Basejumper.com - archive

What are the major causes?
Please add to the list as you see fit.

-Burble from body position from a weak toss
-Incorrectly configured packing of PC
-Too much pin tension
-Incorrectly routed bridle
-Undersize/ oversized PC?- Too much material flapping around out there or not enough?

The ones that I've seen
- worn out PC
- bridle stows too tight on a Multi
- a waxy type ZP that one of the manufacturers used a few years back
-a packed PC left in the BOC for too long

Ill add packing a pilot chute too long and narrow. Not really sure what happened, but I had a nasty hesitation at moab with a pilot chute that was packed more long and narrow than I usually do. Never packed it that way again. Nic I still need a copy of that vid.

wingsuit

You're really trying to identify causes of two types of problem.

There's pilot chute hesitation, and pilot chute in tow.

Pilot chute hesitation is the scary one for me because it can be more random and unexplainable. There are ways to guard against it, but never a guarante that you won't experience a hesitation no matter what you do.

Some causes:
1.) Long interval between PC packjob and deployment
2.) Weak pitch into a burble (wingsuit or otherwise)
3.) Short bridle
4.) Heavy PC material construction
5.) Poor technique packing the PC
6.) Incorrect PC trim (centerline length for example)
7.) Condition of PC.

Pilot chute in tow is different. This means that the pilot chute has inflated but for some reason, has failed to open the container and continue the deployment. This is easy to guard against and is almost always jumper error.

Some causes:
1.) Pin tension that is not compatible with intended airspeed at intended delay.
2.) PC size that is not compatible with intended airspeed at intended delay.
3.) Misrouted bridle.
4.) Damaged curved pin (burrs).

Ensure that the pilot chute you selected will have sufficient drag to overcome pin tension at the delay you have planned. Ensure that the Pilot chute will have an appropriate amount of drag to get the canopy to linestretch at a rate that is appropriate for your intended delay.

Inspect your rig! Inspect your rig!

Know the condition of the individual rig components.

Don't look at your BASE rig making sure things are correct. That's not the proper mindset to find problems.

You need to look at your BASE rig trying to find what's wrong. Suspect that there is an error somewhere and try to find it. It's a subtle difference in mental attitude but it's helped me find several (likely fatal) rigging errors at the exit point.

You don't always have to be safe, but you can always be careful.

 

No it think that was someone else. I never made it out to day canyon. But yah, dont fold your pilot chute like that. My spring break is in June, not sure what im doing yet.

Deploying in a stand up position after back flips can cause a PC in tow. If you have a new container with stiff pin cover flaps and you are in the vertical position or just a hair past vertical it can tow. This has happened to me. Try this:
In the just past vertical position try and lift up your packed container by the bridal. You will have to stabilize it with your other hand. Sometimes you can lift your entire rig off the ground without popping the bottom pin.
Solution: Whenever I go slider down I undo the pin cover flaps.