d_goldsmith

I'm pretty sure they're just messing with each other. Sonja deserves credit too, that's an awesome shot.

I hate typing lol, but man that was great.

I just didn't want the skydivers pointing her in the wrong direction. Sorry.

Great points.

I just realized if you are really head strong on the points you made you might have taken offense to me joking about you getting that from Jason. I was just messing with you. And I forgot to make my main point. I don't think decreasing mass of the PC is the way, I was thinking that pitching straight behind you instead of to the side would stop that pendulum and make all the force from one direction. Then the only way it could oscilate is wierd air or bad trim. However I'm sure there are down sides to this (first one to mind is PC trapped in burble). I watched Baseclimb and when Nick Feteris gwent handheld he stowed the bridle in his container and held the PC by the bridle attachment point, and then just lets go of it in freefall. Then again this was in the 90's

Have you been talking to Jason about this, or are you just reading his text books. j/k Check out this video. The main jumper in view pitches forward (blue PC) and you see it bounce (pendulum) backward and if you watch close you see it start to extract the canopy backward. It then bounces back forward and straightens the canopy out pretty well. http://www.skydivingmovies.com/ver2/pafiledb.php?action=file&id=3060&string=low%20pull Same thing in this one. http://www.skydivingmovies.com/ver2/pafiledb.php?action=file&id=1187&string=jinx The first one on this video is a staight out pitch, that goes left of center, back right and then starts clockwise. It seems like it might have been feet side of the attachment to the container, and it goes slightly forward as it is going left, and then slightly backward when it bounces right, and the backward and right might be what causes the clockwize spin. http://www.skydivingmovies.com/ver2/pafiledb.php?action=file&id=1551&string=pbasegainers This could all be the chaos of air and trim of PC, but it seems like pendulum force to me.

I'm pretty sure he meant a good sample of BASE jumpers to represent the average of types of gear used.

Good point. It's probably a safe estimate for wingloading. I wonder if the canopy's weight effects wing loading. Obviously the lines and everything below them do, but does the canopy effect it at all? Bottom skin only maybe?

If a 50lbs person added the extra 20 for bad landing area their windloading goes down to .38 I have no experience with a wingloading that low, but I'm assuming the canopy would collapse very easily and not represurize very easily. What is recommended wing loading for high wind or easy landing area, normal, and bad landing area?

This only really works for people in the 160-180lbs range though, doesn't it? Imagine using this on a 50 lbs person. If gear is 15lbs wing loading .43 On a 300lbs person, wingloading .7875

15lbs should be pretty close.

I agree. Where are all the experienced BASE jumpers at. Out jumping or something...jeez. hehe Hopefully soon there will be more experienced BASE jumpers reading this thread to review the information already provided and correct any misinformation and provide additional valuable information.

I didnt' think to look at her wing loading because that seems so small. I wonder if she took gear in to consideration when putting in the weight. I no a few pretty small girls that are experienced BASE jumpers, and they probably wouldn't recommend a 150 for BASE unless you way 80-85lbs

I have no wing suit experience, but since I don't think RW is that important in beggining BASE knowledge, I would assume learning to wingsuit fly now wouldn't slow your BASE knowledge growth. It might impare your canopy flight learning though?

150 is way to small for BASE. Some people say you could use it for BASE, but I think it's a bad idea. BASE canopy flight is not only accuracy, but soft landings. Sometimes the ground your landing on isn't ideal and the softer the landing the better. What if wierd turbulance messes with your canopy 10 feet up. More material above your head means softer collision with the ground. What ever your ground may be.

If you into wingsuits, more power to you, but in terms of BASE I think you should add complexity to as slowly as possible. You probably don't want to get in to wingsuit BASE to soon.

Yah sabre is 9 Triathalon is 7. How big was the Triathalon and do you still have access to it? You want as much experience as possible on a big 7 cell so that you can handle BASE specific situations with your big BASE 7 cell. Imagine having only 150ft of altitude with a tail wind at your back, trying to setup a landing into a 30ftx30ft box. Lets see you do that with a little parachute without plowing in. This is great stuff to practice under a big 7 cell http://asylumbase.com/adobepdf/fjccanopy.pdf NOTE: Some of this stuff will hurt you under a small canopy. You should also look in to an FJC. I recommend http://snakeriverbase.com/ Freeflying experience isn't going to be imperitive in BASE, but it will be important on terminal jumps. I'm hoping some experienced BASE jumpers come in to this thread soon and give you some more info. P.S. Don't take BASE advise from people that don't BASE jump. Edited to say fix: Freeflying experience isn't going to be imperitive in BASE, but it will be important on terminal jumps. I meant belly flying. You might need the ability to move away from the wall, and make sure you don't back slide toward the wall.

__________________________ I was told that having a couple hundred jumps would make base jumping easier to learn. __________________________ Having skydives gets you experience flying your parachute. I recommend getting your parachute experience under a canopy that is as close to your BASE canopy of choise as possible. Big 7 cell. Edited to add: This is what my mentor told me when I investigated getting in to BASE about a year ago.

In this case he was above the object, and approaching it horizontally and vertically. What would you have done? Options I can think of: both risers, right riser, right toggle all the way leaving left stowed, both toggles and take left to 50% and right to 100%, both toggles letting left up and using right to turn (probably 50%)? My decision would have been bary the right toggle. Seems like popping both could cause a slight surge if the control lines go up a bit before you get the slack all the way down.

I should clarify, in a perfect enviromet if it went to 100 degrees in a perfectly straight line, it would just bounce back and forth until is centered. But since air is chaotic, and there are other axis involed, it could oscilate. Edited to fix "it could oscilate." I had said "it could pendulum"

I was mainly replying to "No need to be afraid of a little porosity". Don't you get drastically more pull force from ZP. Would you have to use a 60" F111 PC to compare to a ZP46" pull force, even if it's vented. I'm pretty sure I have heard other benefits to ZP as well.

After watching a lot of videos and seeing occasional oscillation, it seems that oscillation might be partly due to pendulum force (not talking about double pendulum). If you pitch right and hit bridle strech, the upward force causes a pendulum force, since the PC is attached to a line and has to arc to the left to be able to move up completely. When it does get to the top, that pendulum force might drive it slightly farther left (if straight right is 0 degrees and straight up is 90, the pendulum force could push the PC over to 100 degrees). It seems like that could cause it to begin orbiting the center. Thoughts? Edited to fixed "begin orbiting the center." it said being orbiting.

Hmm. I can tell you put a lot of thaught in to that.

From our perspective it's width It's only length if your driving over it.

That's media for you. They must have meant width.