smallest round to land into water?

[udder 0]

While deep in a porn induced trance, between images of a busty brunette and 2 gifted brothers, I wondered what is the smallest canopy you could deploy to land into water?

Considering jumps from 30m are rountinely done by those cliff divers, if a skydiver were wetsuit equipped(no burst colon) and suitably trained, what size drogue-like canopy would be large enough to slow them down to the veolicity achieved during a 100ft freefall? Given that their orientation must be feet to earth. It would be pretty funny watching someone in board shorts jump with a big boc pouch on their shorts. and no harness, just a handle to hold onto with one hand while the other holds the nose shut. Given that a mesh pc-like design is virtually fail proof(riggers chime in here about pc failure please, im using the fact that most base jumping is growing in popularity. ) maybe you would only need the one.

I need sleep

peace

"In one way or the other, I'm a bad brother. Word to the motherf**ker." Eazy-E

[fastphil 0]

goodnite udder...

[ZigZagMarquis 9]

Why don't you try jumping prgressively smaller rounds to find out? Maybe you'll get to a point you won't need one anymore!? Have someone let us know how it turns out... troll.

[NickDG 23]

Long ago Carl Boenish and Phil Smith (and some others) are using 16-foot cargo parachutes from cliffs and bridges and landing into water. They were hand held, sometimes even using two, one in each hand.

Before rollovers and tards (in BASE jumping) these are the first real un-packed jumps done in significant numbers . . .

NickD BASE 194

[riggerrob 613]

Moderators, pleas move this thread to the BASE Forum.

[DougH 270]

Quote

Moderators, pleas move this thread to the BASE Forum.

I would vote for moving it to the bonfire, or the trash.

"The restraining order says you're only allowed to touch me in freefall"
=P

[MrBrant 0]

I think it's an interesting question.

Don't be so quick to trash something because it is of no interest to YOU.

I know somebody who (back in his BASE days) jumped a decellerator chute (think drag racer) into water.
It was a very interesting story!

[Andy9o8 1]

Fine. Move it to the Mental Health forum.

[NickDG 23]

Andy,

I know that was tongue in cheek, but skydivers knocking BASE jumpers = wuffos knocking skydivers . . .

It was an attitude we dealt with in the early days of BASE that resulted in lost friends, lost DZ jobs, and it's what really drove BASE jumping underground. Some thought (or still think) we went "black ops" to conceal our actions from the authorities, but it was really to protect ourselves from small minds in the skydiving community.

What I've never understood (and still don't) is what's so sacred about flying machines (planes, balloons, helicopters). If I come home from downtown and someone asks where I've been I'll say I was out jumping. If I come home from the drop zone and someone asks where I've been I'll say I was out jumping.

NickD BASE 194

[pocbase 0]

I was wondering where the hell this thread came from all of a sudden.

Strange, as I was reading it I was thinking: "what is this bunch of wuffos??..."

The bums will never win Lebowski, the bums will never win!
Enfin j'ai trouvé:
Bieeeen

[NickDG 23]

May I ask what good moving the thread to here did?

Gee, it's like we mentioned the "BASE" word and got kicked off the drop zone.

The OP asked about small rounds, a question any jumper would eventually wonder about.

NickD BASE 194

[TomAiello 26]

Quote

May I ask what good moving the thread to here did?

I think (I don't know) that the moderator who moved it probably thought "no one but a BASE jumper is going to have any experience or insight into the issue of jumping a small round into water."

I certainly think that the average reader of this forum is more likely to have jumped a round (of whatever size) into water than the average reader of the General Skydiving forum, where the post started.

-- Tom Aiello

[email protected]
SnakeRiverBASE.com

[cesslon 0]

in some bridge jumps dwain done, he seemed to be wearing what resembled wetsuit shorts
were these to prevent a burst colon
or were they actually bicycle style shorts for a nice firm feeling?

[NickDG 23]

>>I think (I don't know) that the moderator who moved it probably thought "no one but a BASE jumper is going to have any experience or insight into the issue of jumping a small round into water."<<

That was my point.

I know skydivers could be having a ball jumping small rounds into large bodies of water from airplanes on an everyday basis. They just don’t realize it. Hell, I'd visit that destination DZ called "Water World" – to rent their double round (and legal to jump) ultra light water gear . . .

Skydivers and BASE jumpers should be learning from each other, not be further separated. We are all parachute jumpers.

I still don't get it . . . ?

NickD BASE 194

[pocbase 0]

Quote

I think (I don't know) that the moderator who moved it probably thought "no one but a BASE jumper is going to have any experience or insight into the issue of jumping a small round into water."

Sure, but it just doesn't come across that way. Regardless of what the moderator thought, the tone of some replies imply that no skydiver could learn anything from it, it's trash, let the BASE jumpers deal with it. Moving the thread without explaining the motive shows agreement with those posters.

Bah, I'm probably making a mountain out of a mole hill. It's late (that's my excuse)

The bums will never win Lebowski, the bums will never win!
Enfin j'ai trouvé:
Bieeeen

[TomAiello 26]

Quote

Regardless of what the moderator thought, the tone of some replies imply...

The moderator of a forum is not in control of the individual replies posted to it.

-- Tom Aiello

[email protected]
SnakeRiverBASE.com

[TomAiello 26]

Quote

in some bridge jumps dwain done, he seemed to be wearing what resembled wetsuit shorts
were these to prevent a burst colon
or were they actually bicycle style shorts for a nice firm feeling?

It's a shorty wetsuit, and it's to keep warm in the cold water, since he was doing intentional water jumps.

-- Tom Aiello

[email protected]
SnakeRiverBASE.com

[pocbase 0]

Quote

The moderator of a forum is not in control of the individual replies posted to it.

Of course, I understand that but

Quote

Moving the thread without explaining the motive shows agreement with those posters.

The bums will never win Lebowski, the bums will never win!
Enfin j'ai trouvé:
Bieeeen

[yuri_base 1]

Quote

I know skydivers could be having a ball jumping small rounds into large bodies of water from airplanes on an everyday basis. They just don’t realize it. Hell, I'd visit that destination DZ called "Water World" – to rent their double round (and legal to jump) ultra light water gear . . .

The smallest round to land into water without injury can be surprisingly small.

What is the typical speed of a 26' round? About 15ft/s? The speed after 33' jump is about 45ft/s, or 3x higher. To make the parachute descend at 45ft/s, its area should be 9x smaller, or its diameter should be 1/3 of 26', or about 9'.

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[NickDG 23]

>>It's a shorty wetsuit, and it's to keep warm in the cold water,<<

And a bit of welcome floatation too . . .

Hey Tom, why not pick up the Green Hotline and get this thread restored to GSD where we both know it belongs. I'm just preaching to the choir in the BZ.

Would reversing a decision be a DZ.com no no?

If not, I want a review of the play (sorry, I was watching football last night).

NickD BASE 194

[Zing 2]

I have done numerous round parachute jumps into water from aircraft. I have never jumped a round parachute on any of the base dives I did. Have to agree with Nick. Short sightedness often leads to never seeing beyond the horizon.

Zing Lurks

[Calvin19 0]

dude, you have NO idea how much time i have spent dreming about this exact thing. long before i started ROPE or BASE jumping, i had designs for super small 'round' canopies for cliff jumping. i mean, i have cliff jumped 85', and im not a cliff diver. i figured that the water impact was about 45mph. thats pretty fast.

a problem with round canopies that small is they orbit pretty fast when loaded high. making the decent faster, and not straight in. (a nonfeet first water impact would suck)

i think that it could be done with a well vented round that is about 10' diameter.

I REALLY want to try this.

you got me started on thinking about this again. bitch!

edited to add:
OK, i would not want to do this without a harness. that would be stupid. i mean, maybe after testing iwould. but the idea of handheld HARNESS is moronic.

[TomAiello 26]

Quote

a problem with round canopies that small is they orbit pretty fast when loaded high. making the decent faster, and not straight in. (a nonfeet first water impact would suck)

i think that it could be done with a well vented round that is about 10' diameter.

Get your hands on the Carl Boenish train jump footage (I've got it, if you want to watch it the next time you're in Twin), and look for Randy Harrison jumping a little tiny high performance round. The thing looks like a beanie waaaay up at the top of the lines, and it's tiny.

I think if what you want is super small, and you can perfect the system (good luck), a spinning round would work best. Spinning rounds have much greater drag per area of parachute and are much more stable. Unfortunately, Department of Defense (i.e. very well funded) researchers have been unable to make a spinning round larger than about 8 feet that will deploy reliably (but maybe that's large enough for this application).

You could test this kind of thing by doing canopy transfers off the bridge here, where you wouldn't have to chop your big main canopy until after you had the little round fully inflated and functioning.

-- Tom Aiello

[email protected]
SnakeRiverBASE.com

[Calvin19 0]

spinning round? i have not heard of this, does it spin as in around its verticle axis? the other 2 axis' stable?

-SPACE-

[460 0]

I believe it a 16 foot round from what I recall and it was Rick Harrison, not Randy. The round had it's apex pulled down to increase the inflation speed, but the thing spilled air so badly that it oscillated terribly. They also carried 8 foot round parachutes in their left hands to use as last case scenario reserve parachutes.

Looks like a death sandwich without the bread - Steve Deadman Morrell, BASE 174