraft enters the transonic region close to the speed of sound, airflow over specific parts can exceed the local critical Mach number and create supersonic shock waves, greatly increasing drag.
- When the aircraft speed reaches its critical Mach number the accelerated airflow locally reaches the speed of sound and creates a small shock wave, even though the aircraft is still travelling below the speed of sound.
- To prevent Mach stall from progressing, the pilot should keep the airspeed below the type's critical Mach number by reducing throttle, extending speed brakes, and if possible, extending the landing gear.
- The Me 163 B-1a did not have any wingtip " washout " built into it, and as a result, it had a much higher critical Mach number than the Me 163 B-1.
- Also the new wing was apparently aerodynamically inferior to the original Spitfire elliptic one, with lower critical Mach number, leading to someone quipping that " they rather should have left the Spitfire wing on the thing ".
- The speed was equivalent to a Mach number of 0.62 while the loading condition caused Petter to select a thick wing section which would later be demonstrated to have a critical Mach number of 0.6.
- In general, a thicker wing will have a lower critical Mach number, because a thicker wing deflects the airflow passing around it more than a thinner wing does, and thus accelerates the airflow to a faster speed.
- For instance, the fairly-thick wing on the P-38 Lightning has a critical Mach number of about . 69 . The aircraft could occasionally reach this speed in dives, leading to a number of crashes.
- When the airplane exceeds its critical Mach number ( such as during stall prevention or recovery ), then drag increases or Mach tuck occurs, which can cause the aircraft to upset, lose control, and lose altitude.
- The aircraft was still subsonic, but the critical Mach number was increased from 0.79 to 0.86 at sea level and to 0.895 at 35, 000 ft ( 10, 000 m ), improving performance markedly over the Panther.
- In aerodynamics, the "'critical Mach number ( Mcr or M * ) "'of an aircraft is the lowest Mach number at which the airflow over some point of the aircraft reaches the speed of sound, but does not exceed it.
- Somewhat surprisingly, the new trapezoid wing had lower critical Mach number than the old elliptic one, bringing one of the test pilots who flew the " jet Spiteful " ( the Supermarine Attacker ) to remark that the original wing should have been retained on the jet.
- Improvements were made to the wing shape, incorporating a dog-tooth leading edge, for the effect of raising the critical Mach number of the aircraft . From 1963 onwards, all frontline J 29Fs were equipped with AIM-9 Sidewinder infrared-seeking air-to-air missiles.
- In late 1951, the lab hosted a talk by Adolf Busemann, a famous German aerodynamicist who had moved to Langley after World War II . He talked about the behavior of airflow around an airplane as its speed approached the critical Mach number, when air no longer behaved as a compressible fluid.
- The critical Mach number of the Spitfire's original elliptical wing was higher than the subsequently used laminar-flow-section, straight-tapering-planform wing of the follow-on Supermarine Spiteful, Attacker, illustrating that Reginald Mitchell's practical engineering approach to the problems of high-speed flight had paid off.
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