APF Reverse Riser SB

[Hooknswoop 19]

http://www.apf.asn.au/apf_admin/downloads/rigging/apf/apfsb040610a.pdf

Derek

[sundevil777 102]

Conventional risers would also not release during a PC in tow scenario. As long as it is still in tow, it would not matter if they were 2-shot capewells (edit-actually capewells would be more likely to actually eject themselves than a conventional 3-ring setup).

People are sick and tired of being told that ordinary and decent people are fed up in this country with being sick and tired. I’m certainly not, and I’m sick and tired of being told that I am

[Harksaw 0]

Yeah, I'm guessing something is wrong with the wording.

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A recent fatality has highlighted the fact that some jumpers are using reverse risers on equipment that was not designed to use them. When improperly mated to these rigs the risers will not release in a pilot chute in tow / face to earth attitude resulting in an extremely hazardous reserve deployment situation and likely entanglement.

If you've got a pilot chute in tow, why would it matter if the main risers stay attached? The main d-bag isn't coming out to pull them off anyway.

__________________________________________________
I started skydiving for the money and the chicks. Oh, wait.

[Remster 30]

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Yeah, I'm guessing something is wrong with the wording.

Quote

A recent fatality has highlighted the fact that some jumpers are using reverse risers on equipment that was not designed to use them. When improperly mated to these rigs the risers will not release in a pilot chute in tow / face to earth attitude resulting in an extremely hazardous reserve deployment situation and likely entanglement.

If you've got a pilot chute in tow, why would it matter if the main risers stay attached? The main d-bag isn't coming out to pull them off anyway.

From memory, it was a bag-lock.

Remster

[Rdutch 0]

Actually, all gear is designed with the accesories that come with it. It isn't a good idea, even though it is done a lot, to mix different manufacturers parts with different containers.
The French risers are designed for a higher placement of the Main ring, using them on a container not designed for them does pose the possibility of a hard release. One of the hardest things for a manufacturer to design is riser covers that stay closed when they are suposed to, and open with the pressure applied by a bag lock.

Ray
Small and fast what every girl dreams of!

[Hooknswoop 19]

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Conventional risers would also not release during a PC in tow scenario. As long as it is still in tow, it would not matter if they were 2-shot capewells

I agree and figure they meant a bag lock.

Reverse risers are a bad idea regardless of the positionof the large ring.

Derek

[Remster 30]

I know of the Atom and the Talon as having factory reverse risers. Any others?

Remster

[masher 1]

This is a SB in response to this fatality: http://www.dropzone.com/cgi-bin/forum/gforum.cgi?post=1083393;#1083393


I've sent an email off to the APF Director Rigging asking for some clarification.

wait out

--
Arching is overrated - Marlies

[riddler 0]

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If you've got a pilot chute in tow, why would it matter if the main risers stay attached?

It's never happened to me, but I think I understand that:

P/C in tow is usually caused by a stuck closing pin or stuck bridle. If you then deploy the reserve, it increases the chance of the closing pin or bridle of the main becoming un-stuck and opening the main. This is because the container deforms somewhat, since the reserve is no longer in it, and that deforming container may pop out the pin, or shake out the bridle.

If you opted to cutaway before deploying the reserve, the main (if it comes out at all) will release, which my increase or decrease the chance of an entanglement, depending on what happens. If you did not cutaway first, then you have a two-out scenario, which poses it's own risks. Pick your poison

Trapped on the surface of a sphere. XKCD

[thermite 0]

An experienced instructor, (who will remain anonymous) suggested (after the British girls death in OZ) that I should think about changing my reserve drill if I have a total and I'm still belly to earth.
-Cut away
-(If alt permits i.e- normal pull height) quickly check rings and pop them free if still coupled.
-Dump reserve.

Does this sound like a suitable suggestion?

I have a PDF Atom Legend with a PDF canopy.

[riddler 0]

I would not recommend wasting time with your second step ("quickly check rings and pop them free if still coupled"). A PC-in-tow is a high-speed malfunction. Don't waste any more time doing any extra steps.

As far as procedures, I recommend reading the 2004 SIM, Chapter 5, section E.

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(i) For a pilot-chute-in-tow malfunction, there are currently two common and acceptable procedures, both of which have pros and cons.

(ii) An instructor should be consulted prior to gearing up, and each skydiver should have a pre-determined course of action.

Pilot chute in tow procedure 1:
Pull the reserve immediately. A pilot-chute-in-tow malfunctions is associated with a high descent rate and requires immediate action. The chance of a main-reserve entanglement is slim, and valuable time and altitude could be lost by initiating a cutaway prior to deploying the reserve. Be prepared to cutaway.

Pilot chute in tow procedure 2:
Cut away, then immediately deploy the reserve. Because there is a chance the main parachute could deploy during or as a result of the reserve activation, a cutaway might be the best response in some situations.

Both methods are acceptable, but you should decide which method you are going to use before your next jump.

Trapped on the surface of a sphere. XKCD

[thermite 0]

I would rather carry out either of those two before I tried what was suggested to me.