linebckr83

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Everything posted by linebckr83

  1. That's just because of the way it was designed to close. I've had a Nitron 170 and Xfire2 149 in mine with no problems or troubles ever. "Are you coming to the party? Oh I'm coming, but I won't be there!" Flying Hellfish #828 Dudist #52
  2. Mine felt a bit tight across the yoke as well when I first bought it. It will loosen up and break in as you jump it. I've got about 100 jumps on mine now, but I think the last 50 or so have felt the same once it loosened up. Enjoy! "Are you coming to the party? Oh I'm coming, but I won't be there!" Flying Hellfish #828 Dudist #52
  3. Crossfire2: The openings, riser pressure, toggle pressure, diving ability, glide on rears, flare. It does EVERYTHING good. If I wanted something less high performance, I loved my Pilot to death. "Are you coming to the party? Oh I'm coming, but I won't be there!" Flying Hellfish #828 Dudist #52
  4. That one was rough, I did another one that next week that looked nice and pretty and showed it to martin. We decided it was pretty damn close to what we saw. Time to start looking for next year! "Are you coming to the party? Oh I'm coming, but I won't be there!" Flying Hellfish #828 Dudist #52
  5. Distance horizontally, vertically, or both? On a cloudy day last year at the All-Kansas boogie, we did a pumpkin drop competition. Afterwards (ya i was too late) I came up with a diff eq to figure out the horizontal release point, given a set altitude and speed, so that the forward throw would end up on the target. I'll try to dig it up when I get home. Either way, I think I went the route of finding t first (which you say will be given) then using the diff eq to find distance traveled during t seconds based on velocity decreasing because of drag. If that helps at all. It was awhile ago "Are you coming to the party? Oh I'm coming, but I won't be there!" Flying Hellfish #828 Dudist #52
  6. This seemed to work for me. Sub macro() Dim wav_name As String Range("A1").Select Do While ActiveCell.Value "" ActiveCell.Offset(0, 2).Select wav_name = ActiveCell.Value ActiveCell.Offset(1, 0).Select Do If ActiveCell.Value = wav_name Then ActiveCell.Offset(1, 0).Select Else Exit Do End If Loop Range(ActiveCell.Offset(0, -2), ActiveCell.End(xlDown)).Select Selection.Cut ActiveCell.End(xlUp).Offset(0, 3).Select ActiveSheet.Paste Loop Range("A1").Select End Sub "Are you coming to the party? Oh I'm coming, but I won't be there!" Flying Hellfish #828 Dudist #52
  7. Just a thought, I would start at cell C1 and assign a variable to the wav file name. Then I would move down the C column, checking to see if the current file name matches the last one (checking for changes). Once it changes, I would copy the data from that row and below, offset 3 columns to the right and to row 1, paste the data. Then loop here so it does all that again but on column F instead. Until you get to the bottom of the list. I could write something for you but it would take me half an hour or so. "Are you coming to the party? Oh I'm coming, but I won't be there!" Flying Hellfish #828 Dudist #52
  8. $11 for tandems. $6 for student rigs. Usually $6 for sport rigs. "Are you coming to the party? Oh I'm coming, but I won't be there!" Flying Hellfish #828 Dudist #52
  9. In a Flight-1 class with Tommy in May we discussed the different ways. He said he was always a rear riser guy and would debate rears/brakes with Ian until he went up and tested them out. He now agrees that deep brakes are best. I was a rear riser guy too until that course, now I go into deep brakes as well. Plus I will put my thumbs in my hip rings and steer with harness input. MUCH less work than hanging on risers the whole way back! "Are you coming to the party? Oh I'm coming, but I won't be there!" Flying Hellfish #828 Dudist #52
  10. Name: Michael Bradfield Occupation: student, aerospace engineer intern Why dont you put your real qualifications when you post. I'm not sure where I was mistaken here. I said class, and you highlight that I'm a student... My job is not to make copies. I do the same thing as every other engineer here. After 3 years as an intern, I work on high priority stuff every day, but for a fraction of the cost to the company. Experience is experience. I will be a 5th year senior this fall, and every single aero or flight dynamics class I've been in involves reading or creating polar curves. "Are you coming to the party? Oh I'm coming, but I won't be there!" Flying Hellfish #828 Dudist #52
  11. I have only about 3 years experience as an Aerospace Engineer in Advanced Design and have been looking at drag polar curves on a daily basis. Not to mention everyday in Flight Dynamics class. Seems like a pretty common thing to me. "Are you coming to the party? Oh I'm coming, but I won't be there!" Flying Hellfish #828 Dudist #52
  12. I was on a Nitron 170 loaded 1.45:1, basically the same as your stilletto. I downsized to a Xfire2 149 loaded at 1.6 just like your Xfire2 139. I jump in kansas and its obviously windy here all the time. I haven't personally had any issues in turbulence so far. I think the increased forward speed from the additional wing loading helped more than anything, but I just let her fly and have been having less issues than everyone else here. "Are you coming to the party? Oh I'm coming, but I won't be there!" Flying Hellfish #828 Dudist #52
  13. Just curious, why have you ruled out the Vector 3 M-Series/Micron? "Are you coming to the party? Oh I'm coming, but I won't be there!" Flying Hellfish #828 Dudist #52
  14. My Pilot 188 was the same way. I had to take a wrap to stall it out on toggles. Like Brian said, the stall speed on those bigger canopies is low enough that the speed you can slow down to with the toggle stroke is more than enough to flare correctly. "Are you coming to the party? Oh I'm coming, but I won't be there!" Flying Hellfish #828 Dudist #52
  15. So to educate me beyond what they teach us in aerodynamic theory and flight classes, is there a better equation to predict the speed of sound in a gas? Or is it just knowing the deviation some gases make by testing them? "Are you coming to the party? Oh I'm coming, but I won't be there!" Flying Hellfish #828 Dudist #52
  16. I thought an article on the jump quoted someone in saying that they plan on transonic speeds being reached about 30 seconds into freefall. I think that's the approximation of when the density is still low but he'll be in freefall long enough to pick up enough speed. Anything before that and he hasn't accelerated enough. Anything after that he begins to decelerate through denser air. I also seem to recall Kittinger commenting of the buffeting of his body as he approached transonic speed, and how painful it was. It will be interesting to see how that plays out. "Are you coming to the party? Oh I'm coming, but I won't be there!" Flying Hellfish #828 Dudist #52
  17. Ok that equation is always used to closely approximate the speed of sound in a gas. I thought it was understood that it is not an absolute exact. "Are you coming to the party? Oh I'm coming, but I won't be there!" Flying Hellfish #828 Dudist #52
  18. Speed of sound is always the square root of (gamma * the gas constant R * temperature T). For air, gamma equals 1.4. In SI units R is 287 and T is in kelvins, in English units R is 1716 and T is in Rankine. The square root of 1.4 * 1716 is 49.014, hence your equation. "Are you coming to the party? Oh I'm coming, but I won't be there!" Flying Hellfish #828 Dudist #52
  19. Same here. It's the least we can do! "Are you coming to the party? Oh I'm coming, but I won't be there!" Flying Hellfish #828 Dudist #52
  20. Not sure about your first point so I'll leave it to someone who knows more, but this is certainly a good idea. There have been a lot of discussions on it, just search ground speed vs. airspeed. Remember that whatever your ground speed is, your canopy is always flying through an air mass that is moving. Reducing your parasitic drag will allow you to fly through that air mass faster. Front risers or not, getting small is a good idea when you need forward penetration. "Are you coming to the party? Oh I'm coming, but I won't be there!" Flying Hellfish #828 Dudist #52
  21. I have witnessed this to be exactly true. In a class called "The Fundamentals of Atmospheric Flight" I took a year or so ago, we had a project to build a glider (obviously with a high aspect ratio) released at 1000 feet with an airspeed of 60mph, and it was a competition to see who could cover the most ground. This was done in X-Plane with no wind. While most groups tried flying their gliders right at stall speed, we found that the best approach was to calculate the airspeed corresponding to the most efficient L/D ratio. This airspeed was, for our setup, about 20mph over the stall speed. The class thought we were crazy when we immediately trimmed nose down to pick up speed instead of holding near the stall speed, but I'll be damned if we didn't win, and win by a considerable margin "Are you coming to the party? Oh I'm coming, but I won't be there!" Flying Hellfish #828 Dudist #52
  22. Because of this string of tornado/thunder storms across kansas, I get to watch the weather guys repeat the same damn information over and over again instead "Are you coming to the party? Oh I'm coming, but I won't be there!" Flying Hellfish #828 Dudist #52
  23. I have done it and I believe I achieved good results. In a completely avoidable situation I found myself about 600 feet above a house and coming straight down in a strong head wind. I used front risers to get some penetration to land in the backyard. To either side or turning around were not options due to obstacles. I learned my lesson there. Long story short, avoid ever setting up over anything you don't wish to land on, but front risers can be used to get penetration yes. As for starting that at 200-300 feet, that's questionable and determining if it is safe depends on a lot of variables. "Are you coming to the party? Oh I'm coming, but I won't be there!" Flying Hellfish #828 Dudist #52
  24. Why are you talking please be quite now! Ive got a CF 134 loading at 1.6 and its good for straight in approaches , it gets me back from long spots hanging on the rears and it can be swooped in. Its an awesome canopy! Isn't that basically the same thing I said? and i quote "it landed sweet on a typical straight in landing" and "I think you'll like how it shuts down" "Are you coming to the party? Oh I'm coming, but I won't be there!" Flying Hellfish #828 Dudist #52
  25. I never claimed the katana 170 is slow. Obviously I know the opposite is true. But I think the crossfire and katana are closer in performance than you think. Not equal no, but closer. Certainly a 30sqft drop to a canopy with close performance qualities will make a noticeable difference at least. The 159 was loaded about 1.5 on me and it landed sweet on a typical straight in landing, once in about 10kt head wind and the other in no wind. I think you'll like how it shuts down. "Are you coming to the party? Oh I'm coming, but I won't be there!" Flying Hellfish #828 Dudist #52