Crashed Chinook had 1970s airframe
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Crashed Chinook had 1970s airframe
The mainstream media get the wrong end of the stick again.
Surely the age of the airframe is irrelevant - as long as it's been maintained, upgraded correctly.
There are 50 year old B52's flying after all.
Date
September 11, 2012
A CHINOOK helicopter that suffered a flight computer failure and crashed killing an Australian soldier was one of four ''remanufactured'' aircraft operated by Australia that used airframes of the C-class model, a type flown in the 1970s, the Herald has learnt.
Lieutenant Marcus Case died and five soldiers were injured after the Chinook Ch-47 D-class they were flying started violently tilting and rising to the point where the nose pointed down at 110 degrees, causing a crash on May 30 in Zabul province in Afghanistan.
An open military inquiry into the crash has heard evidence from a Defence Science and Technology Organisation aeronautical engineer, Rhys Lehmann, who found that the D-class's analog automatic flight control system (AFCS) could become overloaded at high altitude in turbulence and cause the violent tilting motion.
During his evidence, it was also revealed four of the Chinooks operated by the Defence Force, including the crash helicopter, had been upgraded using the C-class airframes.
Flight Lieutenant Richard Gration, who is representing one of the pilots from the crashed helicopter, suggested to Mr Lehmann that the aircraft involved in the fatal crash ''was in a previous life, a C-model Chinook'' which had been modified in the United States to become a D model with a new tail number.
Mr Lehmann replied: ''I wouldn't be able to tell you specifically, but I believe that may be the case.''
He said it was his understanding that the RAAF operated the earlier model CH-47C helicopter from 1973 to 1989.
A Defence spokesman confirmed yesterday that Australia was operating four ex-C model aircraft which had been ''re-manufactured'' by Boeing to the D-model standard. ''Whilst elements of the primary aircraft structure were reutilised in this process, the majority of the dynamic and avionics components were new or recapitalised [renewed to 'as new' condition],'' the spokesman said.
He said the other two Chinooks operated by Australia were new D models.
The overall accumulated age of the ADF fleet was extremely young compared with the remainder of the global fleet of D model aircraft, he said.
''The Australian Defence Force has no safety concerns with regard to the age of the ADF Chinook fleet,'' he said. ''The ADF maintains safety programs and engineering programs specifically targeted to identifying issues with ageing aircraft well in advance of any problems being realised.''
Surely the age of the airframe is irrelevant - as long as it's been maintained, upgraded correctly.
There are 50 year old B52's flying after all.
Date
September 11, 2012
A CHINOOK helicopter that suffered a flight computer failure and crashed killing an Australian soldier was one of four ''remanufactured'' aircraft operated by Australia that used airframes of the C-class model, a type flown in the 1970s, the Herald has learnt.
Lieutenant Marcus Case died and five soldiers were injured after the Chinook Ch-47 D-class they were flying started violently tilting and rising to the point where the nose pointed down at 110 degrees, causing a crash on May 30 in Zabul province in Afghanistan.
An open military inquiry into the crash has heard evidence from a Defence Science and Technology Organisation aeronautical engineer, Rhys Lehmann, who found that the D-class's analog automatic flight control system (AFCS) could become overloaded at high altitude in turbulence and cause the violent tilting motion.
During his evidence, it was also revealed four of the Chinooks operated by the Defence Force, including the crash helicopter, had been upgraded using the C-class airframes.
Flight Lieutenant Richard Gration, who is representing one of the pilots from the crashed helicopter, suggested to Mr Lehmann that the aircraft involved in the fatal crash ''was in a previous life, a C-model Chinook'' which had been modified in the United States to become a D model with a new tail number.
Mr Lehmann replied: ''I wouldn't be able to tell you specifically, but I believe that may be the case.''
He said it was his understanding that the RAAF operated the earlier model CH-47C helicopter from 1973 to 1989.
A Defence spokesman confirmed yesterday that Australia was operating four ex-C model aircraft which had been ''re-manufactured'' by Boeing to the D-model standard. ''Whilst elements of the primary aircraft structure were reutilised in this process, the majority of the dynamic and avionics components were new or recapitalised [renewed to 'as new' condition],'' the spokesman said.
He said the other two Chinooks operated by Australia were new D models.
The overall accumulated age of the ADF fleet was extremely young compared with the remainder of the global fleet of D model aircraft, he said.
''The Australian Defence Force has no safety concerns with regard to the age of the ADF Chinook fleet,'' he said. ''The ADF maintains safety programs and engineering programs specifically targeted to identifying issues with ageing aircraft well in advance of any problems being realised.''
If there is some concern it had been a 1970's C Model ..... there are 1960's A Models that have been modified by the US Army.....and are still flying today.
Nemo Me Impune Lacessit
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In the case of the Australian soldier killed in a Chinook crash if I heard correctly the investigation is now focusing on whether or not he was strapped in and if not was there a proper seat and seat belt available to him.
Thread Starter
Bonkers,
I don't think so - from memory the UK problem was with FADEC software - if I read the story right this seems to be some sort of analog issue.
I don't think so - from memory the UK problem was with FADEC software - if I read the story right this seems to be some sort of analog issue.
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parabellum
I thought it had already been determined that he was ramp riding
and was thrown out when the Chinook starting bucking around and
he was outside of the Chinook when it hit the ground and rolled over.
So that would say no, he was not seated and strapped in.
I think the Herald Sun is trying to make a mountain out of a molehill
re the airframe side of things.
.
I thought it had already been determined that he was ramp riding
and was thrown out when the Chinook starting bucking around and
he was outside of the Chinook when it hit the ground and rolled over.
So that would say no, he was not seated and strapped in.
I think the Herald Sun is trying to make a mountain out of a molehill
re the airframe side of things.
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I noticed it was a piece of electronics that let them down, not a piece of solidly built 1970's airframe ! I'll take a low tech 1970's, brick **** house over a high tech computer/carbon fibre composite any day.
