Calvin19

32gb 3GS Iphone wins.

the most important thing you can do in any collapse situation is keep a heading. especially near the ground. do not let a collapse change your heading. you still have control of your canopy, even if the outside 3 cells are collapsed. Fly it, all the way. This is a canopy flying rule, not just for paragliders. keep the heading, and it will re-inflate. what not to do: http://www.youtube.com/watch?v=T24X-NBNsPM

a very crude commonly observed example can be seen in some drainage troughs where water is poured into the diagonal trough. it splashes out to the sides, then converges, then spreads back out, then back in, every time the wave crests getting smaller. OR, under a faucet with a smal stream of water coming out, put your finger under the water near the faucet and you can see a surface tension version of a similar phenomenon. -SPACE-

AWESOME! textbook root stall progression... win.

EVEN COOLER is the mach cones on invisible flame rocket engines. I am not a rocket surgeon, but I love that stuff. DID YOU KNOW, that even though most people think of the exhaust/air below a rocket motor is at very high pressure, it is not. in fact, on the space shuttle, below the main engines, the pressure is much lower than that of the surrounding air, these are inertial engines, not displacement engines (non-breathing) and even though a rocket has a small amount of thrust gain with atmospheric pressure, nearly all of it's thrust is from "throwing" it's inertial fuel, creating an opposite inertial reaction. (#3!!!) (at about 35-50 seconds) http://www.youtube.com/watch?v=wCY8ozgC0Kc pic http://commons.wikimedia.org/wiki/File:In-flight_close_up_of_Space_Shuttle_Atlantis_during_launch_(STS-117).jpg -SPACE-

YYYEEEAAAHHH!!! when I saw it I was solo in a PA-30 twin comanche, at full moon in Boulder, Co. I was doing strafing runs over the runway at VNE (220mph) air was cool, humid, and dead calm. My friend Alex [i love you and miss you buddy] was watching at the end of the runway. on one of the runs, at VNE, less than 500' from alex about 10' off the ground, I gave sharp up elevator input and gave her two or three G's. The red strobe mounted on the tail gave two full flashes of the densest fog I had ever seen, only out the side windows, on top of the wing. it was not super sharp like the mach cones in the pictures, and I could tell it was patchy, but still the coolest thing I had ever seen other than flying around Alaska. After I landed Alex told me It happened on every pass but the last one was the biggest. he also said it was strongest in the wake behind the wingtips.

word. good excerpt. on a different/same note, surface waves can give a very good model of sound waves viewed on a plane (the visualization in the launch vid in the first post of this thread essentially gave us a visualization of a pressure level in the atmosphere where the dewpoint and temperature were closer together than those above or below it. freaking AWESOME!

wiretap laws, minor drug abuse, tax spending, and civil law lameness asside, I am glad they bought macs instead of some shitty windows based plastic POS. Apple wins. -SPACE-

usually as density increases, inertial energy transfer (sound) speed is increased. Surface waves are VERY different from sound waves, if that is what you were talking about. -SPACE-

far less believable than what was posted in the title post of this thread. This phenomenon IS possible. the very same thing can be seen in nuclear weapons atmospheric tests. http://www.youtube.com/user/SineCalvin9#p/f/265/k-d9iwBSswY in the first minute you can see the same effect, only happening in on barometric layer. same thing. shock waves can come from bombs (impacts) or wakes (vessels/aircraft/ships) -SPACE-

The phenomenon shown here is not normally visual, but what we are seeing is a wave with extreme differences in pressure on the "top" and "bottom". most commonly seen in the Prandtl–Glauert singularity. super fast changes in air pressure instantaneously condense water in the air, and just as fast re-vaporize it. I was able to see it once in real life, on a civilian airplane. pretty cool stuff. one of few truly MAGIC things on earth. http://en.wikipedia.org/wiki/Prandtl–Glauert_singularity -SPACE-

that reporter was FINE

after 240k miles on a 1997 Subaru Outback 2.5l, that claimed 21mpg/27mpg, I got an average of 24.1mpg, sometimes when delivering pizza I got 16mpg for weeks at a time. On a few road trips I got 27 average. on one I got 31mpg for 900 miles. (driving east with a 30kt tailwind)

Asterisk is the name my sister gave her awesome cat. risky for short. -SPACE-

wow. Alex is getting part of his service at Fort Logan, He was a US Marine. I dare them to show up there. It has been a long time since I sent someone to the ICU. And I know I'll have backup.

100% disagree. 1-fly the airplane 2-look outside 3-navigate 4-talk on the radio. this coming from a 1000hr com/ins/multi/gli pilot who lost his bes friend to possibly someone not paying attention. the radio means 5% of what looking around does.

The tow pilot was Alex. Himself and the pilots of the Cirrus were killed. The today show guy was the glider pilot and passengers. he did nothing really special, not bad that he is being hailed a hero, but he did nothing really. the tow rope on the glider side has a weak link as well as a directional hook, any load that is not from forward it falls off. he did a good job keeping his head and bringing the passengers back to the airport though.

new link for Alex and my Rope Jumping film http://vimeo.com/9330103 -SPACE-

a sport more popular in europe. speed riding. MOSTLY done by people (who do not want to kill themselves at least), who are trained in small canopy paragliding, (NOT just skydiving, but the small canopy experience does help) and Using design specific speed flying/riding (foot launch/ski launch respectively) gliders. NOT your muppet clapped out swooping canopy.

It sounds like you have it backwards. Above 3000' AGL we assign cardinal altitudes, even N and W-bound, odd S and E-bound, +500 for VFR and OTP. Below 3000' AGL there is no specified or recommended altitude, just what ever works. I often use, below 3000 AGL, any multiple of 100' that suits my purpose for IFR traffic. all irrelevant if you are climbing/descending or in towing operations. Alex had the right of way. PERIOD.

In the PA-25 was Alex Gilmer. http://www.dropzone.com/cgi-bin/forum/gforum.cgi?post=3793876;sb=post_latest_reply;so=ASC;forum_view=forum_view_collapsed;;page=unread#unread

hey guys, I saw the whole thing from the ground. in the towplane a Pawnee PA-25 was my best friend. what a great airplane, we had flown that plane for towing for hundreds of hours. him way more than me, I came before. don't much care who was in the muppet minivan cirrus. my heart to their families, of course, but they killed my best friend. blindsided him. Alex flying west towing a glider, the Cirrus came from the north. I was at our paraglide site, the collision happened over head and northeast a mile or tow. I was waiting for him to get off work. he would come meet me to paraglide. saw the explosion, saw the glider fly out of a fireball. they made it back to the airport. I don't know why I am online. I spent all day with his girlfriend yesterday. i guess i just get comfort from the stupid internet. fuck.

I watched my best friend, my hero, die today. he was a jumper, a pilot, a flyer. I learned how to climb, nay, we taught ourselves how to climb together. we learned to jump, to fly, to dream together. not shy of 20 years. my best friend. we were 13, we saw a BASE jump on tv. we both said we would do that someday. five years later there we were. at 15 we started rope jumping. I don't know what to do now. he was the other half of the team. he had my back. we were 19 and 20, we bought an airplane together. we had plans to buy another one soon. now what. we started paragliding together five years ago. I was an idiot and he held me while seizing on the side of a mountain, telling the medics to hurry. cause I was dying. that was four years ago, today. not 20meters from where he watched over me, I looked up to see him fall from the sky. his single engine rocketship in pieces, destroyed by negligent muppets in a cirrus minivan that blindsided the best pilot I knew. never saw it coming. I ran down that mountain, knowing it was him, knowing what i did not know. there were no one else towing today. he texted me the reminder of my 4 year coma anniversary we had plans to do our usual paraglider/speed flight when he gets off early. but that was before he took off. dont know what to do now.

yes, at least one has. the problem is mixing two different airfoils with different ideal AOAs. does not work well. -SPACE-

try the little cloud 18 or bullet XT 16, super cruiser launching and flying, good glide (5/1) and slow landings. perfect for Aussie land, or so I hear. -SPACE-