khtov

I know what are you talking about. The canopy is called Golf. The only size is 120sq ft. The guy whom I saw jumping it on Borki dropzone in Russia, had weight aroun 85-90 kg. 90kg is stated to be maximum suspended weight. The canopy is really weird, very twitchy and looks like an arc from the front. The guy who was jumping it was doing toggle hook turns to land it, 'cos he the riser pressure was too heavy, though his thinking of canopy conrol is limited by toggles only. Safe swoops, Andrew P.S. It is bounce that hurts, so grab the grass .....

XAOS-78 @ 2.3 : 1 Vengeance-107 @ 1.64 : 1 That's the usual loadings, they change sometimes when jumping with or without weights. Andrew P.S. It is bounce that hurts, so grab the grass .....

Does anybody know where to get soundtracks of Antigravity and Crosswind movies? Or at least the list of songs used.... Andrew P.S. It is bounce that hurts, so grab the grass .....

Well, I just couldn't find good velocity photos. Andrew Andrew P.S. It is bounce that hurts, so grab the grass .....

Looking at PA XAOS-21 and at PD Velocity from the front I noticed that upper surface of Velocity is smoother than of XAOS. What I mean is if you take one section betw. 2 loaded ribs it is divided into 3 chambers by 2 non-loaded ribs and there are crossbracing ribs coming from the bottom of loaded ribs, where suspension lines are attached, to the upper surface and to the nearest non loaded rib. The thing is that the upper surface attached to the top of all ribs on XAOS-21 seems to pop up more betw. loaded rib and non loaded rib on and less betw 2 non-loaded ribs, while on Velocity they curve evenly. I understand this is a design difference, but does it mean that Velocity has more even surface and thus giving better performance than XAOS or does it mean that the straight portion of the section on XAOS works as a real wing giving benefits of wing without vertical distorsion? For you to understand me easier I attach the pics of Velocity and XAOS. Andrew Andrew P.S. It is bounce that hurts, so grab the grass .....

Thank you for the information. Very helpful indeed. Andrew

Is there any sense in attaching small loops to the rear risers, maybe to their front side, so it would be easier to grab them to perform rear riser swoop? Did anyone try this type of riser upgrade, or is it too complicated? Safe swoops Andrew

I was using these devices on my first jumps as well. PPK-U and KAP3 AAD are 2 devices manufactured in Russia. They are mechanical and to pull out the pin they use the spring, that you have to pull out before the jump. KAP3 is used on military rigs only, since in counts 3 seconds and pulls. This is because in Russian airborne troops they use parachutes with stabilizing chute which comes out by a static line when a person exits the aircraft and then after 3 seconds KAP3 or a person pulls the ripcord, which releases the lock holding the main allowing the pilot chute to drag it out and deploy. PPK-U is more multipurpose design which along with timing mechanism for 5 seconds has a membrane allowing the device to be adjusted to a certain altitude. This allows it to be used on sport rigs as an AAD for main or reserve chutes. In case of using it on main, mostly on student rigs with pilots chutes with spring, PPK-U is connected to the ripcord and adjusted to the altitude of around 1000m. All rigs that I saw with such installation had CYPRES. When used on reserve (mostly on low cost rigs) it is connected to a reserve pin and locked on it with a cord attached to the main risers, so when main comes out the risers pull out the cord and PPK-U pulls on the adjusted altitude (usually 400m) idly. PPK-U is a design of the 50s-60s and it was rather advances for that time. The advantage of it is low cost. Since it is completely mechanical there are a number of disadvantages^ 1. you have to pull up the spring on every jump on the ground. 2. you have to activate the device in the aircraft at the altitude at least 500 higher than preset altitude. 3. once activated it is sensitive to mechanical shock. 4. since the factory uses 760mm standard atmospheric pressure to calibrate the device, you have to know the current atmospheric pressure to set the altitude correctly. 5. it requires cleaning and testing to work properly and these procedures are being held in a limited number of workshops even in Russia. Never the less it is still used with success on round canopy static line jumps in Russia on main and reserve canopies. Safe swoops, Andrew

As I know in Dytter family only Pro-Track has volume setting possibility. I jump RW without visual altimeter. And Pro-Dytter sounds in my Oxygen helmet loud and clear. I also have an N-vertigo helmet and I had to enlarge the sound passage area and used some tape to close the holes the wind blows in, because before that the sound was barely audible. Safe swoops, Andrew

With this kind of d-bags you should do your first stow in the middle of the bag, the second stow should be the side one, to which lines go directly from your first stow, the third is the opposite to the second. Anyway I think the best idea is to find someone who is familiar with such bags to show you how it works on your container. Safe swoops, Andrew