cobaltdan

pics are of alban and i. im the one in the wing. Daniel Preston atairaerodynamics.com (sport) atairaerospace.com (military)

Daniel Preston atairaerodynamics.com (sport) atairaerospace.com (military)

first pic: andrei flying by the exit point under a paraglider to photograph the base jump (i do nt have these pictures yet) second pic: stane and i at the top just before the exit point. third pic: me after landing and shaking off the adrenalin rush sorry no freefall pictures, neither stane nor i like to base jump with camera gear. but i will post andrei's pics when i get them Daniel Preston atairaerodynamics.com (sport) atairaerospace.com (military)

packing instructions are the same as for our cobalts. as pointed out please visit our website: www.extremefly.com any questions or for a reline call us @ 718-923-1709 sincerely, daniel preston atair aerodynamics Daniel Preston atairaerodynamics.com (sport) atairaerospace.com (military)

what is proper edicate on this forum: are pics from legal sites allowed? ~d Daniel Preston atairaerodynamics.com (sport) atairaerospace.com (military)

if anyone knows the whereabouts of jimi haliday, please have him call Dan @ Atair 718-923-1709 Thanks ! Daniel Preston atairaerodynamics.com (sport) atairaerospace.com (military)

just got back from a "business meeting" in italy. m.b. was simply glorious ! stane and i based while andrei took a paraglider off the eastern peak and did a close pass to photograph us in freefall. the visual was incredible. dan atair aerodynamics www.extremefly.com Daniel Preston atairaerodynamics.com (sport) atairaerospace.com (military)

Performance Variable is a popular german parachute company. Atair manufacturers all of their main and reserve canopies, with the exception of the demon. the demon was designed by michael nessler and is being produced offshore in sri lanka. sincerely, dan atair aerodynamics www.extremefly.com Daniel Preston atairaerodynamics.com (sport) atairaerospace.com (military)

yes weight distribution between a-b and c-d has been modified by changing the tail tension. additionally the slider is a different planform. (both things not really visable from the early photographs)... p.s. i will be off line and not able to relpy for the next week (in europe for military product testing) sincerely, dan atair aerospace www.extremefly.com Daniel Preston atairaerodynamics.com (sport) atairaerospace.com (military)

I just watched the video of the line twist openings. This looks to be the fault of the jumper. It looks like he instantly grabed and hung on the risers. grabing your risers during deployment will induce uneven force, no matter how symetrical you think you are. grabing your risers can induce twists and make for hard openings as it aborts the two stage opening. this is detailed in the instructions on using the cobalt. sincerely, dan atair aerodynamics www.extremefly.com Daniel Preston atairaerodynamics.com (sport) atairaerospace.com (military)

the pics look the same as the first ones published. there are no visable design changes... sincerely, dan Daniel Preston atairaerodynamics.com (sport) atairaerospace.com (military)

if you made 2 canopies identical in planform and airfoil, only difference being one was constructed from 7 cells and the other 9 cells: the only difference would be the 9 cell would have a lower spanwise distortion on the top skin airfoil. sincerely, dan atair aerodynamics www.extremefly.com Daniel Preston atairaerodynamics.com (sport) atairaerospace.com (military)

its perfect and orders are in production !!!!!!! sincerely, dan atair aerodynamics www.extremefly.com Daniel Preston atairaerodynamics.com (sport) atairaerospace.com (military)

we have landed cobalts and onyx canopies well into the 3 # / sq' range without swooping and with a complete shut down. obviously it requires a very high degree of skill, but if you can land your canopy as such you are jumping too high a wing load. sincerely, dan atair aerodynamics www.extremefly.com Daniel Preston atairaerodynamics.com (sport) atairaerospace.com (military)

we didnt want to mount anything to the actual windblade gates. the windblade gates must remain safe to hit. the idea was to mount a laser and sensor on an industrial tripod and locate some distance say 50'' to the side of the gate for safety. line up so that the beam shoots across the gate at the correct height to be sensed (i.e. level with the top of the flags) on the other side 50' out of the way would be another tripod with a retro reflector. With 3 pairs of such tripods you can measure: speed at first gate and overal speed and of course verify that the jumper made the gates. the system due to how big an area it is set up on would be wirelessly linked between tripods and the score computer instead of hard wired. sincerely, dan www.extremefly.com Daniel Preston atairaerodynamics.com (sport) atairaerospace.com (military)

another possible solution (but not cheap) is issuing a rfiq tag to each competitor and putting it on their foot. antennas at each gate would sense them and link to a computer... sincerely, dan Daniel Preston atairaerodynamics.com (sport) atairaerospace.com (military)

we designed and quoted a system for jim slaton two years ago. it used 3 laser sensors coupled with a computer to calculate speeds. the first two sensor were to determine if you made the first gate and your speed entering the first gate. the third was to sense if you made the last gate and your avarage speed through the course. the problem voiced: basically the cost about $10k. video cameras were the low cost solution. eventually a sensor system will be necessary as events get more tv time. a sensor based system could display speeds and missed gates immediately on a score board or overlayed on live video... sincerely, dan www.extremefly.com Daniel Preston atairaerodynamics.com (sport) atairaerospace.com (military)

Richard: i think you misunderstand: end cells closed: as in fully formed nose on the end cells, no inlets. sincerely, dan Daniel Preston atairaerodynamics.com (sport) atairaerospace.com (military)

We are currently testing the onyx and comp cobalt with fully closed end cells and we may offer it as standard in the future. Sincerely, Dan Atair Aerodynamics www.extremefly.com Daniel Preston atairaerodynamics.com (sport) atairaerospace.com (military)

beginner : someone with under 200 jumps typical wingload range for a beginner under a cobalt : 1.2 to 1.4 canopies do not all load the same. the cobalt loads .2# heavier than a saber for the same foward speed. this is not my opnion but measured fact. Instead of lying and skewing size measurements to make up for a more efficient wing i.e. calling a 160 a 170, as do some other manufacturers, we simply print the actual size and wingloading. no one would have the same knee jerk reaction if we said beginners should load 1.0-1.2 on a safire. but if you measure the size properly, the loading will be closer to our cobalt recommendation. as far as atair telling people what they want to hear: you couldn't be farther than the truth. We dont play marketing games, we dont skew our sizing and we are the only company that scientifically tests canopies with dataloggers and releases the data. any statement made can be backed with proof. i don t know about you but i do not want to hear a company make marketing claims like "absolutely the softest opening canopy period" i just want to see the force vs. time curve to prove it. anyway... sincerely, dan atair aerodynamics www.extremefly.com Daniel Preston atairaerodynamics.com (sport) atairaerospace.com (military)

yes, static line or drogue w 3-5 sec delay... Daniel Preston atairaerodynamics.com (sport) atairaerospace.com (military)

base jumping is sort of base related in that a typical smoke jump is performed under very lightly loaded 7 cell canopies designed for fast deployment in under 300' and landings are made in the tightest of landing areas. sincerely, dan Daniel Preston atairaerodynamics.com (sport) atairaerospace.com (military)

so a search for a therad named "balance and canopy control exercises" the information should be very helpful. sincerely, dan atair aerodynamics www.extremefly.com Daniel Preston atairaerodynamics.com (sport) atairaerospace.com (military)

are there any smoke jumpers monitering this forum? dan atair aerodynamics www.extremefly.com Daniel Preston atairaerodynamics.com (sport) atairaerospace.com (military)

350 tandem toggle pressure is slightly more than a sigma and lower than most anything else. this is with the standard brake line cascade setting: even cascades between primary and secondary toggles. however we can provide the cascades differently as per customer prefference. you can see a video on our website of niklas gummeson when he was at RWS test jumping out cobalt 350 at exits weights up to 1002# his landings were using only the primary toggles. Niklas is medium sized guy and definately not a strongman marine. i have to disaggree with your accessment on the canopy having "incredibly high toggle pressure". the canopy has truely unique characteristics: i.e. its stage openings, spanwise braced nose, and flight openings. you barely feel the canopy opening, hands down the best opening tandem canopy ever made ! and it is dead consistant. check out the video. sincerely, dan www.extremefly.com Daniel Preston atairaerodynamics.com (sport) atairaerospace.com (military)