The Indian truth behind the ruins of Takshasila

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        The truth behind the ruins of Takshasila Takshasila (Taxila ) was a vital Buddhist centre from the fifth century B.C. to the Sixth Century A.D. Takshasila illustrates the different stages in the development of a city on the Indus. It included the ancient Neolithic Saraikala mound, the Sirkap fortification (2nd century B.C.) and the town of Sirsukh (1st century A.D.). Central Asian, Persian and Greek influence can be witnessed at Takshasila. (Centre, 2023). Ancient Takshasila was situated at the pivotal junction of South Asia and Central Asia. The common association of the Huns with Takshasila has been the destroyer of the Buddhist structures at Takshasila. The name “Huns” has been associated with atrocities committed against select groups and vandalism, especially by Attila  in Europe. However, no reliable evidence exists of the Alkhan carrying out such atrocities and destruction in the outgoing fourth century. New archaeological research has revealed t...
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Qatar Airways avoids potential traffic collision with a crossing aircraft over Iran

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A Qatar Airways newly acquired Airbus A-350-1000 series aircraft had a close call over Iran on 12th April when it came into close proximity with another crossing aircraft. The airliner equipped with the state of art technology and traffic collision avoidance system was seen climbing by about 500ft while cruising at 34000ft on a flight from Doha, Qatar to Los Angles, USA.

          Flightradar24 plotted aircraft track


The automated TCAS detects an incoming aircraft and if it identifies the other aircraft on a potential collision trajectory, she arms the traffic collision avoidance system. When the intruder crosses a pre-set threshold , the system automatically initiates an avoidance maneuver to provide the minimum safe separation between two aircrafts.




Altitude increase/ Speed decay due to traffic avoidance

In this incident the Qatar Airways A350 registration 97-ANO dropped its speed by almost 35km/hr while cruising at 888km/hr. This drop in speed at an high altitude is not safe since the avoidance maneuver climb is not a rough one but is expected to be as smooth a climb as is carried out during a normal day to day flight as the engines are capable of developing sufficient thrust to maintain the speed.

The possible reasons could be a a sudden climb order "Climb" due to a malfunction in the intruder aircraft's altitude hold capability. In this event, the A350 aircraft's autopilot would increase the load maneuver capability by 0.3g and pull up the nose of the aircraft. The engines are expected to increase the thrust simultaneously to prevent a large speed decay and a potential stall. 

It needs to be investigated if the aircraft performed the evasive maneuver as per the design requirements or was there insufficient engine thrust to back the automatic maneuver. Human factors could also play a part in this event.


Comments

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