AAD Statistics

[ruthers 0]

who compiled those documents?

[format 1]

Quote

who compiled those documents?

As far I think, it's an anonymous compiler (think Wikileaks).
Yet credible, the info inside is referenced and checkable.

I use AAD and would recommend one, as long as those documents were read and understood.

What goes around, comes later.

[frontloop33 1]

If I understand the two documents correctly:

Cypres: There were several no- or to low activations, which led to the death of the skydiver.
There were also some other activations (ground, cabin), but they are not reported and apparently didn't cause any trouble (at least none that I know of).

So, my conclusion of the Cypres-Article is: If you have one, it's very unlikely, that there is a misfire that can kill you. But it can happen, that it won't fire when needed.

This raises the question: Do I need a cypres at all because it might not safe me (too low activation, when I fail to pull).

Vigil: There were some in-plane activations, that caused death or serious injury.

So my personal conclusion is: I feel safer with my cypres (as i would with my Vigil), even when it might not safe me. But at least it does not kill me. One question remains: Is it wise to spend $1500 or safe the money and jump without any AAD at all.

Nevertheless, the statements "Unknown, but has occurred" at the cypres document should be investigated.

[Tazelaar 0]

 

On 5/20/2011 at 8:07 PM, format said:

now there's statistics:

http://viewer.zoho.com/docs/c6UCg

and

http://viewer.zoho.com/docs/dcWbbA

What goes around, comes later.

Too bad the data isn't available anymore...

[wmw999 2,439]

1 hour ago, Tazelaar said:

 

Too bad the data isn't available anymore...

Well, that post is 13 years old. 

Wendy P.

[pchapman 279]

Ok, let me dig through my AAD files for early 2011...because I'm pretty sure I downloaded whatever was linked to from this thread 13 years ago.

I don't know what exactly was linked to from here, but I have a couple candidate files, uploaded here, that are both anonymous:

-- One is a big attack on CYPRES.  (I haven't looked at it lately but I think some of the criticism may be valid even if overdone overall. Cypres certainly had its issues in the early days, like never admitting errors unless it had to, and including a bad sensor issue or claiming you'd never be able to fire it in a swoop -- until Adrian Nicholas died.)

-- One is a big attack on VIGIL.  (They were having all sorts of issues & bulletins back then. )

-- I have also attached a 3rd document, one by Kirk Smith at ParaConcepts.  Mostly about Argus, but also about cutter designs in general.  I think that document is pretty well thought out and not a partisan attack.

It also came out in that era of the AAD Wars as I call it. ( 2011 was particularly busy, judging by the number of AAD related files with a 2011 date on my hard drive.)

VIGIL INCIDENTS HISTORY (Anti vigil - mostly cut from other reports).pdf CYPRES_AAD_FACT_SHEET (odd independent criticism by someone).pdf Whats Going On With AADs Kirk Smith.pdf

[mikeat10500 12]

On 10/22/2010 at 3:09 PM, riggerrob said:

 

......................................................................

Occum's Razor

Rumour has it, that his last video shows Tom Piras riding in a jump-plane, joking about having this fancy new electronic gadget (Cypres 1), but not remembering how to turn it on.

Tom Piras was the best Cypres salesman!

I remember when that happened ... it was in 1993 I think. Everyone ran out and bought a Cypress the next year ... 'cause if it happened to Tom it can happen to any of us. By 1999 just me and the pilot were left without an AAD. Another Tom Piras rumor was that when they got his car from the DZ later, the Doors cassette was in the stereo, and when the car started it played "The end".

[riggerrob 643]

On 10/12/2024 at 6:35 PM, mikeat10500 said:

I remember when that happened ... it was in 1993 I think. Everyone ran out and bought a Cypress the next year ... 'cause if it happened to Tom it can happen to any of us. By 1999 just me and the pilot were left without an AAD. Another Tom Piras rumor was that when they got his car from the DZ later, the Doors cassette was in the stereo, and when the car started it played "The end".

Yes!

Attitudes towards AADs changed radically during the mid-1990s.

I started rigging in 1984 when only FXC and Sentinel were available and they needed wide margins of error. I only saw one FXC miss-fire at 7,000 feet. All the rest of the "miss-fires" happened below 2,000 feet. What was any junior jumper doing in freefall below 2,000 feet??????

I started rigging for Square One in early 1994. A year later, Cypres was the norm on new-sold gear. Soon the sales girls were raiding the receiving dock to secure Cypri for their customers.

A couple of years later, one of my rigging colleagues told a customer "Your new rig has arrived, except for the Cypres. How about if I assemble and pack it so you can jump it this weekend and I will install the Cypres when it arrives next week."

The customer replied: "Never mind. I can jump rental gear for another week."

[Phil1111 1,149]

On 11/17/2024 at 7:32 PM, riggerrob said:

Yes!

Attitudes towards AADs changed radically during the mid-1990s.

I started rigging in 1984 when only FXC and Sentinel were available and they needed wide margins of error. I only saw one FXC miss-fire at 7,000 feet. All the rest of the "miss-fires" happened below 2,000 feet. What was any junior jumper doing in freefall below 2,000 feet??????

I started rigging for Square One in early 1994. A year later, Cypres was the norm on new-sold gear. Soon the sales girls were raiding the receiving dock to secure Cypri for their customers.

A couple of years later, one of my rigging colleagues told a customer "Your new rig has arrived, except for the Cypres. How about if I assemble and pack it so you can jump it this weekend and I will install the Cypres when it arrives next week."

The customer replied: "Never mind. I can jump rental gear for another week."

All about the attitude