body shape and swooping

[sight_burner 0]

Ok I know its all about the pilot not the canopy but to go along with the pilot would body shape (Im predicting yes) have a real significant effect on how far your swoop goes. Now shannon is a tall guy compared to jay or heath right! So when J.T broke the record could it have had something to do with the lesser drag his body was producing or! because he popped his wing at the right time in the swoop????? or would both of those actions sum up the swoop it self.



Andrew

I don't care about fame I just want people to know my name qote ( Andrew Cebuhar)

the thread is dead

[AggieDave 6]

That's an interesting thought, although I'm not sure how much of a difference it makes with our current technology canopies. Possibly in the future we'll see swoopers sort of like jockeys but FAT so they can load up a larger canopy.

Although its very common to see swoopers wearing fairly tight clothing for less drag.

--"When I die, may I be surrounded by scattered chrome and burning gasoline."

[Jimbo 0]

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That's an interesting thought, although I'm not sure how much of a difference it makes with our current technology canopies.

Given that we've reached the point where we're now removing ALL the extra drag we can (think: pilot chutes, extra thin lines, sliders, 7 cells vs. 9, etc . . . ), I think that body shape could and likely does make a bit of difference. Does it make a difference to you or me or the casual weekend swooper running the beer line? Probably not. Does it make a difference to the Heath's and Jay's of the world? It might.

-
Jim

"Like" - The modern day comma
Good bye, my friends. You are missed.

[CanuckInUSA 0]

Or you could be like Luigi and wear everything as weight but the kitchen sink. I got to hold what Luigi jumps yesterday and I had a hard time holding it let alone swooping with it strapped to my body.

Try not to worry about the things you have no control over

[marks 0]

everything that has to do with drag, matters.

[AggieDave 6]

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I got to hold what Luigi jumps yesterday and I had a hard time holding it let alone swooping with it strapped to my body.

See, that's why I think there'll be a revolution in swooping as things continue. I think that guys like me will have an advantage at some point...then again, I really need atleast 3 more years of hard jumping to even get near that level of skill...

Well, atleast on a 120 I'll load that at about 2.4:1 without any weight added.


Ron:

I'm going to change my initial opinion and agree with you, before you know it we'll see swoopers wearing full body slick suits like the guys who do speed skating or bobsledding. As for guys like me, DZ swoopers, its not gonna matter (although I can notice a *slight* different when swooping in my FF suit or just a pair of jeans and a t-shirt).

--"When I die, may I be surrounded by scattered chrome and burning gasoline."

[Tonto 1]

Not directed at you - sight_burner....

I removed A LOT of junk from this thread. Topical forums get tedious when you have to wade through pages of one line gags to get a snippit of useful info.

Post the Bullshit in Bonfire please people.

t

It's the year of the Pig.

[grega 0]

most definitely.

some time ago i did a few calculations, and it's a huge difference. i mean like it was mentioned, it's said that designers are choosing 7cell canopies instead of 9 because of a line drag. khm well i won't say it's not true but having worse airfoil shape for that little drag difference...
back to question: well the diference is that much if a pilot wears a tight dress instead of casual, the difference in drag is more than 7cell compared to 9cell because of line drag (excluding the shape-drag of 9cell comparing to7cell, only the line drag). so if a pilot would curl up in a ball reducing his surface by almost half that would definitely mean a lot !!

I mean put a flat hand out of car at 100km/h and then make a fist. Well if at that small surface the difference is so obvious, it has to be even more at the whole body surface...

"George just lucky i guess!"

[twnsnd 1]

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sort of like jockeys but FAT

I think we're pretty much seeing plenty of that already.

-We are the Swoophaters. We have travelled back in time to hate on your swoops.-

[DrewEckhardt 0]

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most definitely.

well the diference is that much if a pilot wears a tight dress instead of casual, the difference in drag is more than 7cell compared to 9cell because of line drag (excluding the shape-drag of 9cell comparing to7cell, only the line drag). so if a pilot would curl up in a ball reducing his surface by almost half that would definitely mean a lot !!

So we have distance/speed swoopers wearing tight go-fast shirts, people adding lead and jumping bigger canopies so their drag is less relative to the total, and some people lean forward and pull up their feet.

[kelpdiver 2]

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See, that's why I think there'll be a revolution in swooping as things continue. I think that guys like me will have an advantage at some point...then again, I really need atleast 3 more years of hard jumping to even get near that level of skill...

Well, atleast on a 120 I'll load that at about 2.4:1 without any weight added.

Does it matter where the weight is? If you're were going to add weight, does it help to have it near the feet for a greater moment arm, or near the head for a shorter one, closer to the canopy?

ankle weight can be shifted forward or back of the CG, whereas us anvil types have less flexibility on the matter.

(don't worry about me - I just like to watch)

[Bartje 0]

So it can help to make yourself as small as possible during setup and swoop.
What about the gravity point? When you hold your feet as high as possible, what does happen with the weight?

A FreeFly Gypsy

[hkf 0]

Gotta think about having 1 leg out straight to make the gate.

[Spizzzarko 0]

Oh you know it baby...

I think you have personally seen a fat man fly. Just keep that image of me flying past those alcey bastards sleeping one off in their tent at rantoul!!! It was good to see you this weekend.

Grant

[AggieDave 6]

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Does it matter where the weight is? If you're were going to add weight, does it help to have it near the feet for a greater moment arm, or near the head for a shorter one, closer to the canopy?

ankle weight can be shifted forward or back of the CG, whereas us anvil types have less flexibility on the matter.

Shit, I'm not sure. I know where *my* weight is located and I don't think I could change the location of the weight with out some sort of dramatic whaling accident out on the open seas.

I doubt we'll see folks wearing ankle weights and such due to the increased possibility of serious injury to the weaker parts of the body...like ankles.

--"When I die, may I be surrounded by scattered chrome and burning gasoline."

[hkf 0]

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I doubt we'll see folks wearing ankle weights and such due to the increased possibility of serious injury to the weaker parts of the body...like ankles.

I heard one of the PD guys where wearing them at the wccp, I'll double check my info and find out who, and possibly why

[Tonto 1]

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Gotta think about having 1 leg out straight to make the gate.

Trade off here...

One leg offers less paracitic drag than 2, but may load the harness and require toggle/riser input to correct. Which one is the more "expensive" move, aerodynamically speaking, I have no idea.

There are many, many sports that take redusing aerodynamic drag to extremes. I'm sure swooping will follow.

t

It's the year of the Pig.

[hkf 0]

if you get it really slick i guess you could stay small, then drop a leg for the gate and then bring it back up, maybe lean to the left with your upperbody as you drop the right leg to keep the loading even!!!

[AggieDave 6]

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There are many, many sports that take redusing aerodynamic drag to extremes. I'm sure swooping will follow.

Are you suggesting that dedicated swoopers will start shaving their legs and arms?

--"When I die, may I be surrounded by scattered chrome and burning gasoline."

[ianmdrennan 2]

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Are you suggesting that dedicated swoopers will start shaving their legs and arms?

Why do you think I keep my hair so short

J/K

Performance Designs Factory Team

[Bartje 0]

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Why do you think I keep my hair so short

Damm, and I do efforts for long hair.
What would be the perfect clothing for swooping?
At this moment it is all cool but imagine that in the future swoopers jump with bodygloves so tight that ....

A FreeFly Gypsy

[lifewithoutanet 0]

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I doubt we'll see folks wearing ankle weights and such due to the increased possibility of serious injury to the weaker parts of the body...like ankles.

Actually, there's at least one (if not a couple) wearing weights on his ankles now. If I remember correctly, he's only using them for the speed event. Putting the weights lower helps add something to the equation, helping to build more speed. It's something like a 3:1 ratio. Every pound on his ankle is equivalent to three pounds on the upper body.
I'm off to wrap my head around the physics a little more. I might be incorrect on this...gotta figure it out.
-C.

[AggieDave 6]

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Actually, there's at least one (if not a couple) wearing weights on his ankles now.

Well then, I stand corrected. Thank you for correcting my information.

It still seems a bit risky to me. Ankles aren't strong at all and adding weight greatly increases risk of injury.

--"When I die, may I be surrounded by scattered chrome and burning gasoline."

[lifewithoutanet 0]

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It still seems a bit risky to me. Ankles aren't strong at all and adding weight greatly increases risk of injury.

I see your point, but to clarify, it's not like this/these pilot/s are transferring the 3:1 ratio to their ankles and not wearing any weight up top.
Used to be (and maybe still), some runners would wear ankle-weights. I see far more risk in repeated shock to the joints there vs. sub-terminal opening shock at deployment. I trust those experimenting with such a system are aware of and accounting for that sort of risk. When you're at that level, you put a lot of preparation into it.
Also, the design incorporates a quick-release system should the pilot need to cut the weight away.
Once I've got a little more info, I'll drop you a note.
-C.

[AggieDave 6]

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When you're at that level, you put a lot of preparation into it.

No doubt!

However, what about all the wanna-be's we'll see starting to wear the weights so they can be just like their much more experienced "heros?"

Well, after they destroy their ankle I think they'll figure it out.

--"When I die, may I be surrounded by scattered chrome and burning gasoline."