[quote name='ankit-s' date='03 March 2010 - 03:23 PM' timestamp='1267609509' post='104751']
[size="6"]3 killed in Hyderabad air show plane crash[/size]
![[Image: suryakiran1_jpg_37427f_20100303020416_84x64.jpg]](http://im.in.com/media/read/content/2010/Mar/suryakiran1_jpg_37427f_20100303020416_84x64.jpg)
Hyderabad: Two Navy pilots and a civilian died and two persons were injured when a Navy plane crashed at an international aviation exhibition and hit a building in a residential area near Begumpet airport in Hyderabad.
Officials tell CNN-IBN the aircraft belonged to the Indian Navy's aerobatic Sagar Pawan team and it crashed into a two-storied building while performing an aerobatic manoeuvre with three other aircraft.
The aircraft, part of the Navy's aerobatics team that uses four trainers, was unable to pull up from a dive and went into a spiral as the planes were breaking away from the formation and going at different directions.
IANS reports the aircraft, an HJT-16 Kiran Mk2 trainer built by Hindustan Aeronautics, crashed a couple of minutes before noon near the old Begumpet Airport in the heart of the city.
The air show began at 11:05 am and 15 minutes into the air show one of the aircraft was seen breaking away.
Witnesses said they heard a loud boom, after which the plane went down. A thick cloud of smoke rose to the sky near the Begumpet airport following the accident.
According to witnesses, the plane had crashed into the mobile phone towers on top of the building. They heard a loud boom, after which the plane went down.
The crash occurred on the first day of India Aviation 2010, a five-day event from March 3-7, which will feature exhibition, conference on civil aviation industry, CEOs Forum, flying display, customer demonstration flights, static display and media conferences.
[/quote]
I am very sorry to hear that. I known that Begumpet airfield and Bowenpalli area very well.
Looking at video clips of the last few seconds of the flight, as it was executing the last star-burst maneuver of the aerobatic performance, it appears that the aircraft under go one deep spin (with very high angle of attack) as if the pilot was trying to change the exit azimuth while at the same time it was in high G. Some other static photos also clearly show engine flame-out. It is not clear [color="#800080"]if[/color] the flame-out was before the deep spin or after-wards. If it is afterwards, than clearly it was caused by the wind [color="#9932cc"]buffetting [/color]during hard spin, and that happened when the engine was surely being [color="#800080"]revved up from idling to almost 75% power for level flight[/color] after recovery from dive. Given the the engine does not have FADEC, its old control system might very well have weakness in that type of aero-maneuver and the engine packed up at the wrong moment.
There want not enough altitude for safe ejection (given negative initial velocity in the first place).
My salute to the pilots who fly these magnificent machines, and heart felt condolences for the IN families of the pilots, and the civilian citizen killed in the accident.
============
Edited after posting changes in [color="#800080"]different [/color]colour.
[size="6"]3 killed in Hyderabad air show plane crash[/size]
Hyderabad: Two Navy pilots and a civilian died and two persons were injured when a Navy plane crashed at an international aviation exhibition and hit a building in a residential area near Begumpet airport in Hyderabad.
Officials tell CNN-IBN the aircraft belonged to the Indian Navy's aerobatic Sagar Pawan team and it crashed into a two-storied building while performing an aerobatic manoeuvre with three other aircraft.
The aircraft, part of the Navy's aerobatics team that uses four trainers, was unable to pull up from a dive and went into a spiral as the planes were breaking away from the formation and going at different directions.
IANS reports the aircraft, an HJT-16 Kiran Mk2 trainer built by Hindustan Aeronautics, crashed a couple of minutes before noon near the old Begumpet Airport in the heart of the city.
The air show began at 11:05 am and 15 minutes into the air show one of the aircraft was seen breaking away.
Witnesses said they heard a loud boom, after which the plane went down. A thick cloud of smoke rose to the sky near the Begumpet airport following the accident.
According to witnesses, the plane had crashed into the mobile phone towers on top of the building. They heard a loud boom, after which the plane went down.
The crash occurred on the first day of India Aviation 2010, a five-day event from March 3-7, which will feature exhibition, conference on civil aviation industry, CEOs Forum, flying display, customer demonstration flights, static display and media conferences.
[/quote]
I am very sorry to hear that. I known that Begumpet airfield and Bowenpalli area very well.
Looking at video clips of the last few seconds of the flight, as it was executing the last star-burst maneuver of the aerobatic performance, it appears that the aircraft under go one deep spin (with very high angle of attack) as if the pilot was trying to change the exit azimuth while at the same time it was in high G. Some other static photos also clearly show engine flame-out. It is not clear [color="#800080"]if[/color] the flame-out was before the deep spin or after-wards. If it is afterwards, than clearly it was caused by the wind [color="#9932cc"]buffetting [/color]during hard spin, and that happened when the engine was surely being [color="#800080"]revved up from idling to almost 75% power for level flight[/color] after recovery from dive. Given the the engine does not have FADEC, its old control system might very well have weakness in that type of aero-maneuver and the engine packed up at the wrong moment.
There want not enough altitude for safe ejection (given negative initial velocity in the first place).
My salute to the pilots who fly these magnificent machines, and heart felt condolences for the IN families of the pilots, and the civilian citizen killed in the accident.
============
Edited after posting changes in [color="#800080"]different [/color]colour.