Forums: Skydiving: Safety and Training:
So what do you see in this video?

 

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Shredex

Oct 16, 2012, 3:52 PM
Post #26 of 45 (1477 views)
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Re: [mjosparky] So what do you see in this video? [In reply to] Can't Post

I'm sure there was a reason for it.
Last I've checked when someone does that they flip over from the pilot pulling up. For some reason this guy's didn't...


davelepka  (D 21448)

Oct 16, 2012, 5:31 PM
Post #27 of 45 (1451 views)
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Re: [Shredex] So what do you see in this video? [In reply to] Can't Post

Quote:
Last I've checked when someone does that they flip over from the pilot pulling up. For some reason this guy's didn't...

When did you check on that? Either way, a throw out PC has the handle mounted to the apex of the PC, so if you hold the handle, the PC will trail, apex-first, in the wind and not inflate. No inflation = very little drag to pull the jumper up and over.

A pull out PC is set up the other way, the handle is mounted to the base of the PC. When you hold the handle and put the PC in the wind, it will inflate and the handle will get yanked out of your hand.

The last thing you want to do with a pull out is attempt to hang onto the handle. First off, if your PC is out, your container is open on a pull out, so if you did try to hang onto the PC and went ustable, you would be unstable with an open container. This is why the handle is on the base of the PC, so you really can't hang onto it due to the drag of the PC.


popsjumper  (D 999999999)

Oct 16, 2012, 5:50 PM
Post #28 of 45 (1447 views)
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Re: [davelepka] So what do you see in this video? [In reply to] Can't Post

OK my bad.


-ftp-

Oct 17, 2012, 2:03 PM
Post #29 of 45 (1334 views)
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Re: [mjosparky] So what do you see in this video? [In reply to] Can't Post

In reply to:

His O2 mask doesn’t fit. It is riding up over his shin.

Sparky

Wow all the way to his shin Tongue


pchapman  (D 1014)

Oct 17, 2012, 2:25 PM
Post #30 of 45 (1325 views)
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Re: [-ftp-] So what do you see in this video? [In reply to] Can't Post

Chit disturber! Smile


mjosparky  (D 5476)

Oct 17, 2012, 5:53 PM
Post #31 of 45 (1288 views)
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Re: [-ftp-] So what do you see in this video? [In reply to] Can't Post

In reply to:
In reply to:

His O2 mask doesn’t fit. It is riding up over his shin.

Sparky

Wow all the way to his shin Tongue

I think it was changed by one of the Greenies. Tongue

Sparky


freeflyfree  (D 28117)

Oct 18, 2012, 8:59 AM
Post #32 of 45 (1233 views)
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Re: [mjosparky] So what do you see in this video? [In reply to] Can't Post

Not all Pull Outs have the handle at the base of the pilotchute, mine has it on the Apex of it, so when I pull I can get a full arm extension before releasing it. and not get it inflated as soon as it sees air.

Container: Mirage.

Felipe


jdpml  (D 18680)

Oct 20, 2012, 2:30 PM
Post #33 of 45 (1121 views)
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Re: [freeflyfree] So what do you see in this video? [In reply to] Can't Post

Your mistaken about the pull out , it can be mounted so the pilot chute comes out upside down and may be held on to .
I have several jumps on this system and 7000 + on a regular pull out , not the best way to use a pull out as a total is EASY to pack into it if you dont know what your doing :-)))


ChrisClark  (D 8433)

Oct 21, 2012, 1:05 PM
Post #34 of 45 (1012 views)
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Re: [freeflyfree] So what do you see in this video? [In reply to] Can't Post

Could you post a picture of your main pilot chute. Just curious because that type of set-up was subject to a UK safety notice in 1984 after a pilot-chute in tow when the handle and lanyard entangled with the bridle.


Deyan  (D 322)

Oct 21, 2012, 2:57 PM
Post #35 of 45 (997 views)
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Re: [davelepka] So what do you see in this video? [In reply to] Can't Post

In reply to:
A pull out PC is set up the other way, the handle is mounted to the base of the PC. When you hold the handle and put the PC in the wind, it will inflate and the handle will get yanked out of your hand.

Most, but not all pull outs are set this way. Please check Next manual page 25 picture 38.

http://www.paratec.de/...ue-02-2010_email.pdf


mjosparky  (D 5476)

Oct 22, 2012, 1:59 AM
Post #36 of 45 (962 views)
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Re: [Deyan] So what do you see in this video? [In reply to] Can't Post

In reply to:
In reply to:
A pull out PC is set up the other way, the handle is mounted to the base of the PC. When you hold the handle and put the PC in the wind, it will inflate and the handle will get yanked out of your hand.

Most, but not all pull outs are set this way. Please check Next manual page 25 picture 38.

http://www.paratec.de/...ue-02-2010_email.pdf

I love the way they say their style of pull out has less pack volume the other kind. They have got to be kidding. Any volume difference would have to be measured in sq. millimeters.

Pack volume is greatly reduced, since it gets by with just one piece of tape unlike the more complex construction of a base Pull-Out-System requiring T4 tapes and grommets.

I have always thought that a pull out just adds one more layer of complexity and one more thing to get wrong.

Sparky


davelepka  (D 21448)

Oct 22, 2012, 7:27 AM
Post #37 of 45 (936 views)
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Re: [Deyan] So what do you see in this video? [In reply to] Can't Post

Quote:
Most, but not all pull outs are set this way.

I'm not sure why they think that would be in improvement over a handle attached to the base of the PC. The idea behind attaching it at the base of the PC is that by the time the PC is in the airstream, the pin has been pulled and the container is open. At this point, the last thing you want to do is hang on to your PC, so mounting it at the base makes it very tough to hang onto the thing.

So they reduced the pack volume by a tiny bit, but made it possible to hang onto your PC while your container is open. Seems like a trade-off to me, and a shitty one at that.


Deyan  (D 322)

Oct 22, 2012, 2:00 PM
Post #38 of 45 (896 views)
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Re: [davelepka] So what do you see in this video? [In reply to] Can't Post

In reply to:
Quote:
Most, but not all pull outs are set this way.

I'm not sure why they think that would be in improvement over a handle attached to the base of the PC. The idea behind attaching it at the base of the PC is that by the time the PC is in the airstream, the pin has been pulled and the container is open. At this point, the last thing you want to do is hang on to your PC, so mounting it at the base makes it very tough to hang onto the thing.

I'm sure that if you drop them an e-mail, Stefan or Jupp will answer your questions.
The only reason I could think of why this pull out is set this way is to keep it as close as possible to the throw out as a feeling. By the time you get the pin out, the PC will be already half way out....then again, the best answer will come from Paratec.
The real pull out might be problematic for someone with short hands or a cameraman with big wings.

Quote:
So they reduced the pack volume by a tiny bit, but made it possible to hang onto your PC while your container is open. Seems like a trade-off to me, and a shitty one at that.

If you hold on to your PC on a throw out system, the chance that your container will be open as well is close to 100% , so I don't see the problem here. But I might be wrong that the chance is that big.


davelepka  (D 21448)

Oct 22, 2012, 5:19 PM
Post #39 of 45 (878 views)
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Re: [Deyan] So what do you see in this video? [In reply to] Can't Post

Quote:
If you hold on to your PC on a throw out system, the chance that your container will be open as well is close to 100% , so I don't see the problem here. But I might be wrong that the chance is that big.

The chance is way lower than 100%. All of the times I've seen someone hang onto a PC were students, and none of them had their container open before they finally released the PC.

I think it all comes down to how you pack your PC and bridle. If the bridle is allowed to unfurl the moment the PC is out of the pouch, it probably won't pull your pin when you get your PC to full arms extension. If your bridle is packed in such a way that it does not easily slip out of the PC, then you will probably pull your pin as you bring your arm forward.

Quote:
The real pull out might be problematic for someone with short hands or a cameraman with big wings.

Which would be a reason not to jump a pull out. Re-engineering the pull out to allow for hanging onto the PC with an open container does not seem like the answer.


NovaTTT  (D 17887)

Oct 22, 2012, 8:01 PM
Post #40 of 45 (854 views)
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Re: So what do you see in this video? [In reply to] Can't Post

USPA SIM:

G. Minimum opening altitudes [E]

Minimum container opening altitudes above the ground for skydivers are:

1. Tandem jumps—4,500 feet AGL

2. All students and A-license holders—3,000 feet AGL

3. B-license holders—2,500 feet AGL

4. C- and D-license holders—2,000 feet AGL




Looks to me like his container is open. What's the problem? Angelic


jclalor  (B 33202)

Nov 2, 2012, 8:46 AM
Post #41 of 45 (745 views)
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Re: [SEREJumper] So what do you see in this video? [In reply to] Can't Post

My favorite pilot chutenvideo.


http://m.youtube.com/?reload=3&rdm=mcth144dd#/user/rbobby52


(This post was edited by jclalor on Nov 2, 2012, 8:57 AM)


Trafficdiver  (C 39999)

Nov 3, 2012, 2:28 PM
Post #42 of 45 (673 views)
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Re: [jclalor] So what do you see in this video? [In reply to] Can't Post

In reply to:
My favorite pilot chutenvideo.


http://m.youtube.com/...144dd#/user/rbobby52


freeflyfree  (D 28117)

Nov 9, 2012, 12:10 AM
Post #43 of 45 (583 views)
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Re: [Trafficdiver] So what do you see in this video? [In reply to] Can't Post

Mirage's, I remember explicitly writing "on the apex of pilot chute" I don't know if they offer it at the bottom

http://www.miragesys.com/...g3/deployment-style/


davelepka  (D 21448)

Nov 9, 2012, 4:45 AM
Post #44 of 45 (553 views)
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Re: [freeflyfree] So what do you see in this video? [In reply to] Can't Post

Quote:
I remember explicitly writing "on the apex of pilot chute" I don't know if they offer it at the bottom

Do you mean the Mirage pull-out PC has the handle attached to the apex of the PC? The last pull out I jumped was a Mirage, and the lanyard was attached to the bottom of the PC.

Again, for operational reasons I think they attach it to the bottom, I would be surprised if you could order it attached to the apex.


freeflyfree  (D 28117)

Nov 9, 2012, 6:35 AM
Post #45 of 45 (533 views)
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Re: [davelepka] So what do you see in this video? [In reply to] Can't Post

Quote:
I would be surprised if you could order it attached to the apex.
Quote:

It was something my rigger wrote in the order form, the option is not there, it just says "pull out".

A few of my friend had them like that, back in those days 2000 pahokee.

I heard of a case where the bridle was packed sawndwiched between the bottom of the reserve tray and the Dbag, and didn't want to come out and play resulting on some kind of malfunction...I don't remember details.

Felipe


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