Recommended Posts
377 22
QuoteWhat would happen if a jumper in Cossey's NB8
was caught in a svere down draft (or side draft)
below 3500 feet? Could this result in a sudden
loss of support for the chute (luft?) or a quick
trip to the ground?
Maybe a related question is, how do chutes of
this type handle wind sheer below 3500 feet?
Never flown in wind shear so I can't comment on that.
NB 6 and 8 just refer to the harness and container. The canopy I believe was a 28 ft dia. C9 round unmodified. Those kinds of canopies are drag devices not lifting airfoils and as such are far more tolerant of turbulence, gusts etc. than ram air rectangular canopies.
I have over 100 C9 jumps. I have experienced partial collapses in turbulence with dual surface ram air canopies but never in a C9. A C9, once open, will almost always get you to the ground OK. If it's windy you will have a horizontal speed roughly equal to the wind speed.
An unmodified C9 goes where the wind takes it.
377
Quote
I'm confused. At 83 my mind is a bit addled, but in 1995 I was in Nagano on my way to Hong Kong. I made this jump in China August 1997. According to Zhang Angang, head areo sports coach at Beijing Aero Sports School at Baishan, Changping province I was the oldest man to make a parachute jump in China. The article headed The Pensioner Plunges was published in the Beijing Weekly, August 22-24, 1997. So that means that we met in Hong Kong or possibly Nagano, Japan. I truly can't remember meeting you. I'm sorry.
Sheridan (Pete) Peterson
Pete, We all hope you will at least post information about your jump history - and keep it simple for us. All of your various experiences jumping in the the states, not the war storie, but about your life in general here in the states.
Of course we are all curious about why the FBI considered you in the Cooper Caper. You are the last of the old timer jumpers and we would love to hear your stories. I think most here would even agree not to ask specific questions and if we do just ignore us.
georger 244
Quote
Quote
I'm confused. At 83 my mind is a bit addled, but in 1995 I was in Nagano on my way to Hong Kong. I made this jump in China August 1997. According to Zhang Angang, head areo sports coach at Beijing Aero Sports School at Baishan, Changping province I was the oldest man to make a parachute jump in China. The article headed The Pensioner Plunges was published in the Beijing Weekly, August 22-24, 1997. So that means that we met in Hong Kong or possibly Nagano, Japan. I truly can't remember meeting you. I'm sorry.
Sheridan (Pete) Peterson
Pete, We all hope you will at least post information about your jump history - and keep it simple for us. All of your various experiences jumping in the the states, not the war storie, but about your life in general here in the states.
Of course we are all curious about why the FBI considered you in the Cooper Caper. You are the last of the old timer jumpers and we would love to hear your stories. I think most here would even agree not to ask specific questions and if we do just ignore us.
I have already posed questions. Beyond that I wont
interfere or say anything unless he replies to me -
Orange1 0
Quote
Pete, We all hope you will at least post information about your jump history - and keep it simple for us. All of your various experiences jumping in the the states, not the war storie, but about your life in general here in the states.
Speak for yourself in limiting what Pete talks about - I want to hear everything!
Oh and off that subject something occurred to me the other nigh (though not worth a post on its own so tacked on here)... after Duane died you married someone else, right? And only much later started looking in earnest into the Cooper story as I recall?
nigel99 476
Quote
A C9, once open, will almost always get you to the ground
How will it not get you to the ground??
![:P :P](/uploads/emoticons/tongue.png)
377 22
Were the Air America Thailand 727 S/L jumps known outside of Air America/CIA circles before Norjack?
If so who knew and how did they learn of the 727 jumps?
Was there info at Boeing about 727 airdrop capability? Was Pete aware of this info? Was it known outside of the company and the govt. and if so by who?
I continue to believe that Cooper KNEW a 727 was jumpable. That narrows the field of suspects considerably.
Even if Pete wasn't Cooper he may have valuable info about this topic which could help in the investigation.
I miss Snow. Wonder what he did after his last posts to get permanently banned? Could it have been some PM to Quade? His last few posts didnt seem to warrant permanent exclusion.
377
Orange1 0
QuoteQuote
A C9, once open, will almost always get you to the ground
How will it not get you to the ground??![]()
![:D :D](/uploads/emoticons/biggrin.png)
just jumping out a plane will get you to the ground - you don't need any sort of parachute
![:ph34r: :ph34r:](/uploads/emoticons/ph34r.png)
georger 244
Quote
Georger asked:QuoteWhat would happen if a jumper in Cossey's NB8
was caught in a svere down draft (or side draft)
below 3500 feet? Could this result in a sudden
loss of support for the chute (luft?) or a quick
trip to the ground?
Maybe a related question is, how do chutes of
this type handle wind sheer below 3500 feet?
Never flown in wind shear so I can't comment on that.
NB 6 and 8 just refer to the harness and container. The canopy I believe was a 28 ft dia. C9 round unmodified. Those kinds of canopies are drag devices not lifting airfoils and as such are far more tolerant of turbulence, gusts etc. than ram air rectangular canopies.
I have over 100 C9 jumps. I have experienced partial collapses in turbulence with dual surface ram air canopies but never in a C9. A C9, once open, will almost always get you to the ground OK. If it's windy you will have a horizontal speed roughly equal to the wind speed.
An unmodified C9 goes where the wind takes it.
377
I found the following: Care to comment?
""" What is the difference between the Evacuchute system and a round parachute?
Round parachutes have a radical opening and are less stable in the air, oscillating and deflating easily. Round parachutes require a higher minimum deployment altitude due to the canopy's pulse or "breathing" effect upon opening. These parachutes are traditionally used by the military for deployment of troops and dropping heavy cargo loads.
The Evacuchute parachute canopy is designed to perform reliably in extreme turbulence and weather conditions. In these conditions, the main effects to a parachute are up or down drafts. Since the Evacuchute works on the principle of air resistance, it is designed to keep maximum pressure in the canopy. So, no matter how strong, turbulent or swirling the wind is, there is no excessive air spill and the canopy always remains inflated. Extreme weather will affect the descent rate and the ability to control landing location may be limited. However, there have never been any incidents of parachute deflation or fatalities in extreme weather with the Evacuchute parachute canopy. (Model JU-40 in the Bureau of Civil Aviation records.) "
http://www.evacuchute.com/faq.html
So why have I posted this?
__ Cooper bailed into turbulence. No doubt about this. That turbulence has never been defined...
__ Ckret said he/FBI spoke with mil jump people
who catagorically said they would not send people
out to jump 'in those conditions'. Nobody including
Ckret ever spelled out what 'in those conditions' was.
Several people are trying to articulate that now using
the NWS charts for 6:00-9:00pm of that day.
__ We have operated here under the assumption a round chute was more stable. More stable than what? In what conditions are they more stable?
Cossey said the round chute was the best choice.
In turbulence? Maybe not!
__ Cooper only bailed from 10k feet or slightly lower. That means he was subject to ALL of the turbulence between 6500-3500 and 3500-ground very likely
including cross winds associated with rotating cells.
A closer inspection of the forces (given our charts)
would give us a clearer picture of exactly what any
jumper would have encountered that night ... which
goes to a probability of injury/survivability.
Nuff saide -
[Solderlind was an expert on aviation windsheer
and familiar with the winds patternsa long V23]
Amazon 7
QuoteI'd still love to hear what (if anything) Sheridan knew about 727s being jumpable before Norjack took place.
Were the Air America Thailand 727 S/L jumps known outside of Air America/CIA circles before Norjack?
If so who knew and how did they learn of the 727 jumps?
Was there info at Boeing about 727 airdrop capability? Was Pete aware of this info? Was it known outside of the company and the govt. and if so by who?
I continue to believe that Cooper KNEW a 727 was jumpable. That narrows the field of suspects considerably.
Even if Pete wasn't Cooper he may have valuable info about this topic which could help in the investigation.
I miss Snow. Wonder what he did after his last posts to get permanently banned? Could it have been some PM to Quade? His last few posts didnt seem to warrant permanent exclusion.
377
Verbally attacking a mod is a quick trip to the Recylce Bin... Clay did that and I think there have been others.
Its their playground with their rules... best to adhere to them
![:ph34r: :ph34r:](/uploads/emoticons/ph34r.png)
( Trust me on this..
![:) :)](/uploads/emoticons/smile.png)
Ok was that enough sucking up Quade???Can I have my sigline back yet
![:) :)](/uploads/emoticons/smile.png)
![:) :)](/uploads/emoticons/smile.png)
quade 4
QuoteI miss Snow. Wonder what he did after his last posts to get permanently banned? Could it have been some PM to Quade? His last few posts didnt seem to warrant permanent exclusion.
There were a couple of issues, some you could read and a couple you don't have access to, but mostly it was that he had become a nexus of incivility. I'm willing to put up with quite a bit of abuse toward me, I figure it comes with the territory. However, if a person, especially a person hiding behind an anonymous account seems to make it their life's work to abuse virtually everyone in the group, then he probably has to go. I knew Snow had passed that line when I'd log on, check my PMs and multiple people were fed up with him for various reasons.
Snow felt "entitled" by his position here. Nobody is entitled to abuse people. No matter what they think they're contributing, they simply have to go.
The World's Most Boring Skydiver
377 22
QuoteWe have operated here under the assumption a round chute was more stable. More stable than what? In what conditions are they more stable?
Cossey said the round chute was the best choice.
In turbulence? Maybe not!
The C9 is used in jet ejection seats and also in bail out rigs for aircrew who do not have ejection seats. . It is a rugged VERY strong canopy. The suspension lines run from riser to the skirt then all the way up to the apex and down the other side back to the opposite riser connection point thus reinforcing the entire canopy structure. Many sport rounds just attached the lines to the skirt band.
The C9 was designed for the survival of pilots, not for maneuverablilty or forward speed. Since bailouts and ejections often occur in bad weather I assume that stability in turbulence was a factor considered in the design and selection of the C9. I can't imagine any round chute being much better than a C9 in turbulence as far as staying inflated goes.
I've never jumped in stormy turbulent weather so I really dont have direct experience with canopy performance in such an environment.
In a downdraft the round canopy is moving in the airmass and will go down with it the same way it goes with horizontal wind. Just think of a downdraft as vertical wind. If a C9 were in a microburst with 50 mph vertical downdrafts it would go with the airmass and hit the ground with roughly the speed as the microburst winds. People get confused about relative winds. They assume that a parachute would descend far slower than the downdraft it is in, a conclusion which I say is incorrect.
My semi educated guess is that Cooper's C9 stayed inflated if it was deployed and was inflated when he hit his first terrestrial object. Even if a round collapsed it would inflate again after falling some distance.
Riggers and aero engineers know a lot more about canopies than I do. I just know that my C9 was not a soft landing canopy (high descent speed) but it was tough as hell and I never worried about collapse or structural failure. Lightly loaded ram air canopies can get very touchy in turbulence. I have flown paragliders (whichg are lightly loaded ram airs) and they are twitchy in turbulence near cliffs. I have seen videos of them collapsing. Never saw rounds do anything remotely close.
What does AMAZON say bout this topic? She has pounded ground in rounds with the rest of us and I am sure she has her own C9 stories.
377
Amazon 7
QuoteGeorger wrote:
QuoteWe have operated here under the assumption a round chute was more stable. More stable than what? In what conditions are they more stable?
Cossey said the round chute was the best choice.
In turbulence? Maybe not!
The C9 is used in jet ejection seats and also in bail out rigs for aircrew who do not have ejection seats. . It is a rugged VERY strong canopy. The suspension lines run from riser to the skirt then all the way up to the apex and down the other side back to the opposite riser connection point thus reinforcing the entire canopy structure. Many sport rounds just attached the lines to the skirt band.
The C9 was designed for the survival of pilots, not for maneuverablilty or forward speed. Since bailouts and ejections often occur in bad weather I assume that stability in turbulence was a factor considered in the design and selection of the C9. I can't imagine any round chute being much better than a C9 in turbulence as far as staying inflated goes.
I've never jumped in stormy turbulent weather so I really dont have direct experience with canopy performance in such an environment.
In a downdraft the round canopy is moving in the airmass and will go down with it the same way it goes with horizontal wind. Just think of a downdraft as vertical wind. If a C9 were in a microburst with 50 mph vertical downdrafts it would go with the airmass and hit the ground with roughly the speed as the microburst winds. People get confused about relative winds. They assume that a parachute would descend far slower than the downdraft it is in, a conclusion which I say is incorrect.
My semi educated guess is that Cooper's C9 stayed inflated if it was deployed and was inflated when he hit his first terrestrial object. Even if a round collapsed it would inflate again after falling some distance.
Riggers and aero engineers know a lot more about canopies than I do. I just know that my C9 was not a soft landing canopy (high descent speed) but it was tough as hell and I never worried about collapse or structural failure. Lightly loaded ram air canopies can get very touchy in turbulence. I have flown paragliders (whichg are lightly loaded ram airs) and they are twitchy in turbulence near cliffs. I have seen videos of them collapsing. Never saw rounds do anything remotely close.
What does AMAZON say bout this topic? She has pounded ground in rounds with the rest of us and I am sure she has her own C9 stories.
377
I have over 100 jumps of standard military C-9 canopies. On our daily demos, we used a 3 person stick to show canopy control to the pilots. We were trying to reinforce out training of how to control the canopy. First person would leave the canopy unmodified and TRY to make it oscillate as much as possible. Number 2 would try to slip the canopy as much as they could to control any oscillations. Number 3 would do the 4 line release which also stabilized the canopy nicely and gave it steerability and a little bit of forward drive. Most of our jumps were in good weather over water... and other than the line over Mae West I had once.. all were pretty boring jumps. About the only fun was to aim for the 20 man life raft we were using for the target...I landed in it twice
![;) ;)](/uploads/emoticons/wink.png)
I have watched quite a few ejection seat test films with the things and they perform as designed.. as a means of slowing down a human body from impacting the ground at a lethal speed. I have taken one into the trees on purpose and made a good hookup with the top of the tree. The Personal Lowering device in the backpack also performed well as designed.
I have seen them "breathe" quite a bit in turbulent air but never collapse. AS I have said before if I was going to duplicate DB's jump I would use one above almost any other canopy with the exception of the larger T-10 variants.
Oh and I have literally cut HUNDREDS of C-9's up to improvise shelters.. and other equipment. They had a shelf life of like 7 years and after that they were sent to the SERE training to teach aircrew with. They are good canopies.. but if you are jumping them and weigh more than about 170... I think you will meet with the ground far harder than you might care for
![;) ;)](/uploads/emoticons/wink.png)
georger 244
wow! Great response(s). Let me digest this and will reply later.QuoteGeorger wrote:
QuoteWe have operated here under the assumption a round chute was more stable. More stable than what? In what conditions are they more stable?
Cossey said the round chute was the best choice.
In turbulence? Maybe not!
The C9 is used in jet ejection seats and also in bail out rigs for aircrew who do not have ejection seats. . It is a rugged VERY strong canopy. The suspension lines run from riser to the skirt then all the way up to the apex and down the other side back to the opposite riser connection point thus reinforcing the entire canopy structure. Many sport rounds just attached the lines to the skirt band.
The C9 was designed for the survival of pilots, not for maneuverablilty or forward speed. Since bailouts and ejections often occur in bad weather I assume that stability in turbulence was a factor considered in the design and selection of the C9. I can't imagine any round chute being much better than a C9 in turbulence as far as staying inflated goes.
I've never jumped in stormy turbulent weather so I really dont have direct experience with canopy performance in such an environment.
In a downdraft the round canopy is moving in the airmass and will go down with it the same way it goes with horizontal wind. Just think of a downdraft as vertical wind. If a C9 were in a microburst with 50 mph vertical downdrafts it would go with the airmass and hit the ground with roughly the speed as the microburst winds. People get confused about relative winds. They assume that a parachute would descend far slower than the downdraft it is in, a conclusion which I say is incorrect.
My semi educated guess is that Cooper's C9 stayed inflated if it was deployed and was inflated when he hit his first terrestrial object. Even if a round collapsed it would inflate again after falling some distance.
Riggers and aero engineers know a lot more about canopies than I do. I just know that my C9 was not a soft landing canopy (high descent speed) but it was tough as hell and I never worried about collapse or structural failure. Lightly loaded ram air canopies can get very touchy in turbulence. I have flown paragliders (whichg are lightly loaded ram airs) and they are twitchy in turbulence near cliffs. I have seen videos of them collapsing. Never saw rounds do anything remotely close.
What does AMAZON say bout this topic? She has pounded ground in rounds with the rest of us and I am sure she has her own C9 stories.
377
I just arrived home. Followed some young man with
Illinois plate and sticker in the back window that read: CALL 1-800-SKYDIVE. I just smiled. Had this
forum on my mind. The gods must have sent him!
I beeped him as I turned for my road - he beeped
back politely! What a great start to the week - hope it ends this way... thanks Quade.
11/74 I was back in Vietnam. The troops had left and the whores were on the rampage. I got a job with PA&E directing a translation department. My Vietnamese translators were very contemptuous of my Vietnamese as well they should have been. On the other hand I may have been in Windsor, California I was there for a couple of months in 1974, or was it Riyadh, Saudi Arabia. To come to think of it, I believe I was with PA&E 11/73. At 83 I'm losing my memory.
Quote
377 22
If you knew it before Cooper jumped, how did you get the knowledge?
Did you see anything about airdop capabilities in Boeing 727 tech documents ?
Air America did some S/L jumps out of a 727 over Thailand before Cooper made his jump. This isnt a rumor, the actual 727 jump films are on You Tube and the operation was personally confirmed to me by an aviation history professor at the University of Texas who specializes in the history of covert air ops in SE Asia.
Did guys like you (jumpers posted in SE Asia) hear about the Air America test jumps?
Don't worry about your memory, just tell us what you can. We'd be happy to get any info or leads.
You and I sure agree on the Patriot Acts, they are a legal abomination.
Hope you are doing OK. Thanks for posting here.
377
Thank you so much for taking the time to post here.
A person like you can teach all of us a lot about skydiving in the Viet Nam era (surrounding the NORJAK hijacking) as well as other issues of the time.
I frequently speak to DB Cooper investigators about a concept I call “culture goggles.” Here's what I mean by that: Sometimes the younger posters apply the current culture to Cooper’s behavioral aspects when making guesses about what he may have done during and after the hijacking. I am of the belief that one must filter these suppositions (guesses) through the culture present in 1971.
I was a young adult (23-years old) in 1971 and can remember what was happening in “my world” then, but I am VERY interested in hearing about “your world” during that period.
I will sit quietly and listen to anything you have to say about skydiving, politics, and anything else that might be an aid to solving the NORJAK mystery.
I would, however, like to ask just one specific question. Were you aware that B-727s were being (successfully) jumped in Laos and Thailand prior to November 1971?
Thanks again,
Sluggo
EDIT: Looks like 377 beat me to the punch.
Web Page
Blog
NORJAK Forum
Quote
Oh and off that subject something occurred to me the other nigh (though not worth a post on its own so tacked on here)... after Duane died you married someone else, right? And only much later started looking in earnest into the Cooper story as I recall?
Wrong! Duane died in 1995 and I turned this over to the FBI in 1996. After the FBI lied to me in a letter dated 1998 I jumped in head first, but had already been doing what I could do with phone calls and letters prior to the FBI's failure or cover-up. Bought my first computer in 2000 so I didn't have to go down to the office from 11 PM until 2 AM. I was still relying on the FBI to provide the truth - but after more lies from the FBI in early 2000 - I knew it would never be done if I didn't do it.
I did remarry in 2002 and as you know during that time until the present I have posted on forums and have continued my search - just had to eased up a little due to my new husband until 2005 when he became very ill - then I absorbed my spare time on Cooper after he was asleep. He died in 2007 and the only thing that changed was my ablility to make day time phone calls and be more agressive.
This last husband was very understanding - after he died in 2007 when I went to clean his computer up for his children - I found he had been monitoring this site - he always knew when I needed a hug. He was a better husband than I was a wife. I never hid anything from him, but I didn't know he was actually interested enough to monitor the site...
![:) :)](/uploads/emoticons/smile.png)
![:D :D](/uploads/emoticons/biggrin.png)
![;) ;)](/uploads/emoticons/wink.png)
Checking up on me - hardly!
My last husband was a man of principle and honor and loving and understanding. I will never forget his smile - it is the last thing I see when I go to bed and I talk to him everyday. The thought of him sends chills down my spine and a smile to my face - that wonderful feeling of love and magic you can never ever forget...the magic that was so right - because it was unconditional love. I have only one regret that we did not meet yrs and yrs ago - what a wonderful life we could have had.
All we had was the (2yrs of dating) and the 3 fleeting yrs of marriage before the cancer took over his life - the last 2 yrs of his life was filled with pain and suffering.
My only escape was this forum during those 2 yrs...and he never denied me this. He was well aware of my actiivities...and knew it was my escape from the reality of his inevitable death...
I didn't take off like other women would have done for R & R to shop or go out with friends or belong to women's group - those things would have required me to be away from him when he was awake and I didn't want to loose one moment of that precious time.
Now he is in a beautiful place - everything was so uniform - the trees and the lodge - and he went to be with Sammi - his friend, the Giraffe who he waved at every time we passed the Zoo.
Sammi was struck by lightning and died 3 days before my husband. My husband was my best friend and I miss him. I still support our zoo. Our beloved Shadow (a sheltie 16 yrs old) passed away 9 months after my husband - and I was on the floor with him for 2 days...but, I knew he was going to see Daddy.
QuoteMr. Peterson,
Thank you so much for taking the time to post here.
A person like you can teach all of us a lot about skydiving in the Viet Nam era (surrounding the NORJAK hijacking) as well as other issues of the time.
![:) :)](/uploads/emoticons/smile.png)
Mr. Peterson came here by invitation from Bruce - only for Snow to drive him away. What a waste of Bruce's time and we could have learned so much from him. Perhaps the moderator could contact Mr. Peterson apologizing for the action of one poster - maybe that would help. What he found when he came here was a bunch of senseless posts - and if any of you have explored the sites to which Mr. Peterson has participated in the last few yrs - you will find they are polite, political and intellectual.
MR. PETERSON
Please give us a second chance - just make an occassional post to the forum - and give us your insite into this matter. Your brief presence here was an awakening call to current and past posters as some (including me) had lost the focal point...of course mine are considered by most to be somewhat twisted or convoluted needless to say unbelievable, but just ignore me. This site needs you.
georger 244
Quote11/74 I was back in Vietnam. The troops had left and the whores were on the rampage. I got a job with PA&E directing a translation department. My Vietnamese translators were very contemptuous of my Vietnamese as well they should have been. On the other hand I may have been in Windsor, California I was there for a couple of months in 1974, or was it Riyadh, Saudi Arabia. To come to think of it, I believe I was with PA&E 11/73. At 83 I'm losing my memory.
Quote
Great and thanks! Thanks for trying to answer
my question -
Come back any time you want to. Its safe here now.
Regards -
Georger
georger 244
Galen attached is the SURFACE chart issued 6:00pm,
so would encompass your 4:00pm baloon data..
I believe. Correct me if I am wrong.
You described winds coming in from SW off Pacific,
but notice this cold front descending from the NW.
It is the collision of these two fronts that sets up the convection cells rotating, I believe, This creates a multi vectored convective system with left hand rotation which I show a breakdown of on the last chart posted ...
lookthis over --- see what you think. I think the
basic seasonal pattern Oct-Dec is ascending warm
air flowing to the NE (from SW off the Humbolt current) which by late Octiber begins to collide
with heavier mass 'descending' cold fronts from
the Arctic. Your man may have a better-simpler
explanation ....
Thanks,
G
No known relation to the Collins who the Night Clerk registered.
Georger said: I didnt even think of that. Good grief!
No relation whatever...
Holy crap!
---------------------------------
Now Jo is laughing her head off after she cried on 377's shoulder.
Georger I needed a GOOD laugh and that did it!
I wasn't referring to John Collins the AKA of Weber. I was referring to my own name. My maiden name was Collins. My family comes from a long line of politicians and inventors and attorneys and dentist. When I get a chance I will dig up a picture of my father - Art might be related to those who settled in Ky.
John W. Collins (Scotland and Virgiina) came to Culpepper Virginia in the mid 18th century from Edinburg, Scotland. He was born in the early 1700's. We understand that he had 12 son's and we only know our own branch...from that point.
Captain Robert Collins II was the Famous Bugle Tooter during the war of 1812.
Share this post
Link to post
Share on other sites