Basejumper.com - archive

Just curious...

If you wanted to jump a BASE rig in skydiving, you would explode from the force of the opening yes? Because of the terminal velocity, high speed?

However, why do you have normal, not physically injuring openings while jumping of Trollveggen? As far as I remember it's ~1200 meters high and you reach terminal velocity in 15 sec right? And as far as I know you delay more than 20 seconds when you jump of Trollveggen right?

So why do you live after the opening of Trollvegen and wouldn't if you did a skydive with a BASE rig?

Sometimes, when we are going really fast, we use this thing called a "slider". It slows us down enough so that we don't explode.

That's really interesting news... Since I know plenty of people who have done skydives with their BASE rigs and are still alive. I'd say think, then think again and maybe use the search function before posting. :)

I guess it's me not knowing actual facts probably. I was asking someone and probably misunderstood.

So it's ok to do a normal skydive with a BASE rig and not get hurt?

To the guy who PM'ed me and the others about the slider, yes I know that it slows down the opening of the canopy, but even with slider your BASE canopies open incredibly fast (at least that's what I've seen in the BASE videos)...

I explode every time I BASE jump.

Oh god!

Sorry, I said it wrong, I should have said: "get hurt or die because of the impact of the opening". Now you have to mock me forever right?

Seriously, what's up with people being such asses on the internet even when they are not 100% anonymous?

It's just a simple question to which I don't know the answer, I'm curious, so I ask. What's the big problem with that?!

just because you can use a SEARCH button, it will answer all your questions, don't be lazy ass

Ok, I did search, went to a post and found a really good sentence...

"First, I did a forum search on this topic and there are over 200 pages of posts.....and call me lazy but I am not going through each post."

Edit: if you actually take your time to open, read and reply with "use search" (or any other more aggressive or worthless troll type reply), you could actually instead reply with a normal decent reply which would answer my question, this would make you great people...

it's because we don't carry these heavy rigs with several canopys and metal and computers inside.
less weight=less speed= survival!

hence terminal base velocity is something completely different. no need to worry!

There are multiple different gear configurations that allow the openings to open in different amounts of time. For example, a terminal situation with the slider up will help slow the expansion speed of the canopy and make the opening shock nicer. Body position I would say has a decent potential for causing injuries, like a head low deployment with a fast opening isn't going to be a massage for the back. Hope that helps in a nutshell.

Ok conserning getting hurt in the opening - yes (if you know how to pack slider up properly). Ok regarding legality of it - in most countries no (but then again that wasn't the thing you were asking for). I've done maybe 300+ slider up deployments (from 4s to full terminal) with BASE rigs and I've never been hurt on opening. They do open crisply but nothing you can't handle. There are couple of tips and tricks you can do to slow it down if your rig opens too hard, those you need to learn from someone along the way.

One thing that comes into mind is the defintion of "normal skydive." If you mean to do freeflying with your BASE rig then it might not be ok regardless of how you pack it. Generally BASE rigs are not necessarily designed to take such highspeed airflows from various angles and premature deployment in full speed headdown will probably spank you pretty hard with BASE rig (probably will do it with any rig). Also opening speeds on freefly jumps tend to be higher anyways than "normal terminal" so I pack my skydiving canopy to open slow anyway on those. Also on modern bigwall jumping the "big wall terminal" (vertical) speed is considerably slower (than your average FS-terminal) since the usage of modern tracking gear (or WS). Of course while tracking or with WS you have higher horizontal speed.

So (as always) there isn't just one answer to the question of "terminal speed". But to make long answer short, if you track with your tracking gear for 15 secs and deploy your base rig it will open the same regardless if you exited from airplane or from cliff. It will not know where you exited from and it won't have any effect on hardness of the deployment.

Thanks for the decent answers

Just a quick one. So it is ok to do a skydive with a BASE rig with slider up option?

Edit: never mind, got my answer up there.

Thanks again

look at the bottom of the page. you'll see a button for advanced search. that might help.

why not go through all the posts? you might learn something! sure it might not be the answer to your question, but it still will add to your knowledge.

remember the saying...
"give a man a fish and you feed him for a day.
teach a man to fish and you feed him for a lifetime."

it may seem rude, but getting jumpers to do the legwork (fish) is important in BASE.

I'll keep that in mind

I'm really not aiming to be an asshole here.

I'm just looking for answers to questions...

I'm sorry if I'm looking for them in a manner not suitable for you, but hey, you won't please everyone, however I'm still learning, so pleeeeaaase bare with me as with every other newbie

Well I believe your question about packing and deploying
BASE gear at high speeds has already been answered by
people much more qualified than myself (4 slider jumps).

S0Ooo instead I will address your other question:


Does someone being anonymous really make their
smart ass & very funny retorts less stinging to you?


By the way, if you had skydiving knowledge you'd
know that reserve sliders and main canopy sliders
are different, the former usually has an open area
while the latter are solid.

you and everyone else are free to ask whatever BASE related question you'd like. that part does not matter to me.

I provide newbies a bunch of links that I doubt they read. if they did, they might realize the dynamics present on this forum.

newbie question.
blunt response from someone tired of reading the same questions posted over and over again.
newbie feels slighted by reply. gets angry and defensive. might even lash out calling folks here names.
newbie gets mocked even more.
newbie fails to realize this is NOT a dz with staff paid to answer the same questions patiently.
newbie storms out in a huff.

post basic questions and bring a thick skin.
or
lurk for awhile, read articles, threads, etc.
it's the equivalent of hanging out at a bonfire listening for awhile until speaking.

your actions will greatly influence the responses/consequences. this is BASE. choose wisely.

this is not the first time you come here and expect for information to be handed out to you.

If you want to learn about BASE, be PROACTIVE. The 200 threads that you refer to - READ THEM. There's lots of good information on this site, though you obviously will have to siphon through some garbage. If you are not willing to do that, than you are just another Perrine jumper with who only owns a 42" PC and does not have, or care to have slider up knowledge. (i realize this does not apply to all, but I am just generalizing)

Furthermore, your question reeks of laziness to read, and lack of even BASIC knowledge of skydiving/BASE. Very sadly, it does NOT preclude you from being a skydiver. And that's just wrong.

Why do I say this ? Because I am guessing that you have seen dozens of BASE videos (re: dorkzonehero. "After watching over 400movies, and making over 12 jumps from the Perrine bridge, I gathered so much knowledge about basejumping " (re : http://www.dorkzonehero.com/ - taken WITHOUT permission - so sue me) and lots of those videos have been of WS flight, which result in very fast deployment speeds. Anyone with half a braincell with realize that terminal velocity + BASE is not a recipe for exploding. Unless of course you pack your canopy wrong. But then again, a Sabre1 opening can be more brutal than a 4 second delay without a slider.

In short - read more, make an ass out of yourself less.

Sure, as long as you're not a whiney modern skydiver, aren't stupid enough to deploy at freefly speeds, and the pilot doesn't kick your butt for putting his pilot's license at risk for the FAR violation.

A lot of those people that started jumping after PD Spectres became common have a real distorted opinion of what constitutes a painful hard opening.

If you're a real man or woman it's just not an issue.

That's funny!

That's also funny!

The real trouble with terminal base comes from awesome visuals and dumping in the basement.

its so hillarious that every thread started by sangi is completely unnecessary, and the question could be answered by hitting the search button.
and hes told everytime, again and again...

regariding explosions and sliders:
use common sense, please!
maybe read manuals of base canopies?
maybe read through the article section on this site?

hey, have you ever heard of some magical tool named google? (*whoa*)

like the guys at my dropzone use to say:
USE YOUR BRAIN!

So what?

I like the threads he starts. If he didn't, 554 wouldn't have had such a grand opportunity to bestow such wisdom.

In this instance, I entirely disagree.


Technically there is no Sabre1. Only Sabre and Sabre2.

The hardest opening I've ever had was on a Velocity. Hard hard. Debilitating hard. Was in good shape at the time otherwise would have been hospitalized hard... ow.

Still I've never had a BASE canopy open harder than many of the openings I've had on your average skydiving canopy.

RE: Hookitt's mention of hard openings SKY vs. BASE

Well sorta in my long, drawn out, well spelled style...


We all know that expectations affect perception.
Simple example you reach for what you think is
beverage A and you ingest beverage B, now you
could love both but the switch-a-roo will make
either taste weird and bad.


Hard BASE openings

1st time I went stowed it hurt but more from the
fear and unexpected intensity than the opening.


Hard SKY openings (in order of severity)

Test jumping my Mojo 280 out of a cessna from a
shopping bad, forgot to raise the slider and damn
near split myself in half.

My first skydive wing was a $200 microline PD210.
The student gear I had been jumping had dacron...
so like an idiot I packed it with big rubber bands
and 1 wrap. I came down confused and bleeding
from the shock and biting through my lip.

Worst opening ever was on a tandem with a fatty
who I had to wrestle with on a ragged out canopy.
It felt like I had been hit by a car... fatty's head
slammed me in the face, got a riser slap, helmet
broke, and inside of my thighs were purple. Ouch!

www.letmegooglethatforyou

http://lmgtfy.com/?q=+base+jump+slider+up