trackingderby

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Everything posted by trackingderby

  1. Hello Scott Look's right if the vertical speed is regular and slow. Experiments shows that GPS with barometric capsule gives strange verticale speed graph. Some GPS techniciens explained us that gps with barometric capsule are mixing both altimetric and GPS altitudes informations in the log. They advize us to turn barometric capsule off to have less noize in the log. Do you agree? if you can understand my french tranlated to english :)
  2. Costyn, sorry i was late to answer, a baby just arrived at home:) On your track, you can see that the distance graph don't stop at the safety altitude thresold, but you score is stoped at 1000m. We will add few updates in the presentation of the parameters as the distance from exit to 15 second, and the distance from race end until opening. And pretty sure that we will reduce the timing of the race to 15s/90s. Thank's for your answers Claude
  3. We are asking around about race timing. With the right timing Vertical Altitude and safety altitude thresold are guide lines. We want a race that can fit from 13,5 K exit in respect with the common sence of deployment altitude. Do you like 2 miniutes?
  4. The rule is very well understood from people that did it so far in events. Jump out from 13.5K, race starts 15 s after exit until 105 s. I don't see any Russian roulette there. http://www.trackingderby.com/solorace.php
  5. Nice to see you into it now. The race is made for jumps around 13,5. Sorry for the one that don't have it, they are less DZ not going there. With all the Free Fly and RW population, most DZ spots hight. some times higher, that's why we have also a maximum vertical distance two. The safety limit is not far from "1000" meters, but we will keep it un-mentioned to make sure peoles are not playing with the limit. Pull when it is pull time. 2 minutes from 13,5 is challenging for beginers, but they won't stay beginers so long trying to have an efficient flight :) But again let's see what people performs.... For sure the group dives format need to be less than 2 minutes free fall time http://www.trackingderby.com/group.php
  6. tacke a look at www.trackingderby.com, if you have a GPS recorder you can try. Make diferent jumps with diferent, category, suits and angles. You will see what i am talking about. If you have a sujestion on the timing we use for Wing Sut. You are welcome to propose. i look foreward to see your scores.
  7. precison/accuracy, forgive a french man speacking english:) If you juge a tracking race in between two altitudes, you have a glide ratio race, witch will make sence with the same weight, size and suits... A race against the time is a ground speed race, then you can adapt your flight to maintain the best ground speed. This is the very goal of the Tracking Derby. A race where all players are potential winners. Check http://www.trackingderby.com/results_event.php?event=12, and see the profile of performers, Also on other events, the suits types are not really significants.
  8. This suit wés designed by Francis Hellman, french ex Patrick Deug partners on some projects. This suit is made with forms to maintains the shape of the wings. Crazzy expensive to produce i bet, but really powerfull.
  9. we found a really easy way to experiment the acuracy of GPS recorder. You let them on the ground for a good hours, then yopu watch the log. It is very usefull to see a device jumping all over the place :)
  10. Flying the distance will always be better with a tail wind. From most of the flyer feed back, they are more DZ spoting at 13,5 than lower, but that is the purpose of those posts. On an event it is easy to coordonate. But we want to expand event scores to a global race by adding the best scores by day to a 10 or 20 total scores addition per year. For sure with wind is the best, that's why we will add only 2 scores per day. We might swing to a 15s 90S timing, if this is needed. Let's see how it goes
  11. The GPS units with barometrics capsules log altitudes recalculated with GPS. Also thoses Baros are not fast enougt for free falling, the verticals speed graph shoows huges differences. I did some testing with a Geko 301, and definetly prefer the fortrex.
  12. There is the time and altitude ratio, 90s from 13,5K compared to 90s from 12K will permit way more flight angles diferences. Check the suit race from one event and compare the body shape of flyers getting closed to the same ground speed. We want to keep that flexibility and accessibility to evey wing suit size, body shape and weight. Sounds like like 90s is not bad :)
  13. We want a timing that allows differents angles of flight for diferent body shape from the average altitude of jumping. 15 + 90 second was the first choice, then we decide to have it more challenging frol 13,5 K. It is easy to switch. Let's see what people say. Thank's to all.
  14. A lite persons will need to pitch more, an heavy flyer will stay more flat. We discovered all those with the suit contest. Tracking against the time allows anyone to win. Then come the aditional weight, but we won't need belts, angles of flight are enought ...
  15. Having a race between two altitudes gives a lot of importance to the side of you suit and don't really deal in a better way with the wind. The GPS can not permit a stable judgment with altitude "too unprecise". Tracking against the time allows every body shape to be a potential winner. The Tracking Derby software have a safety altitude thresold, so it is not usefull to go low. The main question is on the timing out of a regular 13 500 ft. Two minutes is that hard for every one?