
skydiverek
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Everything posted by skydiverek
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Student AADs have much lower fire speed. Only like 29 mph for Student Cypres. Easily acheivable in descending airplane.
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Something must have gotten 'stuck', when it comes to processing paid ads. If you look at the main classified page, there are ZERO paid ads displayed... (such thing never happens here): http://www.dropzone.com/classifieds/ Second, I paid for the ad yesterday, my Paypal shows the money was paid, but the confirmation email (from dropzone.com) never arrived (and it always did, in the past). Also, the ad is not displayed in the "Featured" parts of the Classifieds. Could you look into this?
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Quick question - differences between Optima I and II?
skydiverek replied to degeneration's topic in Gear and Rigging
Non-cracking case. That's it. All alarms are the same. Quattro is different alarm-wise. -
Yes, on Sigmas too.
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Ultra Performance Canopies & AAD
skydiverek replied to jacketsdb23's topic in Swooping and Canopy Control
ASTRA had that. -
Ultra Performance Canopies & AAD
skydiverek replied to jacketsdb23's topic in Swooping and Canopy Control
From Billvon about this video: "Question: I do not understand why the reserve PC emerges at like 20 feet. Answer from BILLVON: swoopers can hit speeds near freefall during the turn. At that point the burble that commonly forms behind people in freefall will result in the AAD seeing an altitude increase of up to 300 feet. (This is taken into account by "upping" the activation altitude by 300 feet in back-mounted AAD's.) Thus the sequence can proceed like this: Swooper at 1000 feet. AAD reads 1000 feet. Swooper starts turn and accelerates to near-freefall speeds. Swooper is at 500 feet in the turn. AAD reads 800 feet. (500 feet + 300 foot burble) Swooper begins to plane out. Swooper is at 100 feet and starting to slow down. AAD reads 400 feet. (100 feet +300 foot burble.) As swooper slows, burble is reduced. In rapid succession, AAD reads 250 feet (50 feet + 200 foot burble) and then 170 feet (20 feet + 150 foot burble.) This exceeds both the firing altitude limits (130 feet) and vertical speed limits (114 feet per second) and the AAD fires." MORE: http://www.dropzone.com/cgi-bin/forum/gforum.cgi?post=4167133#4167133 -
Ultra Performance Canopies & AAD
skydiverek replied to jacketsdb23's topic in Swooping and Canopy Control
No pull after cutaway. -
https://sskinc.com/UsedCypres2.asp
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I also jump Pilot 168 at 1.1:1, and the situation is exactly the same. From what I have read, this is common with Pilots loaded around 1:1.
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https://www.youtube.com/watch?v=sn2BCmnDUUM
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From Mirage's public Facebook page: QUESTION: And how does it handle RSL-side riser release (without Collins Lanyard, obviously)? MIRAGE'S ANSWER: Mirage RSL's have always been built without an RSL side riser release system (Collin's lanyard). This is also true of the Trap System RSL. Every system has advantages and disadvantages and Mirage favors simpler designs whenever possible. A secondary riser release is not beneficial in every situation. For example: if the white type 2A loop that goes through the small 3-ring were to break while making final turns for landing, a secondary riser release would not be desirable since a partial canopy at low altitude will almost always be preferable to no canopy. Mirage builds its main risers with the RSL ring below the confluence wrap and grommet specifically to reduce the risk of an RSL side riser release (see image). If an RSL side riser release were to occur, the recommended procedure for either a standard RSL or a Trap System RSL is for the jumper to pull both the cutaway handle and reserve ripcord IF AND ONLY IF they are at a safe cutaway altitude. If they are below a safe cutaway altitude then it is up to the jumper to decide if they prefer to land only the malfunctioned main or pull their reserve also. Photo was attached: https://scontent-cdg.xx.fbcdn.net/hphotos-xpf1/t31.0-8/11157429_830515283704092_770289413077792426_o.jpg QUESTION: What about a horse shoe mal where the container is open and pilot chute still in the BOC? MIRAGE'S ANSWER: Horseshoes are a dreaded malfunction. In the event of a horseshoe malfunction a jumper must decide whether to cutaway one half of the horseshoe in an attempt to provide more clear air for the reserve to deploy, or to deploy the reserve into the horseshoe. Most jumpers prefer to cutaway and then try to keep the still attached main from entangling with the reserve. Since an RSL is activated by the main risers disconnecting, if the jumper doesn't cutaway but instead only pulls the reserve ripcord, then the Trap System won't engage. If the jumper cuts away and the risers release, the Trap System would engage but may be unable to take the freebag to line extension if the main is still attached to the jumper. If the reserve pilot chute finds clear air and is generating more drag than the still attached main, the Trap System will release the bridle and allow the reserve pilot chute to finish the deployment. An example of a Trap release can be seen on the last jump of this video at 4:21. The reserve pilot chute quickly generates more drag than the bag-lock, so the Trap releases the bridle and the reserve pilot chute finishes the deployment.
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Is this a proof, finally ? That you can gain altitude in wingsuit? From Facebook, but no logon required. (click HD in the lower right corner): https://www.facebook.com/luke.aikins/videos/10204982975668896/
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https://vimeo.com/user33057070/mirage-trap-system-in-malfunction-scenarios
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What canopy was that? Full name and size? Spectre 230. Yeah, so long lines, give slider grommets time to heat up...
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What canopy was that? Full name and size?
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Skydiving with tinnitus?
skydiverek replied to pleasedtomeet's topic in General Skydiving Discussions
I have started jumping with earplugs. Here are the key things: - air pressure equalizes inside your head, not outside your head, so earplugs do not affect this process (as far as I know, there are no natural holes in the ear-drum for the air to pass thru) - please correct me if I am wrong. - buy the highest NRR rated ear-plugs (NRR33 is the highest one possible). BUT, not all NRR33 rated earplugs block the same amount of noise at DIFFERENT frequencies. I have done a lots of research the 'Moldex' disposable foam earplugs (used in NASCAR) are THE BEST. Check the dB table in the PDF for a given model: http://www.moldex.com/hearing-protection/foam-earplugs/ - do not reuse foam earplugs. 'One jump-one pair' will keep you away from ear infections - buy the CORDED version. That way, you can remove the earplugs from underneath the helmet, after the opening, by pulling the cord (tuck it neatly under the helmet for freefall). With earplugs removed under canopy, you will not be deaf during the canopy collisions and command exchange with another jumper ('you cutaway!', etc) - freefall noise is over 120 dB, airplane can be over 100 dB, Optima is 120 dB. On an average skydiving day you are exceeding your daily noise quota (measured in minutes) many, many times, permanently damaging your hearing - there is no cure for deafness (apart from hearing aids...), or for tinnitus (constant 'ringing in the ears') - set your Optima canopy alarms to Volume "1", and the far-most left pitch (if you take your earplugs out, under canopy) - once you fly the airplane and jump wearing the earplugs, you will not want to do it again without them. It is like jumping with and without goggles - you are less worn-out after the day of skydiving - you can actually hear people BETTER in the airplane (the 'bad' engine noise is canceled, and the human voice is filtered and passed thru - pretty neat, huh? :-) ) - read this whole thread: http://www.dropzone.com/cgi-bin/forum/gforum.cgi?do=post_view_flat;post=4059225;page=1;mh=-1;;sb=post_latest_reply;so=ASC -
Can anyone attach the photos of a pocket / pocketed slider? Kind of what people used on "Sabre 1" canopies to slow down the openings.
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Can someone describe what is new gear-wise, as presented at PIA 2015?
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Does the Phat Daddy have a stiffener making it impossible for the handle to fold under the harness (main lift web)?
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I was told it will pack one to two sizes smaller.
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Clearly a slider bumper should have been used to separate the grommet from the link and riser. That's all that comes to mind when I see these pictures. Am I missing something? Chris Where would the heat go then? To the lines (all in one place).
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I jump with Spectre 190 with Dacron lines, wide Type 8 risers, and Reserve Slinks (the Dacron lines are the ones that generate heat). What I did is I put the Slink Hats upside down. So, their wide part is up on the lines, and not on the risers. That way, the hot slider grommets meet the Slink Hats first. Chutingstar said that did not help on long-lines tandems, but for me it works great! 700 jumps on that configuration and zero signs of heat burns.
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Read from THIS post, down: http://www.dropzone.com/cgi-bin/forum/gforum.cgi?post=3329635#3329635