SR-71 Plane's Top Speed

SR-71 Plane's Top Speed

The SR71, is a supersonic aircraft designed by the innovative American aeronautical engineer Clarence Johnson, and manufactured by the American aerospace company Lockheed, this aircraft was named Blackbird, the idea of its creation was an aircraft for reconnaissance of the enemy field, with strategic features and long range.

It was endowed with the capacity to reach 3 times the speed of sound, that is why we talk about the SR 71 Top Speed Mach 3, which made it the fastest aircraft in the world.

The development of the SR71 was made from the F12 and the A12 by a group of the manufacturer called Skunk Works, his career began in 1964 and ended in 1998.

Image result for sr 71 blackbird

The technologies used in the design of the plane were oriented to stealth, to give it invisibility to enemy radars, this feature could not be achieved at the highest level, as it could be detected by radars such as those used to control air traffic.

To counteract this weakness, the plane had the ability to prevent ground-to-air missiles from hitting the aircraft, and in fact no SR71 was shot down in combat.


Origin of Aircraft SR71

At first, it was planned that the name of the A12 would be changed to B71, and it would be followed by the B70, a supersonic type bomber aircraft, this B71 could carry up to half a dozen nuclear bombs, what followed was the naming of the aircraft as the RS-71 leaving open the option to develop in the future its capacity for attack.

Image result for sr 71 blackbird

The US air force insisted that the name of the plane should be SR, so it insisted on changing the name before presenting the aircraft to the president. In the notifications given to the press, the name of the aircraft was stipulated as RS71, thus spreading the word that the president was confused when he read the name in the speech when he referred to SR71


Technical Characteristics of the SR71

  • 2 crew members
  • Length of 32.72 m
  • Wingspan of 16.94 m
  • Height of 5.64 m
  • Wing area of 170 m²
  • 30,600 kg empty weight
  • Weight loaded 77,000 kg
  • Maximum take-off weight capacity 78,000 kg
  • Propulsion of 2 Pratt&Whitney turbo-jets
  • Maximum speed of 3,530 km/h Mach 3.35
  • Range of 5,400 km
  • Flight ceiling of 25,900 m

Image result for sr 71 blackbird


SR71 facts

  • It was presented on February 29, 1964
  • On December 22, 1964, he flew for the first time as SR71
  • In January 1966, the first of these planes was put into service in California
  • In its life history the SR 71 completed 53,490 hours in flight, with 17,300 take-offs and 3,551 mission participation
  • On March 27, 1990, he was taken to the Museum of Us Air Force
  • Covered in Mach 3 speed, 11,675 hours in flight
  • Done 2,572 hours in flight at Mach 3 speed
  • 12 SR 71 were destroyed in landing and in flight accidents
  • They were permanently retired from service in January 1990

The U.S. forces considered that the viability of this aircraft to continue carrying out missions was very low, and despite the fact that the SR 71 Top Speed was three times the speed of sound, it was decided to terminate it in 1998.

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