727 Crash Video

NavLinear

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#1
Check out this video:

http://www.kvoa.com/news/raw-video-disc ... -science-/

My understanding is the Discovery Channel will televise the events leading up to the crash sometime this summer.

One of my coworkers has been working with the Discovery Channel team to make this happen during weekends and while on "vacation". He designed the interface between the command link and the servos linking them up to the aircrafts controls. There is a mechanical engagement that the pilot would initiate allowing the remote system to take over. They conducted a series of tests prior to the hot run including him (coworker) flying the aircraft from the ground to validate the remote system.

For the crash event there were a crew of three on board, two skydivers for a tandum jump (co-pilot and navigator) and a jump master. They flew at an altitude of 5k feet and conducted a cold run allowing the chase aircraft to remotely fly the 727 with the crew onboard. On the last turn coming into the final leg the two crew members and jumpers went out the back end of the aircraft (same aircraft style DB Cooper jumped from). The pilot later said he's never been in a cockpit without other crew members. He said it was a very long ten minutes before he engaged the remote mechanisim. He was a seasoned jumper so he went out after walking the length of the aircraft to meet up with the jump master. The jump master was the last to bail - he must have a pair.

On board the aircraft were three fully instrumented crash dummies and more uninstrumented dummies. Apparently they had a butt ton of cameras on board and many cameras on the ground. This should be fun to watch.

During the filming the camera members were all over the aircraft and of course they weren't as careful as the guys wiring up the systems. They accidently broke one wire for the command and control system that included the flight termination system and guess what wire that was. The ground reference of course. Fortunatly the test procedure was extensive and this was caught prior to the flight.

I'm not sure how long it will take for the Discovery Channel to put the show together but when I hear something I'll post back with the date and time.
 

NavLinear

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Larry,

Yes - you hit the nail on the head but from what I heard the story is a long and painful one - but it seems to be the norm.

You wouldn't beleive what we have to do sometimes to fly unmanned stuff here - especially in FAA controled airspace.

Dennis
 

speakerman1

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NavLinear said:
Larry,

Yes - you hit the nail on the head but from what I heard the story is a long and painful one - but it seems to be the norm.

You wouldn't beleive what we have to do sometimes to fly unmanned stuff here - especially in FAA controled airspace.

Dennis
I worked at Aberdeen Proving grounds. Seen a few drones being tested.

Larry
 

speakerman1

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A mech at Eastern designed it. He didn't get much if any money. It was just an air vane that goes into place when the air stream hits it to lock them. Named after Mister Cooper.
 

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What dad loved about flying the SR-71 was , " Didn't have to worry about other aircraft sharing the same airspace", SAM's and other rocketry did however, annoy them occasionally.
 

NavLinear

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What dad loved about flying the SR-71 was , " Didn't have to worry about other aircraft sharing the same airspace", SAM's and other rocketry did however, annoy them occasionally.
No way - your old man flew the Blackbird? One of a very few! I bet he had some stories.

Talk about an aircraft way ahead of it's time - the book Ben Rich wrote "Skunk Works" goes into a lot of detail about designing this amazing craft. Kelly Johnson and later Ben Rich were involved in some of the greatest aircraft designs ever and the hurdles they had to surpass is difficult to imagine.

Did you know that when President Johnson made the first public anouncment regarding the Blackbird he called it the SR-71 - the offical nomenclature for this aircraft was the RS-71. I can't imagine how much it cost to change all of the documentation to reflect his blunder! In that day and age the US president couldn't be wrong.
 

Skratch

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#14
What dad loved about flying the SR-71 was , " Didn't have to worry about other aircraft sharing the same airspace", SAM's and other rocketry did however, annoy them occasionally.
I see where Lee gets his Mach 8 from?
 

laatsch55

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Ah Mark---you are quick!!

Nav --Kelly johnson was simply an aeronautical genius. Designed in the late 50's and with a slide rule, And if they fired rockets at ya, and you still had throttle response and fuel, nice try. Machining titaniuum in those days was a Russian speciality. They had that raw resource in abundance. the skunkworks bunch had some major machieworking design and builds to do just to build the parts to build the other parts.
Kelly johnson is proof God loves this country, just what ya need when ya need it, and still ruled the skies 50 years after it leaked it's first JP-4 on the tarmac.
 

laatsch55

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Or JP-7, never can keep that one straight. Special formula with hi temp additives to keepm it from blowing up when the surface skin was red hot. The only aircraft (that i know of) that was retempered every time it got below 30-40 thousand.
 

laatsch55

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Nav, Dad must have had some life-prolonging dealings with some Masterchiefs in his day as one of the last things he told me before he died was " Son, if you ever have the priveledge of being in the same zipcode as a Masterchief, go out of your way to shake his hand, as they are some of the finest people walking the face of the earth". From an Air Force lifer that spoke volumes.
 

speakerman1

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Not 4 JP7. Used less oxygen to burn. In the late 70s it was still the XR. They were still adding things to it. The pilots didn't wear G suits. They wore space suits. When I was in the specs were still classified. Max. Speed UNK. Max Alt. UNK Yes it leaked like a stuck pig till the fuselage got to the right temp and the skin expanded from the heat of the friction of the air going over it. One story was they could photograph a match book in a parking lot and you could read it. Was a very wicked plane. They couldn't arm it. It was to fast. Is my favorite plane. Only mechs were Staff and above.
 

laatsch55

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#19
No sense firing a rocket when what it was fired from was going faster than it could.
 
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