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saving an aircraft in the air



 
 
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  #1  
Old April 10th 04, 11:52 AM
Cub Driver
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Default saving an aircraft in the air


Further to the question of whether there are "decleration devices"
that would enable a crippled aircraft to land safely, this evidently
is breaking news:

Parachute saves light plane's passengers

VANCOUVER/ CKNW (AM980) -- Four people are alive today thanks to a
relatively new parachute system for light planes.

Captain Johann Duce of Victoria Search and Rescue says their plane
went
down Thursday evening, just west of Lower Arrow Lake in the West
Kootenay, during a flight from Kelowna to Lethbridge, Alberta.

Duce says rescuers feared the worst, but the aircraft had a "BRS
recovery system" - which is a parachute that can be manually activated
by the pilot that shoots out the top of the aircraft, lowering the
aircraft to the ground. He notes it's not a gentle descent - it's
about
30-kilometres an hour as it comes down. But Duce says that speed is
still survivable.

He says the four people aboard the plane were uninjured.

A Cormorant rescue helicopter from CFB Comox picked up the four and
took
them back to Kelowna.

(from www.cknw.com)
all the best -- Dan Ford
email: (put Cubdriver in subject line)

The Warbird's Forum
www.warbirdforum.com
The Piper Cub Forum www.pipercubforum.com
Viva Bush! blog www.vivabush.org
  #2  
Old April 10th 04, 02:30 PM
SteveM8597
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Posts: n/a
Default

Thanks for the input, Dan. Our disucssion has been whether and how something
like the BRS could be made to work for a large airliner,

Problems would include velocity, attitude,
structual integrity, touchdown (to whit, bad experieces in F-111/B-1A capsule
touchdowns) and pilot vs automatically actuated.

Parachute saves light plane's passengers

VANCOUVER/ CKNW (AM980) -- Four people are alive today thanks to a
relatively new parachute system for light planes.

Captain Johann Duce of Victoria Search and Rescue says their plane
went
down Thursday evening, just west of Lower Arrow Lake in the West
Kootenay, during a flight from Kelowna to Lethbridge, Alberta.

Duce says rescuers feared the worst, but the aircraft had a "BRS
recovery system" - which is a parachute that can be manually activated
by the pilot that shoots out the top of the aircraft, lowering the
aircraft to the ground. He notes it's not a gentle descent - it's
about
30-kilometres an hour as it comes down. But Duce says that speed is
still survivable.

He says the four people aboard the plane were uninjured.

A Cormorant rescue helicopter from CFB Comox picked up the four and
took
them back to Kelowna.

(from www.cknw.com)
all the best -- Dan Ford
email: (put

  #4  
Old April 10th 04, 08:26 PM
Kurt R. Todoroff
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Default

Problems would include velocity, attitude,
structual integrity, touchdown (to whit, bad experieces in F-111/B-1A capsule
touchdowns) and pilot vs automatically actuated.


The USAF has documented one case of the F-111 escape capsule impact attenuation
bag failing to deploy after ejection. The crew ejected successfully on October
8, 1982, however as noted, the impact attenuation bags did not deploy and the
the pilot (and Wing Commander) suffered an injured spinal cord. The weapons
system officer was not injured.

During my tenure in the F-111, I personally knew several colleagues who had
ejected. Each and all of them walked away from the capsule after it landed.
The F-111 escape capsule system has the second best "in the envelope" success
rate after the ACES II system.

Either the pilot or the weapons system officer could initiate ejection. No
automatic actuation system existed.





Kurt Todoroff


Markets, not mandates and mob rule.
Consent, not compulsion.

Remove "DELETEME" from my address to reply
  #5  
Old April 10th 04, 09:10 PM
SteveM8597
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Posts: n/a
Default

Any F-11 maintainers here? It has been my understanding that the egress sysrem
on the plane and its 600+ pryotechnics charges were major maintenance
headaches.

I seem to recall a couple of fatal capsule ejections in SEA but I don't recall
the causes.




Problems would include velocity, attitude,
structual integrity, touchdown (to whit, bad experieces in F-111/B-1A

capsule
touchdowns) and pilot vs automatically actuated.


The USAF has documented one case of the F-111 escape capsule impact
attenuation
bag failing to deploy after ejection. The crew ejected successfully on
October
8, 1982, however as noted, the impact attenuation bags did not deploy and the
the pilot (and Wing Commander) suffered an injured spinal cord. The weapons
system officer was not injured.

During my tenure in the F-111, I personally knew several colleagues who had
ejected. Each and all of them walked away from the capsule after it landed.
The F-111 escape capsule system has the second best "in the envelope" success
rate after the ACES II system.

Either the pilot or the weapons system officer could initiate ejection. No
automatic actuation system existed.



  #7  
Old April 11th 04, 03:47 AM
Kurt R. Todoroff
external usenet poster
 
Posts: n/a
Default

Any F-11 maintainers here? It has been my understanding that the egress
sysrem
on the plane and its 600+ pryotechnics charges were major maintenance
headaches.

Far from a major maintenance headache, the components that you refer to were
static items that didn't wear out any more than the capsule's, or any other
ejection system's, rocket motor. I'm not sure what information led you to this
understanding. Can you cite some sources?





Kurt Todoroff


Markets, not mandates and mob rule.
Consent, not compulsion.
  #8  
Old April 11th 04, 02:35 PM
SteveM8597
external usenet poster
 
Posts: n/a
Default

Any F-111 maintainers here? It has been my understanding that the egress
sysrem
on the plane and its 600+ pryotechnics charges were major maintenance
headaches.

Far from a major maintenance headache, the components that you refer to were
static items that didn't wear out any more than the capsule's, or any other
ejection system's, rocket motor. I'm not sure what information led you to
this
understanding. Can you cite some sources?


Sure. I was an F-4 maintenance officer at RAF Lakenheath UK in the 70s until
the F-111Fs repalced the F-4Ds. We (the Lakenheath maintenenace staff) had
numerous dialogs with the F-111E (IIRC) guys at Upper Heyford not far away.
They showed us the major system maintenance manhour drives and the capsule
pyros were right near the top. All the pyros were time change items and many
required pulling a lot of hardware to access and change. Not a problem on a
low hour plane but as the plane accumulated hours the time change requirements
increased.
  #9  
Old April 12th 04, 10:15 AM
The Enlightenment
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Posts: n/a
Default


"SteveM8597" wrote in message
...
Any F-111 maintainers here? It has been my understanding that

the egress
sysrem
on the plane and its 600+ pryotechnics charges were major

maintenance
headaches.

Far from a major maintenance headache, the components that you

refer to were
static items that didn't wear out any more than the capsule's, or

any other
ejection system's, rocket motor. I'm not sure what information led

you to
this
understanding. Can you cite some sources?


Sure. I was an F-4 maintenance officer at RAF Lakenheath UK in the

70s until
the F-111Fs repalced the F-4Ds. We (the Lakenheath maintenenace

staff) had
numerous dialogs with the F-111E (IIRC) guys at Upper Heyford not

far away.
They showed us the major system maintenance manhour drives and the

capsule
pyros were right near the top. All the pyros were time change

items and many
required pulling a lot of hardware to access and change. Not a

problem on a
low hour plane but as the plane accumulated hours the time change

requirements
increased.


Presumably in modern aircraft with digital data buses most of the
wiring harnesses would be replaced by the bus thus substantially
reducing the number of charges.


  #10  
Old April 12th 04, 10:34 AM
Cub Driver
external usenet poster
 
Posts: n/a
Default


Here's more on the plane that "bailed out" the other day, from
Aero-News email newsletter this morning:

************************************************** ******************

"Minutes after departure, I started experiencing instrument
failures, one after another. No warning. No smoke. No clues. Just
gauges going out one after another."

As the first gauge failed, Jeff told Center he wanted to turn
back. Center immediately gave him vectors for the return, but
thereafter the perceived succession of failures made the
turn-around seem fairly iffy.

Ippoliti was stunned. Not only were gauges failing, but they
were failing in systems that didn't appear to be related. In a
matter of seconds, just hundreds of feet from the ground and untold
obstacles obscured by IMC, he really didn't know what to trust.
This couldn't be good.

With an unknown number of hazards looming, he informed ATC
that he was clearly in trouble. And after some initial hope of
heading back, the SR22 pilot realized that turning back to the
airport was something he wasn't sure he could do with his gauges
continuing to fail in "rapid succession."

"I told center I couldn't turn back... that I was going to pull
the chute." Jeff then told ANN that one of the few responses he
remembered from that moment on was center responding, "you're going
to pull what?"

From there, Ippoliti's activities were quick and assured. "I'd
thought about this... but I never expected to have to do it." Jeff
pulled the power back, killed the engine and reached up for the BRS
CAPS handle... and pulled.

Despite all his trepidation, Jeff noted that the pull went well,
"No problem with that, it pulled easily."

BANG!

The chute OPENED. Ippoliti then described feeling a
little 'G' as the plane slowed, swung around a bit, and then things
calmed down remarkably fast.

"From there it was almost a non-event. The ELT went off right
away and prevented me from understanding Center because it was so
loud, and the pilot door came off as the chute fired... but the
ride down lasted only seconds as I came down on some trees and
just... stopped."

Ippoliti was alive and had landed in a local park. The aircraft
was not only intact, but surprisingly suffered limited damage... "a
lot less than what might have been," he noted. He doesn't have much
to say about the landing impact, as the trees apparently absorbed
most of the energy, and turned history's third emergency CAPS
landing into a "relative non-event."


all the best -- Dan Ford
email: (put Cubdriver in subject line)

The Warbird's Forum
www.warbirdforum.com
The Piper Cub Forum www.pipercubforum.com
Viva Bush! blog www.vivabush.org
 




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