Forums: Skydiving: Gear and Rigging:
Relocating the Cypres dispay unit

 


dpreguy  (D 835)

Mar 3, 2012, 9:27 AM
Post #1 of 16 (1305 views)
Shortcut
Relocating the Cypres dispay unit Can't Post

On 3 or 4 rigs I have relocated the display unit for the Cypes AAD from the "under the flap" position to it's common position to the back of the neck ( old Vectors) or back of the shoulders like in a Sunpath. (You know, the little pocket with clear plastic window.) I talked to one of the mfg at PIA several years ago ,(mfg isn't important here) and was told that it wasn't anything I needed a letter from the mfg for. He even sent me a few pre cut windows to use when constructing the home made pocket. Etc. He downplayed the tech approval aspect. I agreed, maybe because I wanted to agree. I haven't done many, and haven't bothered to check with any of the other mfgs. Those rigs are getting more rare now, as they are pre AAD popularity. This is a departure from my usual 'by the book' attitude, and maybe it's because I am lazy or the relocation was something I didn't want to wait to get the letter from the mfg, because I wanted to get it done. This is more like a casual inquiry of other master riggers, and see if you have done the same. This has arisen about once a year, and may never come up again, as these old rigs are being taken out of use by skydivers buying more modern H/C's. Think I need (should have gotten) to get a mfg letter to OK? The mod is noted on the packing data card.

The relocatioon is a good thing, as the user will be more likely to turn it on and check it periodically if it is visible, and obviates the necessity of opening and closing the reserve flap, just to turn it on and to look at it. (OK I am rationalizing here)


JerryBaumchen  (D 1543)

Mar 3, 2012, 9:34 AM
Post #2 of 16 (1281 views)
Shortcut
Re: [dpreguy] Relocating the Cypres dispay unit [In reply to] Can't Post

Hi Walt,

Just my thoughts:

The back pad, where you are probably mounting the AAD, is not the container in most cases.

The actual reserve container is the certificated part, the back pad is not.

I once asked Bill Booth this very question during a TSO committee meeting ( I knew what he would say but I wanted him to say it ).

A letter from any mfr is always good but IMO you are not cutting into the container. Unless you actually are, then that is quite different.

JerryBaumchen


dpreguy  (D 835)

Mar 3, 2012, 9:49 AM
Post #3 of 16 (1268 views)
Shortcut
Re: [JerryBaumchen] Relocating the Cypres dispay unit [In reply to] Can't Post

Correct. Not cutting into the conatainer except for the little hot knife slit to get it routed out. Basically, just looking at the newer ones and copying how they did it. Not inventing anything.


Premier skybytch  (D License)

Mar 3, 2012, 2:10 PM
Post #4 of 16 (1193 views)
Shortcut
Re: [dpreguy] Relocating the Cypres dispay unit [In reply to] Can't Post

In reply to:
The relocatioon is a good thing, as the user will be more likely to turn it on and check it periodically if it is visible, and obviates the necessity of opening and closing the reserve flap, just to turn it on and to look at it. (OK I am rationalizing here)

Is it no longer important to lift the reserve flap and check the pin, RSL, etc., at least once during a jumping day?


Squeak  (E 1313)

Mar 3, 2012, 11:37 PM
Post #5 of 16 (1084 views)
Shortcut
Re: [dpreguy] Relocating the Cypres dispay unit [In reply to] Can't Post

In reply to:
The relocatioon is a good thing, as the user will be more likely to turn it on and check it periodically if it is visible, and obviates the necessity of opening and closing the reserve flap, just to turn it on and to look at it. (OK I am rationalizing here)
you think?
so you think that they are to lazy to pop-up the reserve and turn it on, therefore if you put it in the open, there's likely NO CHANCE they'll ever check their reserve pin at all?


dpreguy  (D 835)

Mar 4, 2012, 7:10 AM
Post #6 of 16 (1034 views)
Shortcut
Re: [Squeak] Relocating the Cypres dispay unit [In reply to] Can't Post

Checking the reserve pin/loop, and turning on the Cypres and oserving the diplay panel are separate acts. Not related to each other.

Everyone knows that all rig mfg since -oh I don't know, maybe the early to mid 90's - have provided a visble diplay unit window, allowing the user to turn it on and observe it without opening up the reserve flap. Probably have to contact them to see why they did that. I am glad they did, as it is very convenient.
It's also nice, and time convenient, for AFF Instructors to glance at it on the rental rigs during gear check.

Checking the reserve pin and loop is your separate issue. You can deal with that any way you like. I guess if you'd like to convince the mfg's to relocacte the display units back to the "under the flap" location so the user would hae to open it to turn on the AAD, to force the user to check the pin, then go for it. Or open a thread on 'Checking Your Reserve Pin.


Squeak  (E 1313)

Mar 4, 2012, 7:48 AM
Post #7 of 16 (1018 views)
Shortcut
Re: [dpreguy] Relocating the Cypres dispay unit [In reply to] Can't Post

In reply to:
Checking the reserve pin/loop, and turning on the Cypres and oserving the diplay panel are separate acts. Not related to each other.
they're very much related to my routine on my vector

BTW Not everyone know that ALL rig mfgrs do. because not all of them do.


(This post was edited by Squeak on Mar 4, 2012, 7:50 AM)


airtwardo  (D License)

Mar 4, 2012, 7:50 AM
Post #8 of 16 (1012 views)
Shortcut
Re: [dpreguy] Relocating the Cypres dispay unit [In reply to] Can't Post

 

Didn't they 'move' it to protect it a little better from hard exits and landing etc?


theonlyski  (D License)

Mar 4, 2012, 10:10 AM
Post #9 of 16 (984 views)
Shortcut
Re: [airtwardo] Relocating the Cypres dispay unit [In reply to] Can't Post

In reply to:

Didn't they 'move' it to protect it a little better from hard exits and landing etc?

If that were the case I would think the backpad would be the best location for it, not under one flap.


airtwardo  (D License)

Mar 4, 2012, 11:01 AM
Post #10 of 16 (965 views)
Shortcut
Re: [theonlyski] Relocating the Cypres dispay unit [In reply to] Can't Post

In reply to:
In reply to:

Didn't they 'move' it to protect it a little better from hard exits and landing etc?

If that were the case I would think the backpad would be the best location for it, not under one flap.

Like where the little window on mine rig has it located? Sly

Great place to stash stuff...my AAD is always on & has a glove on it. Tongue


riggerrob  (D 14840)

Mar 4, 2012, 2:55 PM
Post #11 of 16 (926 views)
Shortcut
Re: [airtwardo] Relocating the Cypres dispay unit [In reply to] Can't Post

In reply to:

Didn't they 'move' it to protect it a little better from hard exits and landing etc?

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

More to protect it from clumsy packers.
I remember when BOC came into fashion (early 1990s), it was popular to stand the rig on its shoulder yoke to stuff the pilot-chute into the BOC. This packing technique damaged cables on a lot of Cypres1 AADs.
Rigging Innovations responded by re-locating the Cypres control head to the back pad of its Flexon harness/container.
Similalry, the Telesis 1 student rig had the Cypres control head installed on a mud-flap (aka. 3-Ring cover). This was supposed to make it easier for a jump-master - in a cramped Cessna - to verify that it was turned on before exit. unfortunately, the shoulder yoke was so flexible that too many Cypres 1 needed cable repairs, so ... R.I. moved the location of the control head to under the reserve pin cover ... like most other rigs.

Newer electronic AADs (e.g. Vigil) have tougher cables, but that was the history of why many rigs have AAD control heads in their back-pads: to reduce damage when clumsy packers stand them on their heads.


piisfish

Mar 5, 2012, 1:23 AM
Post #12 of 16 (866 views)
Shortcut
Re: [riggerrob] Relocating the Cypres dispay unit [In reply to] Can't Post

and then you see people do the "drop & kick back " when they take their rig off Unsure


dpreguy  (D 835)

Mar 5, 2012, 6:53 AM
Post #13 of 16 (826 views)
Shortcut
Re: [riggerrob] Relocating the Cypres dispay unit [In reply to] Can't Post

I have been skiing this weekend (couldn't jump - too wiindy) and upon return to internet I re read my earlier post. It was "hard edged" and I apologize for thay. Like Alice in Dilbert "must control...."

Anyway, you were correct. Not all mfgs have a visible display panel place for AAD. Yes, all skydivers should check their reserve pin and loop at the beginning of each day, and look over every other part of their rig too.

My take on the relocation is that after mid 90's skydivers were no longer ashamed of having an AAD. Before- under the flap was a convenient place to put it and also no one had to know you had one. Just not 'manly' to admit you used an AAD. After the stigma of having an AAD was gone, then most mfg's went to the visible display windows becuse the skydivers wanted it out there to see it, and not wonder, "uh..did I actually turn it on this morning or was that yesterday that I did that?" etc .
The Vectors and RI rigs I did it on had an installation that was horizontal behind the neck. The Sunpatnh and another one were on the backpad, between the shoulders. Both places resulted in nice appearing and good results. I just followied the more modern placement of the same mfg., Guess other m riggers have done that too, as I saw one come thru my shop. Probably not even an issue now as most of those older rigs are out of service now anyway.
I seem to remember the ASTRA display unit was supposed to be mounted in/on the mudflap area too, and I think it even had a glowing light to indicate it was on. I have never seen one of these units but have the literature somewhere.


riggerrob  (D 14840)

Mar 6, 2012, 8:31 PM
Post #14 of 16 (745 views)
Shortcut
Re: [dpreguy] Relocating the Cypres dispay unit [In reply to] Can't Post

In reply to:
"... I seem to remember the ASTRA display unit was supposed to be mounted in/on the mudflap area too, and I think it even had a glowing light to indicate it was on. I have never seen one of these units but have the literature somewhere.
"

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

Astra control heads are too big to fit into most Cypres window pockets.
OTOH Astra cables are much tougher than Cypres cables, ergo less risk of damage by clumsy packers.


mjosparky  (D 5476)

Mar 7, 2012, 9:22 PM
Post #15 of 16 (682 views)
Shortcut
Re: [dpreguy] Relocating the Cypres dispay unit [In reply to] Can't Post

In reply to:
(OK I am rationalizing here)

It would depend on how you interpret Chapter 136. Or how the FAA will interpret it.

Sparky
Attachments: APPROVAL OF PARACHUTE ALTERATIONS.pdf (42.1 KB)


dpreguy  (D 835)

Mar 8, 2012, 7:07 AM
Post #16 of 16 (642 views)
Shortcut
Re: [mjosparky] Relocating the Cypres dispay unit [In reply to] Can't Post

I am vaguly aware of the reg, but felt that if the mfg said OK I'd be clear enough. (But I didn't even do that.) I just did it after talking at PIA to the owner of the company about the rig I was doing it to. OK my grammar is bad. Just wondered if any one else has done these.



Forums : Skydiving : Gear and Rigging

 


Search for (options)